Showing papers on "Image conversion published in 2007"

Arrangement and method for the recording and display of images of a scene and/or an object

Abstract: The invention relates to an arrangement and a method for the recording and display of images of a scene and/or an object. They are suitable especially for the spatially perceived display of the recorded images. The problem of finding a new way of recording, with the least possible effort, images of real scenes or objects and subsequently displaying them three-dimensionally in two or more views by autostereoscopy is solved, according to the invention, in such a way that at least one main camera of a first camera type and at least one satellite camera of a second camera type are provided for the recording of images, with an image conversion device and a 3D image display device being arranged downstream of the cameras. The two camera types differ in at least one parameter; and a total of at least three cameras are provided. The invention also comprises a method for the transmission of 3D information.

Driving Support System And Vehicle

Abstract: PROBLEM TO BE SOLVED: To correct the deviation of an image when a camera is installed in a vehicle in such a state that the camera is deviated from the center of the rear part of the vehicle, or the optical axial direction of the camera is deviated from the traveling direction of the vehicle. SOLUTION: A vehicle in which a camera is installed at the rear end of the body is arranged at the center of parking sections divided by two parallel white lines, and one-end points of the respective white lines are set within a visual field of the camera. While the vehicle is traveling forward, first and second images for calibration are acquired from the camera at mutually different first and second spots, and two end points are detected as total four featured points P1a, P1b, P2a and P2b from each image for calibration. An image conversion parameter for matching a body center line 232 with an image center line 231 is calculated based on coordinate values of the four featured points on each image for calibration, and an output image is acquired by using the image conversion parameter. COPYRIGHT: (C)2009,JPO&INPIT

Image playback device

Abstract: Conventionally, there has been a problem that a viewer is tired when playing back images mixedly including 2D images and 3D images, because images change frequently. A storage part stores 2D images and 3D images, an image conversion part that converts the 2D image stored in the storage part into a new 3D image, and an image output part that outputs the 3D image stored in the storage part and the new 3D image converted by the image conversion part. Consequently, it is possible to prevent a viewer from tiring when playing back images mixedly including 2D images and 3D images.

Context aware image conversion method and playback system

Abstract: The embodiments of invention provide method and apparatus for converting one or more images for display on a display surface. The output image is obtained from an input image. We scale the input image to generate a foreground image, in which a content of the foreground image corresponds directly to a content of the input image, and in which a resolution of the foreground image when displayed is smaller than a resolution of a display surface. The input image is also transformed to a background image, in which a content of the background image depends indirectly on the input image, and in which a resolution of the background image is larger than the resolution of the foreground image. Next, the foreground image is combined with the background image to form the output image, in which pixels of the foreground image replace corresponding pixels of the background image.

Digital photo frame, and image display method thereof

Abstract: PROBLEM TO BE SOLVED: To provide a digital photo frame and image display method thereof, in which display of an image is automatically controlled to efficiently browse the image. SOLUTION: The digital photo frame 1 includes: an image display unit 12 which is electronically rewritable; a memory 16 for storing an image file; a playback unit 22 which is connected to the image display unit 12 and the memory 16, for reading the image file stored in the memory and displaying it on the image display unit 12; and an image conversion unit 18 connected to the playback unit 22, for at least partially performing monochromatic conversion upon data of the image file. The playback unit 22 refers to a date of photographing of the image file read from the memory 16. When the lapse of time from a date of creation to the present exceeds a predetermined value, monochromatic conversion is performed at least partially upon data of the image file by the image conversion unit 18, and the data are then displayed on the image display unit 12. COPYRIGHT: (C)2009,JPO&INPIT

A Modified Cross Correlation in the Frequency Domain for Fast Pattern Detection Using Neural Networks

Abstract: Recently, neural networks have shown good results for detection of a certain pattern in a given image. In our previous papers (1-5), a fast algorithm for pattern detection using neural networks was presented. Such algorithm was designed based on cross correlation in the frequency domain between the input image and the weights of neural networks. Image conversion into symmetric shape was established so that fast neural networks can give the same results as conventional neural networks. Another configuration of symmetry was suggested in (3,4) to improve the speed up ratio. In this paper, our previous algorithm for fast neural networks is developed. The frequency domain cross correlation is modified in order to compensate for the symmetric condition which is required by the input image. Two new ideas are introduced to modify the cross correlation algorithm. Both methods accelerate the speed of the fast neural networks as there is no need for converting the input image into symmetric one as previous. Theoretical and practical results show that both approaches provide faster speed up ratio than the previous algorithm.

