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Showing papers on "Image file formats published in 1995"


01 Jan 1995
TL;DR: In this article, the acquisition and use of digital images in a wide variety of scientific fields is discussed. But the focus is on high dynamic range imaging in more than two dimensions.
Abstract: "This guide clearly explains the acquisition and use of digital images in a wide variety of scientific fields. This sixth edition features new sections on selecting a camera with resolution appropriate for use on light microscopes, on the ability of current cameras to capture raw images with high dynamic range, and on imaging in more than two dimensions. It discusses Dmax for X-ray images and combining images with different exposure settings to further extend the dynamic range. This edition also includes a new chapter on shape measurements, a review of new developments in image file searching, and a wide range of new examples and diagrams"

652 citations


Patent
24 May 1995
TL;DR: In this article, a digital camera equipped with a processor for authentication of images produced from an image file taken by the digital camera is provided, where the image file and the digital signature are stored in suitable recording means so they will be available together.
Abstract: A digital camera equipped with a processor for authentication of images produced from an image file taken by the digital camera is provided. The digital camera processor has embedded therein a private key unique to it, and the camera housing has a public key that is so uniquely related to the private key that digital data encrypted with the private key may be decrypted using the public key. The digital camera processor comprises means for calculating a hash of the image file using a predetermined algorithm, and second means for encrypting the image hash with the private key, thereby producing a digital signature. The image file and the digital signature are stored in suitable recording means so they will be available together. Apparatus for authenticating the image file as being free of any alteration uses the public key for decrypting the digital signature, thereby deriving a secure image hash identical to the image hash produced by the digital camera and used to produce the digital signature. The authenticating apparatus calculates from the image file an image hash using the same algorithm as before. By comparing this last image hash with the secure image hash, authenticity of the image file is determined if they match. Other techniques to address time-honored methods of deception, such as attaching false captions or inducing forced perspectives, are included.

521 citations


Patent
07 Jun 1995
TL;DR: In this article, a system 10 and methods for acquiring and archiving images derived from multiple sources with minimal operator interaction and understanding of the archiving computer 11 is presented, where the operator is not given access to the operating system of the computer and can only perform a predetermined set of functions that correspond to graphical icons disposed on the computer desktop 17 (monitor 12).
Abstract: A system 10 and methods for acquiring and archiving images derived from multiple sources with minimal operator interaction and understanding of the archiving computer 11. The system 10 and methods provide for reception of digitized images via modem 24 from a remote source, and the input of images from local sources including a digital photographic image source 25 such as a digital camera or 35 millimeter digitizing camera data back, an optical scanner 23, and digitized images previously stored on magneto-optical disk or digital audio tape. The system 10 also archives and distributes image and document data to multiple destinations, including a magneto-optical drive 22, digital or hard disk drive 15, and to laser or photographic quality continuous tone printers 26, 27. One key aspect of the system 10 and methods is that the operator is not given access to the operating system of the computer 11 and can only perform a predetermined set of functions that correspond to graphical icons 30 disposed on the computer desktop 17 (monitor 12). Each of the icons 30 launches a set of linked macro functions that initialize the modem 24, control data transfer, format the received image data into a predetermined format, attach textual data to the image files, and automatically archive or print the files. Submenus are provided during operation that permit certain selected actions related to the macro that is being run.

363 citations


Patent
10 Apr 1995
TL;DR: In this paper, a processor-based network server operates as a system interface between one or more user control terminals, a media image capture station through which media image input/output devices are coupled to the network server, and a memory for storing media image files to be retrieved for reproduction.
Abstract: An integrated media image information storage and retrieval system processes information supplied by different types of media. A processor-based network server operates as a system interface between one or more user control terminals, a media image capture station through which media image input/output devices are coupled to the network server, and a memory for storing media image files to be retrieved for reproduction. A supervisory media image manipulation and control program is accessed through a supervisory graphical user interface at any user control terminal, and has embedded subordinate media image manipulation programs for different types of media and information formats. When using the interface to import information from an arbitrary medium, the user is able to generate a first, index storage file, and a supplemental text description-based file, so as to facilitate rapid retrieval of any type of data, regardless of its original format (e.g. text, picture, text-picture combination, video, audio) and regardless of the capture medium or source from which it is imported into the system.

