Showing papers on "Image file formats published in 2010"

JPEG Error Analysis and Its Applications to Digital Image Forensics

Abstract: JPEG is one of the most extensively used image formats. Understanding the inherent characteristics of JPEG may play a useful role in digital image forensics. In this paper, we introduce JPEG error analysis to the study of image forensics. The main errors of JPEG include quantization, rounding, and truncation errors. Through theoretically analyzing the effects of these errors on single and double JPEG compression, we have developed three novel schemes for image forensics including identifying whether a bitmap image has previously been JPEG compressed, estimating the quantization steps of a JPEG image, and detecting the quantization table of a JPEG image. Extensive experimental results show that our new methods significantly outperform existing techniques especially for the images of small sizes. We also show that the new method can reliably detect JPEG image blocks which are as small as 8 × 8 pixels and compressed with quality factors as high as 98. This performance is important for analyzing and locating small tampered regions within a composite image.

Light Field Camera Image, File and Configuration Data, and Methods of Using, Storing and Communicating Same

Abstract: Certain devices and methods are directed to acquiring, generating and/or outputting image data corresponding to a scene. In one aspect, the method comprises (i) acquiring light field data which is representative of a light field from the scene, (ii) acquiring configuration data which is representative of how light rays optically propagate through the data acquisition device (used to acquire the light field data), (iii) generating first image data using the light field data and the configuration data, wherein the first image data includes a focus or focus depth that is different from a focus or focus depth of the light field data, (iv) generating a first electronic data file including (a) the first image data, (b) the light field data, and (c) the configuration data, and (v) outputting the first electronic data file.

Image display device

Abstract: An image display device includes an image display panel including a plurality of pixels configured to display a 2D image or a 3D image, a driving circuit configured to apply a data voltage in a 2D image format or a data voltage in a 3D image format to the image display panel, a controller configured to control the driving circuit in a 2D mode for displaying the 2D image or in a 3D mode for displaying the 3D image, and a patterned retarder configured to convert light from the image display panel to alternately have a first polarization and a second polarization, wherein each pixel includes first to fourth subpixels, and the data voltage in the 2D image format is applied to the first to third subpixels and a luminance compensation voltage is applied to the fourth subpixel in the 2D mode, while the data voltage in the 3D image format is applied to the first to third subpixels and a dark gray voltage is applied to the fourth subpixel in the 3D mode.

A data file having more than one mode of operation

Abstract: A data file having more than one modes of operation. The data file comprises an image component for storing an image as a representation of the data file and one or more data components appended to the image component. The image component comprises metadata associated with the one or more data components. In a first mode of operation, the image component of the data file is readable for viewing the image by an image viewer while the image component is part of the data file. The one or more appended data components are unreadable by the image viewer in the first mode of operation. In a second mode of operation, the image component and the one or more appended data components are readable by a file reader.

Auto-Tagging In Geo-Social Networking System

Abstract: In one embodiment, a social networking system automatically tags one or more users to an image file by creating a list of potential matches, and selecting a subset of potential matches based on location, asking a first user to confirm the subset of potential matches, and tagging one or more matched users to the image file.

On demand virtual machine image streaming

Abstract: On demand image streaming (ODS), in one aspect, may perform both copy-on-write and copy-on-read to gradually bring data on remote storage server to a host's local disk. Prefetching may be performed during the time the resources are otherwise idle to bring in data from the remote storage server to the host's local disk. A new image format and the corresponding block device driver for a hypervisor or the like may be also provided. ODS' image format may include a header and a bitmap that indicates whether the data sectors are on local disk or remote storage server, and an image content, for instance, stored in raw format.

Image processing apparatus and related control method

Abstract: An image processing apparatus captures an image in a shooting operation and records an image file in a folder of a recording medium. A user interface enables a user to set the units of date/time for automatically creating a new folder that can store image files. A first storage unit stores the units of date/time being set by the user through the user interface. A folder creation unit creates a new folder in the recording medium by the units of date/time stored in the first storage unit. And, a recording unit records the image file obtained by the shooting operation in the new folder created by the folder creation unit.

Burst mode image compression and decompression

Abstract: Modified compression/decompression and metadata in burst mode images reduce the storage space consumed by burst mode images. Metadata is added to image files (e.g., EXIF files) to establish links between images in a burst mode image series. A series of linked burst mode images can include delta images representing a temporal difference between the image data (e.g., pixel data) for two burst images captured at different time instances. Difference information can be compressed. A root image for a linked burst mode series can be identified and used as a reference for other burst images. Metadata can be added to image files to link burst images prior to compression, after compression, or at an intermediate stage of compression of image data. Difference information for delta image files can be derived prior to compression, after compression, or at an intermediate stage of compression of image data.