Image-capturing apparatus, image processing method and program product

Abstract: An image-capturing apparatus includes an image-acquiring unit which acquires an image that is captured by photographing a photographic subject which is laid on an arbitrary place, a difference image producing unit which produces a difference image between the captured image that is acquired by the image-acquiring unit and an image which is captured before the photographic subject is laid, a contour extraction unit which extracts contour information of the photographic subject from the difference image that is produced by the difference image producing unit, and an image conversion unit which corrects a distortion of the captured image on the basis of the contour information that is extracted by the contour extraction unit.

Medical Image Conversion with DICOM

Abstract: As the standard especially for the storage and transmission of medical images, the standard of Digital Imaging and Communications in Medicine (DICOM) is popular to the people of the world. And as a result, almost all the outputs of the computerized tomography (CT), magnetic resonance (MR), digital subtraction angiography (DSA) and ultrasonography (US) are saved as DICOM format. However, the DICOM format files can be opened by the original programs of windows OS, which is not convenient with the further research in image processing. The paper mainly does some research in the conversion from DICOM format files into general image/ media files. The procedure is to convert DICOM format files into bitmaps and then convert the bitmaps into other general image/ media files. The images then can be viewed directly by the original programs of Windows OS, which will facilitate the further researches on image process. The DICOM format files can be displayed while being converted; the images displayed can also be done with some further operations, such as the process of lightness and contrast gradient of image, image filtering and segmentation.

Adaptive multi picture dividing device

Abstract: The invention comprises: a multi-route input unit; a multi-group video decoder; a multi-group image quality improvement and image conversion unit used for processing the image signals from each route; a memory used for saving the decoded and converted images; multi-group encode and output unit used for encoding and outputting the images saved in the memory to a display; and a MPU connected to the memory, video decoding unit, image quality improvement and image conversion unit, and the multi-group encode and output unit, and used for controlling the working of each said functional units.

Image processing apparatus and control method thereof

Abstract: PROBLEM TO BE SOLVED: To provide an image conversion technology capable of converting moving image data into the moving image data having a higher frame rate. SOLUTION: Low-frequency image data is produced by an LPF1 from image data of inputted one frame, and high-frequency emphasized image data is produced by using a subtractor 2 and an adder 3. The low-frequency image data of inputted interest frame is contracted on a Size-Down part 11. Motion detection and motion application are performed from contracted image data of the interest frame and contracted image data of the next frame by a motion detection/motion application part 13, and contracted image data temporally located in the middle is produced. The produced contracted image data is enlarged up to the size before contraction by a Size-Up part 14. The enlarged image data is filtered by an LPF15 and the result is outputted as low-frequency image data for output. The high-frequency emphasized image data and the low-frequency image data for output are alternately outputted at a speed twice the input frame rate by a switch 5. COPYRIGHT: (C)2009,JPO&INPIT

Comparison of image conversions between square structure and hexagonal structure

Abstract: Hexagonal image structure is a relatively new and powerful approach to intelligent vision system. The geometrical arrangement of pixels in this structure can be described as a collection of hexagonal pixels. However, all the existing hardware for capturing image and for displaying image are produced based on rectangular architecture. Therefore, it becomes important to find a proper software approach to mimic hexagonal structure so that images represented on the traditional square structure can be smoothly converted from or to the images on hexagonal structure. For accurate image processing, it is critical to best maintain the image resolution after image conversion. In this paper, we present various algorithms for image conversion between the two image structures. The performance of these algorithms will be compared though experimental results.

Control device for electronic apparatus, control method and control program

Abstract: PROBLEM TO BE SOLVED: To improve operability by improving visibility of an image for operation of an operating button or the like, in an electronic apparatus in which the operating button is operated by holding a hand over the operating button displayed on a display device. SOLUTION: A mirror image converting section 13 performs mirror image conversion on an image signal captured by a video camera 2. An image for operation including one or more operation windows including an operating button is produced by an operation image producing section 15. The image signal obtained through the mirror image converting section 13 and an image signal of the operation image are mixed in a mixing section so that areas, shapes and coordinate positions thereof are approximately equal, to produce a mixed image. The mixed image is then displayed on a screen of a display device 21. While the mixed image is displayed on the screen, predetermined selecting operation for an operator imaged by the video camera and displayed on the screen to select any operating button is detected by a detection section, thereby performing control operation corresponding to the detected operating button. COPYRIGHT: (C)2009,JPO&INPIT

Vehicle surrounding image providing apparatus

Abstract: PROBLEM TO BE SOLVED: To provide a "vehicle surrounding image providing apparatus" capable of enlarging and displaying an image of portions relating an obstacle which has high risk among a plurality of obstacles around a vehicle, and its own vehicle. SOLUTION: A vehicle surrounding image providing apparatus comprises: a display means; an imaging means for capturing an image surrounding its own vehicle 41; a storage means for storing data of the image captured by the imaging means; an image conversion means for generating, from the image around its own vehicle 41 and an image of its own vehicle 41, a down shot image viewing its own vehicle 41 from an upper virtual viewpoint; an obstacle detecting means for detecting obstacles (42, 43); and a control means for changing a reduction scale so as to display a mobile 42 at an edge of the down shot image when the obstacle (42, 43) is determined as the mobile 42. When it is determined that a plurality of mobiles 42 exist, the control means may also change the reduction scale so as to display a mobile 42 closest to its own vehicle 41 at the edge of the down shot image. COPYRIGHT: (C)2009,JPO&INPIT