254 citations


Patent
31 Oct 1995
TL;DR: In this article, a method and apparatus that accounts for utilization of digital applications on an as used basis is accomplished by compensating a publisher for each use of its digital application instead of a lump sum purchase price.
Abstract: A method and apparatus that accounts for utilization of digital applications on an as used basis is accomplished by compensating a publisher for each use of its digital application instead of a lump sum purchase price. This is done by embedding a tariff file within the digital application where a digital application may be a software application, a video file, a text file, and/or an image file. The embedded tariff file, which includes a digital application identification code and a publisher identification code, is used by a meter module to generate accounting information. The accounting message is routed to a collection agency which, in turn, generates debiting information for the user and crediting information for the publishers of the digital application.

236 citations


Patent
18 Apr 1995
TL;DR: In this article, the authors present a method and apparatus for extracting, synchronizing, displaying, and manipulating text and image documents in electronic form for display, such as for patent documents.
Abstract: The present invention provides a method and apparatus for extracting, synchronizing, displaying, and manipulating text and image documents in electronic form for display. In the Preferred embodiment of the present invention, text and image files for documents, such as for example patent documents, are initially stored on separate magnetic tape media. These data files are extracted from the respective tapes and placed onto a faster medium, such as a hard disk drive. The text and image files are synchronized to produce Equivalent Files using heuristic algorithms to create an approximate equivalence relationship between the text and the image files. The Equivalent Files and image files residing on, for example, a hard disk drive or compact disk (CD), are coupled as a resource to a computer display system. The graphic user interface of the present invention permits the user to display, manipulate, and edit the Equivalent File created using the process of the present invention, and to simultaneously view the image file on the display. Using the graphic user interface of the present invention, a user may create libraries of patent Equivalent Files and image files or documents of another type, as well as open cases to include a plurality of different patents or other documents. The Equivalent File may be selectively viewed on the display in an equivalent window. Simultaneous with the viewing of the Equivalent File within the equivalent window, the user may view any portion of an image file within one or more image windows on the display. A variety of other features and functions are provided by the present invention for the manipulation and display of patent documents and other documents on the user interface.

234 citations


Patent
14 Jul 1995
TL;DR: In this paper, a system and method is disclosed that compresses and decompresses images, which includes an encoder (130) which compresses images and stores such compressed images in a unique file format, and a decoder (110) which decompresses the images.
Abstract: A system and method is disclosed that compresses and decompresses images The compression system and method (126, 128, 130, 132) includes an encoder (130) which compresses images and stores such compressed images in a unique file format, and a decoder (110) which decompresses images The encoder (130) optimizes the encoding process to accommodate different image types with fuzzy logic methods (152) that automatically analyze and decompose a source image, classify its components, select the optimal compression method for each component, and determine the optimal parameters of the selected compression methods The encoding methods inlcude: a Reed Spline Filter (138), a discrete cosine transform (136), a differential pulse code modulator (140), and enhancement analyzer (144), an adaptive vector quantizer (134) and a channel encoder (132) to generate a plurality of data segments that contain the compressed image The plurality of data segments are layered in the compressed file (104) to optimize the decoding process The first layer allows the decoder (110) to display the compressed image as a miniature or a coarse quality full sized image, the decoder (110) then adds additional detail and sharpness to the displayed image as each new layer is received The decoder (110) uses optimal decompression methods to expand the compressed image file

156 citations


Patent
02 May 1995
TL;DR: In this article, a film camera including an electronic display is provided with a driver for presenting moveable markers to frame and edit the electronically displayed image, allowing for zooming and cropping the image, as well as changing the image format and horizontal or vertical orientation.
Abstract: A film camera including an electronic display is provided with a driver for presenting moveable markers to frame and edit the electronically displayed image. Electronic manipulation of the markers provides for zooming and cropping the image, as well as changing the image format and horizontal or vertical orientation. The control then records editing data on the film in a predetermined position relative to the exposed scene image. The camera includes an input for selecting a print format from a predetermined set of print formats, each having a predetermined size and aspect ratio, and the control limits the frame formats to those that are consistent with the selected print format.