It's all about the format-unleashing the power of RAW aerial photography

Abstract: Current one-shot, handheld Digital Still Cameras (DSCs) generally offer different file formats to save the captured frames: Joint Photographic Experts Group (JPEG), RAW and/or Tag(ged) Image File Format (TIFF). Although the JPEG file format is the most commonly used file format worldwide, it is incapable of storing all original data, something that also occurs, to a certain extent, for large TIFF files. Therefore, most professional photographers prefer shooting RAW files, often described as the digital photography's equivalent of a film negative. As a RAW file contains the absolute maximum amount of information and original data generated by the sensor, it is the only scientifically justifiable file format. In addition, its tremendous flexibility in both processing and post-processing also makes it beneficial from a workflow and image quality point of view. On the other hand, large file sizes, the required software and proprietary file formats remain hurdles that are often too difficult to overcome for many photographers. Aerial photographers who shoot with handheld DSCs should be familiar with both RAW and other file formats, as their implications cannot be neglected. By outlining the complete process from photon capture to the generation of pixel values, additionally illustrated by real-world examples, the advantages and particularities of RAW aerial photography should become clear.

Image processing device, image processing method, and program

Abstract: An image processing apparatus includes: an imaging unit configured to generate an imaged image by imaging a subject; a depth information generating unit configured to generate depth information relating to the imaged image; an image processing unit configured to extract, from the imaged image, an image of an object region including a particular subject out of subjects included in the imaged image and a surrounding region of the subject, based on the depth information, and generate a difference image to display a stereoscopic image in which the subjects included in the imaged image are viewed stereoscopically based on the extracted image; and a recording control unit configured to generate a data stream in which data corresponding to the imaged image and data corresponding to the difference image are correlated, and record the data stream as a moving image file.

Image alignment and trend analysis features for an infrared imaging system

Abstract: In one embodiment, a thermographic imaging device having a visual compare mode that allows a user to compare a live image of a subject to a previously captured image of the same subject to aid the user in aligning the live image with the previously captured image. In this manner, a user can capture a series of images of the subject with the device located and oriented at a common location and orientation that is consistent throughout the series. In another embodiment, trend analysis software that includes a thermographic tool copying feature for copying one or more thermographic tools from a tooled thermographic image file to one or more non-tooled thermographic image files. In some embodiments, the software includes a trend-graphing feature that generates one or more trend plots after one or more tools have been copied to one or more non-tooled thermographic image files.

Systems and methods for converting and delivering medical images to mobile devices and remote communications systems

Abstract: A system for automated conversion and delivery of medical images, comprises a server coupled with a data storage system and a communication interface, the server configured to: receive a medical image file via the communications interface, the medical image file comprising medical data and meta data, the medical data having a medical data format that complies with the digital imaging and communication in medicine standard, determine whether the medical data includes a medical image data, determine an output destination type, wherein the output destination type is an output device, service, or both, based on the meta data, correlate the output destination type with one or more of the plurality of standardized format specifications and with one or more of the plurality of message templates, convert the medical data format associated with the medical data based on the standardized format specifications that correlate with the output destination type, assemble at least one output message that includes the converted medical data based on the message templates that correlate with the output destination type, and transmit the output message to at least one destination via the communication interface.

Applied Medical Image Processing: A Basic Course

Abstract: List of Figures List of Tables Foreword Preface to the First Edition Preface to the Second Edition User Guide Acknowledgments Chapter 1: A Few Basics of Medical Image Sources Radiology The Electromagnetic Spectrum Basic X-Ray Physics Attenuation and Imaging Computed Tomography Magnetic Resonance Tomography Ultrasound Nuclear Medicine and Molecular Imaging Other Imaging Techniques Radiation Protection and Dosimetry Summary and Further References Chapter 2: Image Processing in Clinical Practice Application Examples Image Databases Intensity Operations Filter Operations Segmentation Spatial Transforms Rendering and Surface Models Registration CT Reconstruction Summary Chapter 3: Image Representation Pixels and Voxels Gray Scale and Color Representation Image File Formats DICOM Other Formats - Analyze 7.5, NIfTI, and Interfile Image Quality and the Signal-to-Noise Ratio Practical Lessons Summary and Further References Chapter 4: Operations in Intensity Space The Intensity Transform Function and the Dynamic Range Windowing Histograms and Histogram Operations Dithering and Depth Practical Lessons Summary and Further References Chapter 5: Filtering and Transformations The Filtering Operation The Fourier Transform Other Transforms Practical Lessons Summary and Further References Chapter 6: Segmentation The Segmentation Problem ROI Definition and Centroids Thresholding Region Growing More Sophisticated Segmentation Methods Morphological Operations Evaluation of Segmentation Results Practical Lessons Summary and Further References Chapter 7: Spatial Transforms Discretization - Resolution and Artifacts Interpolation and Volume Regularization Translation and Rotation Reformatting Tracking and Image-Guided Therapy Practical Lessons Summary and Further References Chapter 8: Rendering and Surface Models Visualization Orthogonal and Perspective Projection, and the Viewpoint Raycasting Surface-Based Rendering Practical Lessons Summary and Further References Chapter 9: Registration Fusing Information Registration Paradigms Merit Functions Optimization Strategies Some General Comments Camera Calibration Registration to Physical Space Evaluation of Registration Results Practical Lessons Summary and Further References Chapter 10: CT Reconstruction Introduction Radon Transform Algebraic Reconstruction Some Remarks on Fourier Transform and Filtering Filtered Backprojection Practical Lessons Summary and Further References Chapter 11: A Tutorial on Image Guided Therapy A Hands-On Approach to Camera Calibration and Image-Guided Therapy Transformations Camera Calibration Image-Guided Therapy, Introduction Image-Guided Therapy, Navigation System Image-Guided Therapy, Theory in Practice Summary Chapter 12: A Selection of MATLAB(R) Commands Control Structures and Operators I/O and Data Structures Mathematical Functions Further References Index