65 citations


Patent
30 Jun 1995
TL;DR: In this paper, a scene is imaged from a plurality of points of view to generate plural images, each including an image value and distance for each picture element, which are then converted to a principle point of view.
Abstract: A scene is imaged from a plurality of points of view to generate plural images each including an image value and distance for each picture element. The images are converted to a principle point of view to generate a non-standard image that accounts for hidden objects in the scene from the perspective of the principle point of view by including multiple image values and distances for each picture element. The non-standard image is then converted to generate a plurality of display images, each having a different display point of view. The display images are individually displayed at corresponding display elements arrayed in a display panel for viewing. A lens at each display element fans out the display image and thus restricts the amount of the image visible at any given perception point to produce true three-dimensional images. An application of the system is disclosed for effectuating a virtual conferencing facility. Furthermore, disclosure is made of the generation or modification of three-dimensional images in the non-standard image format.

59 citations


Patent
14 Nov 1995
TL;DR: In this paper, an image retrieval method and apparatus for searching a plurality of images stored in an image file for a desired image are disclosed, when a designated image for designating an image to be retrieved for is input, and its color is designated, the sizes and colors are compared between description information which stores the feature of each of regions obtained by dividing each of images to be searched stored in the image file and feature data of the designated image.
Abstract: An image retrieval method and apparatus for searching a plurality of images stored in an image file for a desired image are disclosed. When a designated image for designating an image to be retrieved for is input, and its color is designated, the sizes and colors are compared between description information which stores the feature of each of regions obtained by dividing each of images to be searched stored in the image file, and feature data of the designated image. In this manner, the regions, which are determined to be included in the designated image, of image data are obtained, and the similarities between the obtained regions of image data and the designated image are calculated. Image data having higher similarities are read out from the image file, and are displayed while being sorted in the descending order from the highest similarity.

59 citations


Patent
06 Feb 1995
TL;DR: In this article, an image is created with the same formatting as the target drive in each computer onto which the software is to be installed, using the known target drives as a frame of reference.
Abstract: To accelerate the process of installing software on a number of computers, an image is created with the same formatting as the target drive in each computer onto which the software is to be installed. To do so, a controller determines the manner in which target drives on the computers are formatted. The image drive is then created with the same formatting, using the known target drives as a frame of reference. Once the image drive has been created and the desired software bundle loaded onto it, the software is installed on the computers from the image file, on a block-by-block basis, rather than utilizing individual file transfer under the control of a higher level file management program.

Patent
14 Dec 1995
TL;DR: In this article, the header information for a data description HTML(hyper text workup language) is generated in an HTML conversion part 3 and an HTML document description structural body is generated.
Abstract: PROBLEM TO BE SOLVED: To convert and work image data so as to treat the image data as an formation in a high degree on an internet as a simple constitution by relating a data description form and image data and outputting the data on the internet. SOLUTION: The header information for a data description HTML(hyper text workup language) is generated in an HTML conversion part 3 and an HTML document description structural body is generated. By incorporating facsimile information into this HTML format, the synthesized data file that the document description structural body and an image file are synthesized is generated, data is made into a text and the data of a compression/non- compression, etc., is stored in an image file 19 in the form of a file. Next, a file control processing is performed, a file name imparting processing is performed, further, the transmission data of the HTML description form is transferred from a facsimile equipment 1 to a personal computer 9 by using an interface 5 to be a bi-directional parallel data interface and an interface 11 and the data is transmitted on an internet.

Patent
06 Jun 1995
TL;DR: An educational and stress-relieving screen saver for exhibiting artists and their artworks on a computer monitor is presented in this article, which includes a plurality of compressed artist introductory files and image files of the works of art of the artists.
Abstract: An educational and stress-relieving screen saver for exhibiting artists and their artworks on a computer monitor. The screen saver includes a plurality of compressed artist introductory files and image files of the works of art of the artists. Files are segmented or identified according to artist groups wherein different groups may be selected or deselected for display, or added or deleted from the screen saver. During operation, routines are called for decompressing files and displaying artist's likeness and their works according to groups. A transition module is provided which includes a plurality of different effects which are called in a random or pseudo-random fashion to provide a variety of soothing and stress-relieving image transitions. Means are also provided for adjusting the time of display of image files and for providing on-demand display of detailed biographic information about each artist exhibited in the screen saver.

Patent
Hideto Kunihiro1
23 Oct 1995
TL;DR: In this paper, a data recording system for CD-ROM or similar recording medium a data file containing data such as compressed audio and video data and an index file containing index data for searching the individual data of the data file.
Abstract: A data recording system for recording in a CD-ROM or similar recording medium a data file containing data such as compressed audio and video data and an index file containing index data for searching the individual data of the data file. The data stored in the data file are recorded in a CD-ROM in three hierarchical stages, i.e., titles, scenes and shots or chapters, scenes and clips. The index file has a hierarchical format associated with that of the data file in order to manage the data of the data file in consecutive stages.

Patent
14 Nov 1995
TL;DR: In this paper, an image retrieval method and apparatus for searching a plurality of images stored in an image file for a desired image are disclosed, when a designated image for designating an image to be retrieved for is input, and its color is designated, the sizes and colors are compared between description information which stores the feature of each of regions obtained by dividing each of images to be searched stored in the image file and feature data of the designated image.
Abstract: An image retrieval method and apparatus for searching a plurality of images stored in an image file for a desired image are disclosed. When a designated image for designating an image to be retrieved for is input, and its color is designated, the sizes and colors are compared between description information which stores the feature of each of regions obtained by dividing each of images to be searched stored in the image file, and feature data of the designated image. In this manner, the regions, which are determined to be included in the designated image, of image data are obtained, and the similarities between the obtained regions of image data and the designated image are calculated. Image data having higher similarities are read out from the image file, and are displayed while being sorted in the descending order from the highest similarity.

Patent
08 Nov 1995
TL;DR: In this paper, an image file 21 and a sound file 22 are provided so as to totally record these additional information in one separate map file 24 and all the additional information required for presenting the information related to images or sounds can be provided from only the map file.
Abstract: PROBLEM TO BE SOLVED: To quickly present information related to images or sounds (such as the date of recording, recording mode, photographic conditions, reduced images and the information of notes) for a user. SOLUTION: This device records image signals and audio signals in a recording medium 2 together with their additional information and reproduces the recorded contents in the recording medium 2. In this case, an image file 21 and a sound file 22 are provided so as to totally record these additional information in one separate map file 24. Therefore, all the additional information required for presenting the information related to images or sounds can be provided from only the map file 24. Thus, it is not necessary to conventionally read out the additional information by opening the respective image file and sound file one by one.

Patent
07 Jun 1995
TL;DR: In this article, a system for performing edge enhancement of mixed low-resolution image files employs a binarization and sorting unit to sort data that is indicative of binary data from the mixed low resolution image input file.
Abstract: A system for performing edge enhancement of mixed low resolution image files employs a binarization and sorting unit to sort data that is indicative of binary data from the mixed low resolution image input file. The sorted binary data is then supplied to a binary data edge enhancement processor for edge enhancement processing. The output from the binary data edge enhancement processor unit is supplied to a data merger unit along with the original image data. The data merger unit determines whether the original image data was part of a gray-scale image. If the data merger determines the original data is part of a gray-scale image, the original data is supplied as the output of the processing system. If the data merger determines that the original data is binary image data, the output from the binary edge enhancement processor unit is supplied as the output of the processing system.

Patent
Jong Sik Choi1
18 Oct 1995
TL;DR: In this paper, an image format converter for an HDTV is presented, including a decoder for decoding transmitted data to output video data, image format information, picture structure information, an input frequency sync signal, an output vertical sync signal and an output line sync signal.
Abstract: An image format converter for an HDTV is disclosed including a decoder for decoding transmitted data to thereby output video data, image format information, picture structure information, an input frequency sync signal, an input vertical sync signal, and an input line sync signal; a sync signal generator for outputs a display line sync signal, display vertical sync signal, process line sync signal, and process vertical sync signal, according to the input image format and displayed image format, using the image format information and the input frequency sync signal output from the decoder, a display format signal externally input in accordance with the display format, and an externally input reference clock; and a format converter for converting the input video signal into a sequential scanning mode of 60 Hz frame rate or an interlaced scanning mode of 60 Hz frame rate, using the information values output from the decoder and sync signal generator.