Data delivery apparatus and data delivery method

Abstract: A data delivery apparatus includes a first obtaining section, a second obtaining section, and a delivery section. The first obtaining section obtains a master image. The master image is a first image file generated from master data used in common for constructing different systems in the plurality of information processing apparatuses. The second obtaining section obtains a difference image. The difference image is a second image file generated from difference data specifying details of modification to the master data to construct an individual system. The delivery section delivers the master image and the difference image to the plurality of information processing apparatuses over a network.

Composite phase-shifting algorithm for three-dimensional shape compression

Abstract: With recent advancements in 3-D imaging and computational technologies, acquiring 3-D data is unprecedentedly simple. However, the use of 3-D data is still limited due to the size of 3-D data, especially 3-D video data. Therefore, the study of how to store and transmit the 3-D data in real time is vital. We address a technique that encodes a 3-D surface shape into a single 24-bit color image. In particular, this image is generated by advanced computer graphics tools with two primary color channels encoded as sine and cosine fringe images, and the third chan- nel encoded as a stair image to unwrap the phase obtained from the two fringe images. An arbitrary 3-D shape can then be recovered from a single image. We test 3-D shapes with differing levels of complexity along with various image formats. Experiments demonstrate that, without significantly losing the shape quality, the compression ratio can go up to 1:36.86, compared with the native smallest possible 3-D data represen- tation method. © 2010 Society of Photo-Optical Instrumentation Engineers. DOI: 10.1117/1.3456632

System, method, and computer readable medium for creating a video clip

Abstract: A system, method, and computer readable medium for creating a video clip comprises receiving still image files by a first module, creating a copy of a still image from the still image files with reduced dimensions by the first module, creating a new still image from a selected area of the still image, storing the new still image and the copy of the still image with a unified file name, ordering the stored images, creating an audio file by at least one of a second module and a third module, creating a timeline, by the first module, related to the ordered images and the created audio, and rendering the timeline into the video clip by a fourth module.

Data processing apparatus, program, and recording medium

Abstract: Disclosed is a data processing apparatus including an application execution unit that transmits job data; a virtual printer driver unit that is invoked upon receiving the job data from the application execution unit, extracts job information data specifying print setting from the job data, generates a work space to perform image conversion for each job, and generates drawing data of a higher image format from the job data in the work space; and a transmission processing unit that is generated as a private instance corresponding to the job data and instructs a printer driver of a transmission destination, which is determined as the transmission destination corresponding to the job data, to print the drawing data of the higher image format under the print setting specified by the job information data so as to generate output data containing raster data compatible with a printer of the transmission destination.

Image file generation device, image processing device, image file generation method, image processing method, and data structure for image files

Abstract: Hierarchical data in which image data that represents an image at different resolutions is arranged according to the resolution comprises three types of data including a header, index blocks, and tile images. The header defines a plurality of areas produced by dividing the pyramidal hierarchical structure in the virtual space in which the hierarchical data is generated. A pointer pointing to one of the index blocks is set in each area. The index blocks are generated for the respective areas in the structure defined by the header. A pointer pointing to one of the tile images is defined for a position in the images in a plurality of layers belonging to each area. The images are image data actually used to render an image.

Image File as Container for Widgets in GUI Authoring Tool

Abstract: A method for authoring a graphical user interface (GUI) includes providing a widget builder interface for editing a template widget and receiving user input of widget properties for the template widget. The widget properties including a widget type, one or more widget parameters, and one or more images. The method further includes saving the widget properties and the one or more images into a widget file conforming to a standard image file format.