Patent
19 Jul 1995
TL;DR: In this article, a moving image information file connected to a medium server is configured as shown in Figure 1, where the image information is divided into plural image information divisions, which are assigned and stored in storage devices.
Abstract: PROBLEM TO BE SOLVED: To easily distribute a fast forward image in a stable response without provision of the fast forward image as a separate image file. SOLUTION: A moving image information file connected to a medium server is configured as shown in figure. That is, moving image information is divided into plural image information divisions, which are assigned and stored in storage devices 201-20n sequentially. When a distribution request of moving image information is made via a communication network from a terminal equipment, the medium server reads the image information divisions of the moving image information on request in the order of, e.g. 211, 212,..., 2mn and distributes them. When a fast forward request comes from a terminal equipment during the distribution, succeeding image information divisions only from the storage device from which the image information divisions are read out at a point of time of the fast forward request and distributed. For example, when image information division 212 of the storage device 202 is read out and the fast forward request is made, the image information divisions 222, 232,..., 2m2 are read out of the storage device 202 and distributed.

Proceedings Article
01 Jan 1995
TL;DR: The Whole Frog project as mentioned in this paper developed a set of techniques for providing interactive 3D graphics via the World Wide Web (WWW) as part of the whole frog project, which had three goals: 1) to provide K-12 biology students with the ability to explore the anatomy of a frog with a virtual dissection tool; 2) to show the feasibility of interactive visualization over the Web; and 3) to demonstrate the possibility for the web and its associated browsers to be an easily used and powerful front end for highperformance computing resources.
Abstract: We have developed a set of techniques for providing interactive 3D graphics via the World Wide Web (WWW) as part of the Whole Frog project 1 . We had three goals : 1. to provide K-12 biology students with the ability to explore the anatomy of a frog with a virtual dissection tool ; 2. to show the feasibility of interactive visualization over the Web ; and 3. to show the possibility for the Web and its associated browsers to be an easily used and powerful front end for high-performance computing resources. We have developed techniques to utilize the Common Gateway Interface 2 (CGI) capability of WWW servers to provide an interactive 3D visualization front end through Web clients. These techniques have been used to make a Virtual Frog Dissection Kit 3 . A student using this kit has the ability to view various parts of a frog from many different angles, and with the different anatomical structures visible or invisible. For example, the student can press form buttons that indicate that he or she wants to view the frog from above, with the exterior and skeleton removed. An advantage to this technique, as opposed to dissecting a real frog, is that undissection is as easy as dissection. The kit has a forms 4 -based interface. Form submission results in a call to a CGI script, which in turn contacts a continuously running process on a more powerful machine to accomplish the graphics rendering of a large 3D data set representing the frog and its internal organs. The resulting image is converted to Graphics Interchange Format (GIF) encoding. When that process completes generation of the image, it passes the location of the image file and control back to the script which rewrites the image on the client. While this might sound awkward, the overall process is quite similar to how all rendering systems work, with the image being written into a local frame buffer, or sent across the network as an X-window image.

Journal ArticleDOI
TL;DR: In this paper, the authors developed a set of techniques for providing interactive 3D graphics via the World Wide Web (WWW) as part of the "Whole Frog" project, which provided K-12 biology students with the ability to explore the anatomy of a frog with a virtual dissection tool.
Abstract: We have developed a set of techniques for providing interactive 3D graphics via the World Wide Web (WWW) as part of the “Whole Frog” project 1 . We had three goals: 1. 1. to provide K-12 biology students with the ability to explore the anatomy of a frog with a virtual dissection tool; 2. 2. to show the feasibility of interactive visualization over the Web; and 3. 3. to show the possibility for the Web and its associated browsers to be an easily used and powerful front end for high-performance computing resources. We have developed techniques to utilize the Common Gateway Interface 2 (CGI) capability of WWW servers to provide an interactive 3D visualization front end through Web clients. These techniques have been used to make a “Virtual Frog Dissection Kit” 3 . A student using this kit has the ability to view various parts of a frog from many different angles, and with the different anatomical structures visible or invisible. For example, the student can press “form” buttons that indicate that he or she wants to view the frog from above, with the exterior and skeleton removed. An advantage to this technique, as opposed to dissecting a real frog, is that undissection is as easy as dissection. The kit has a forms 4 -based interface. Form submission results in a call to a CGI script, which in turn contacts a continuously running process on a more powerful machine to accomplish the graphics rendering of a large 3D data set representing the frog and its internal organs. The resulting image is converted to Graphics Interchange Format (GIF) encoding. When that process completes generation of the image, it passes the location of the image file and control back to the script which rewrites the image on the client. While this might sound awkward, the overall process is quite similar to how all rendering systems work, with the image being written into a local frame buffer, or sent across the network as an X-window image.

Patent
03 Oct 1995
TL;DR: In this paper, a hierarchical heap structure is used to store attribute information relating to all the data in a video and audio file obtained by a digital camera through image pickup and recording.
Abstract: PROBLEM TO BE SOLVED: To easily retrieval of a video and an audio file obtained by a digital camera through image pickup and recording. SOLUTION: A directory 231 is generated under a ROOT directory 230 and directories 232, 233 for video and audio data are generated under the directory 231. The directory 232 stores a map file 234 managing attribute information relating to all data by a hierarchical heap structure, an image data file 235, and combination information of reduced image data files 236 with added serial numbers. When number of stored data reaches 1000, the serial number is reset and a new directory 233 is generated, in which a map file 239, an image file 240, a reduced image file 241, image files 280, 282, 284 using three consecutive characters and reduced image files 281, 283, 285 or the like are stored.

Patent
31 Mar 1995
TL;DR: In this paper, the authors proposed a storage schedule directory for image data to reduce the complicated processing and managing work of operator when plural image files are stored scattering in the secondary memory devices of plural image processing terminals.
Abstract: PURPOSE:To reduce the complicated processing and managing work of operator when plural image files are stored scattering in the secondary memory devices of plural image processing terminals. CONSTITUTION:Storing schedule directories for image data are generated in the magnetic disk devices 2 of WSs #1-#4 as the image processing terminals in advance, and when the image data to be stored is generated, data amount is calculated, and it is discriminated whether or not it can be stored in a partition to which a corresponding storing schedule directory belongs. When it is discriminated that the image data can be stored, it is stored in the partition, and when it is not, the data is stored in the optimum partition by selecting from another partition in each magnetic disk device 2. Furthermore, the image data can be managed as if it is stored in the storing schedule directory even when the image data is stored in the partition different from the storing schedule directory by setting link information which regulates a data path between the partition in which the image data is stored actually and the corresponding storing schedule directory.

Patent
21 Mar 1995
TL;DR: In this paper, a method of calibrating a color image reproduction system in the field is described, which includes a color input scanner for generating a color digital image, a digital image processor for applying a color transform to the color digital images, and a digital color printer for printing the transformed digital images.
Abstract: A method of calibrating a color image reproduction system in the field is provided. The color image reproduction system includes a color input scanner for generating a color digital image, a digital image processor for applying a color transform to the color digital image to produce a transformed color digital image and, and a digital color printer for printing the transformed color digital image. The calibration method includes the steps of: a) providing a set of calibration tools developed on a representative system, the tools including a scanning target, a first reference file recording the response of a scanner to the scanning target in the representative system, an image file for producing a test pattern, and a second reference file recording the response of the scanner in the representative system to the test pattern printed on the printer in the representative system; and b) employing the calibration tools to calibrate the color image reproduction system in the field, by: 1) scanning the scanning target in the color scanner to produce a first test file; 2) employing the first test file and the first reference file, to generate a scanner calibration table; 3) sending the image file to the color printer to produce a second test pattern; 4) scanning the second test pattern in the color scanner and processing the output of the color scanner through the scanner calibration table to produce a second test file; and 5) employing the second test file and the second reference file to generate a printer calibration table.

Patent
Manfred Dipl Ing Stelzer1
20 Dec 1995
TL;DR: In this paper, an optical scan-line image scanning device (SCZ1) for scanning an original image and a display for reproduction of the facsimile images, pref. in reduced image format, is used in a phone network with at least one central station and a number of interconnected phone devices.
Abstract: The mobile telephone device has a at least a facsimile device partially integrated within it. An image processor with an image memory may also be integrated with the device. Provided with the facsimile device is an optical scan-line image scanning device (SCZ1) for scanning an original, and a display (D) for allowing reproduction of the facsimile images, pref. in reduced image format. The scan-line image scanning device is pref. coupled to an image processor receiving the image information line-by-line and transferring corresponding signals to an image memory. The device is used in a phone network with at least one central station and a number of interconnected phone devices.