A Perceptually Scalable and JPEG Compression Tolerant Image Encryption Scheme

Abstract: In this paper, a perceptually scalable and JPEG compression tolerant DCT-based image encryption scheme is proposed. There are two main features of the proposed scheme, first the decryption algorithm is able to reconstruct the plaintext-image even if the encrypted image is JPEG compressed. Secondly, the encryption algorithm can be adjusted to produce cipher-image with varying perceptual distortion. The proposed encryption scheme relies on some very interesting properties of orthogonal matrices containing columns that form a set of orthonormal basis vectors. It is envisaged that the proposed cryptosystem would enable uncompressed encrypted image files to be transmitted or stored in the JPEG compressed domain thus saving bandwidth and or storage space. Further, the proposed scheme can be used either for low-level encryption in which the cipher-image has a degraded visual quality but reflects the contents of the plaintext-image, or high-level encryption in which the cipher-image does not reveal any information about the plaintext-image. Experimental results and security analysis is presented to show the viability of the proposed scheme.

A Full-View Spherical Image Format

Abstract: This paper proposes a full-view spherical image format which is based on the geodesic division of a sphere. In comparison with the conventional 3D array representation which consists of five parallelograms, the proposed spherical image format is a simple 2D array representation. The algorithms of finding the neighboring pixels given a pixel of a spherical image and mapping between spherical coordinate and spherical image pixel are given also.

Image management method and system using thumbnail in DLNA system

Abstract: An image management method and system are disclosed which can increase user convenience by reducing a display time of thumbnails in a DLNA system. The DLNA system includes a digital media server for generating a thumbnail group image using thumbnails corresponding to at least one original image file and transmitting the thumbnail group image, and a digital media player for receiving the thumbnail group image from the digital media server and requesting the digital media server to transmit an original image file corresponding to a selected thumbnail among thumbnails included the thumbnail group image.

Systems and methods for barcode integration in packaging design and printing

Abstract: Methods and systems for barcode integration in packaging design and printing are described. The method includes receiving a request for a For Position Only (FPO) image file which is a placeholder for a final barcode. The method includes accessing barcode data, wherein the barcode data contains information usable to produce the final barcode, generating the FPO image file including an FPO image and including metadata containing the barcode data, and sending the FPO image file including the metadata to a second computer device. A final barcode can be generated from the metadata and by accessing at least one printing parameter of a prepress system, and the final barcode can be used to replace the FPO image file.

Image processing device, information recording medium, image processing method, and program

Abstract: Provided is a configuration to make it possible to obtain information required for a data process on stored data of an MP4 file from the management information of the MP4 file. It is configured to hierarchically arrange and record information to be applied to various data processes to be executed in a playback process of the data stored in the MP4 file, for example, various data processes in different categories, such as a three-dimensional image display process and a decoding process of encrypted data, in the management information of the MP4 file. This configuration makes it possible to securely obtain, from the management information of the MP4 file, various information required for each of the data processes in different categories, which are necessary to be executed in the playback of the data stored in the MP4 file, for example, a display process of encrypted three-dimensional image data, and a smooth data playback process becomes possible.

Transfer of digital medical images and data

Abstract: A system for distributing images creates a self-sufficient, self-consistent medical imaging and other medical information transfer file that contains image files and corresponding data sets that are bundled with an image viewer application. The medical image and data transfer file is prepared using object serialization and contains a deserialization application. The transfer file is created at an origination location and transmitted to a destination device as a packaged file over a computer network. The destination device receives the packaged file from the origination location and executes the viewer application with the image files and the data sets by opening the packaged file alone, without the need to run any other imaging/viewer application at the destination device. The viewer application has image viewing panes, an annotation tool, and image manipulation tools.

Method of encoding haptic information on image, method of decoding haptic information from image and apparatus of processing haptic information for the same

Abstract: Disclosed is a technology of encoding haptic information on images or decoding haptic information from images. The method of encoding the haptic information on the images according to the present invention includes: generating haptic information; generating encoding target data by using the haptic information and header information associated with the haptic information; and generating an encoded image by encoding the encoding target data by using a least significant bit (LSB) of byte data of each of the original image pixels. As a result, the present invention can simply encode/decode the haptic information while maintaining an original image format.

Imager that adds visual effects to an image

Abstract: An imager is provided having an imaging sensor, an image processor, and a recorder. The imaging sensor creates an image signal by photographing a subject. The image processor processes the image signal with visual effects processing so as to create image data, and adds metadata to the image data so as to create an image file. The metadata contains post-processing information includes information based on the visual effects process. The recorder stores the image file. The visual effects process is used in processing the image data. The image processor conducting a post process in which more than one visual effects process is carried out, a new image file is created, and the new image file is stored in the recorder. The post-processing information has a post-processing counter and pre-processing information. The post-processing counter indicates the number of times the post process is carried out. The pre-processing information represents the state of a preprocessed image file prior to post processing.