Patent
31 Oct 1995
TL;DR: In this paper, a television system (100) and display method for receiving and displaying television broadcasts having various formats is described, where images are resized horizontally by altering the rate at which data is sampled by the television (100).
Abstract: A television system (100) and display method for receiving and displaying television broadcasts having various formats. The television system (100) resizes the various received image formats for display on a common display device. Images are resized horizontally by altering the rate at which data is sampled by the television (100). Images are resized vertically by using vertical scaling algorithms which alter the number of lines in an image. Format detection may be done automatically by decoding information contained in the vertical interval of the television broadcast signal, or by counting the number of lines in each frame. The input format may be indicated by a viewer.

Patent
22 Nov 1995
TL;DR: In this paper, a dithered bilevel image file is first compressed by analyzing blocks of pixels and counting the number of pixels that are turned on and represent a monochrome color (eg, black).
Abstract: A dithered bilevel image file 68 is first compressed by analyzing blocks of pixels and counting the number of pixels that are turned on and represent a monochrome color (eg, black) A compressed file 72 is created containing block pixel counts for all blocks in the dithered bilevel image file Subsequently, the block pixel count file is decompressed 108 by using the block pixel counts for all of the blocks to randomly select predetermined block pixel patterns from a plurality of pixel pattern sets 110 Each pattern set includes a plurality of different block pixel patterns that present a range of different grey tone levels ranging from completely black to completely white The pattern sets are used to create a transformed bit mapped image file 112 that can then be printed or displayed

Patent
04 Aug 1995
TL;DR: In this article, a retrieval sample image file is retrieved out of a thumbnail data storing part 14 after acquisition of a retrieval file queue and then a thumbnail list is shown on a display screen.
Abstract: PURPOSE:To shorten the processing time required for retrieval of a desired image to be retrieved on a thumbnail screen and for depressing and displaying the retrieved image. CONSTITUTION:In a display process, a retrieval sample image file is retrieved out of a thumbnail data storing part 14 after acquisition of a retrieval file queue and then a thumbnail list is shown on a display screen. In a depression process, the corresponding compressed image file stored in an original image data storing part 15 is successively depressed based on the retrieval file queue when a file management part 9 starts to retrieve the sample image file. Then an OS simultaneously starts both display and depression processes and reads the depressed image file corresponding to the selected sample image file out of a depressed image data storing part 12 to show the file on the display screen.

Proceedings ArticleDOI
21 Oct 1995
TL;DR: A set of applications has been developed for volumic medical image display and analysis in PET and MRI, as a implementation in X-Windows of a package previously developed at CTI under SunView, major improvements have been added to its functionality.
Abstract: A set of applications has been developed for volumic medical image display and analysis in PET and MRI. Although the set may appear at first glance, as a implementation in X-Windows of a package previously developed at CTI under SunView, major improvements have been added to its functionality. All graphical user interfaces have been developed with InterViews, a public domain C++ library on top of X-Windows, in an effort to standardize the look and feel of all applications. They run on SUN/Spare and Digital UNIX workstations and support CTI ECAT and Interfile image formats. They are presently used on a daily basis for multimodal image display and analysis in the authors' laboratory. These applications are: (i) iv-colortool: a color lookup table server for multimodality image display which can be loaded with external tables when displaying fusion data, (ii) iv-volumetool: an orthogonal viewer which allows visualization of multiframe volumes as large as whole body studies. Multiple instances of the application can be created with linked cursors, a useful feature for visualizing coregistered studies, (iii) iv-heartool: an orthogonal viewer which allows heart volume reorientation along the long axis and generation of short axis slices on multiframe studies and (iv) iv-brain-align: an orthogonal viewer which allows rigid transformation of dynamic multi-tracer brain data. All applications can be controlled through a command language interface using UNIX keywords to control input/output and parameters. This feature allows their direct use from acquisitions scripts on CTI PET scanners controlled with System 7.