Challenges in 3DTV image processing

Abstract: Philips provides autostereoscopic three-dimensional display systems that will bring the next leap in visual experience, adding true depth to video systems. We identified three challenges specifically for 3D image processing: 1) bandwidth and complexity of 3D images, 2) conversion of 2D to 3D content, and 3) object-based image/depth processing. We discuss these challenges and our solutions via several examples. In conclusion, the solutions have enabled the market introduction of several professional 3D products, and progress is made rapidly towards consumer 3DTV.

White line detector and white line detection method

Abstract: PROBLEM TO BE SOLVED: To precisely detect a white line drawn on a road face, based on a picked-up image obtained by imaging the road face in the periphery of a vehicle. SOLUTION: An image conversion part 21 converts the picked-up image of the road face into a lookdown image of viewing the road face from just above, a white line candidate pixel searching part 22 searches a white line candidate pixel indicating the white line drawn on the road face in the lookdown image, a white line detecting part 23 regulates weighting for the white line candidate pixel to remove an error influence generated when converting the picked-up image into the lookdown image, when finding an approximate straight line from the white line candidate pixel, and detects the white line, based on the approximate straight line found from the white line candidate pixel after weight-regulated, and the white line drawn on the road face is precisely detected thereby. COPYRIGHT: (C)2009,JPO&INPIT

Image processing method, image processor, image processing program and computer-readable recording medium with the program recorded thereon

Abstract: PROBLEM TO BE SOLVED: To provide a technology for accurately detecting an object, and for surely protecting it when illuminating circumstances change, and an object in an image temporarily stops even when protecting the privacy of the object photographed by a fixed image pickup device. SOLUTION: This image processor is provided with a first storage means for storing the estimated image of a background image, and configured to evaluate a difference between an input image and an estimated background image to extract the image section of the object. Even when it is impossible to extract the image section of the object, the input image is registered in a second storage means as a reference background image, and when the image section is extracted, the estimated background image stored in the first storage means is updated based on the input image and the estimated background image stored in the first storage means and the reference background image stored in the second storage means so that the background image stored in the first storage means is regarded as a current image. Then, image conversion for privacy protection is applied to the extracted image section of the object. COPYRIGHT: (C)2008,JPO&INPIT

General methods for L/M-fold resizing of compressed images using lapped transforms

Abstract: Two general methods are proposed for the arbitrary L/M-fold resizing of compressed images using lapped transforms. These methods provide general resizing frameworks in the transform domain. In order to analyse the image size conversion technique using lapped transforms, the impulse responses and frequency responses for the overall system are derived and analysed. This theoretical analysis shows that the image resizing in the lapped transform domain provides much better characteristics than the conventional image resizing in the discrete cosine transform (DCT) domain. Specifically, by using lapped transforms, the proposed method reduces the blocking effect to a very low level for images which are compressed at low bit rates, since two neighbouring DCT blocks are used in the conversion process, instead of processing each block independently.

A video communication system and method

Abstract: This invention discloses a video communication system used in video transmission among terminals, each of which includes a video collection unit collecting real time video, a collecting unit used in getting substitution regions from the real-time video collected by the video collecting unit, an image storing unit storing images, an image converting unit used in converting the substitution regions got by the collecting unit to images in the image storing unit, a coding unit editing real-time video converted by the image conversion unit and a data transmitting unit used in transmitting the data edited by the edition unit to a receiving terminal. This invention also discloses a corresponding video communication method.

Motion adaptive image processing

Abstract: A method of image processing for image conversion, comprises the steps of calculating a difference measure of the difference in pixel values between corresponding blocks of a current image field and a preceding image field, calculating a variability measure of the variability of pixel values from at least one of said corresponding blocks, determining whether the difference measure exceeds the variability measure, and if the difference measure exceeds the variability measure, then setting an inter-image mixing value for each pixel in the corresponding block of the current image field to indicate that the current image field should not be mixed with the preceding image field at that pixel position.

Apparatus for encoding and decoding image, and method theroff, and a recording medium storing program to implement the method

Abstract: An image encoding and decoding apparatus, a method therefor, and a recording medium in which a program for executing the same is recorded are provided to improve a compression rate of an image by dividing the image for performing intra coding into a plurality of sub-planes having a similar characteristic, performing the image conversion and quantization of the divided sub-planes, and predicting TQ coefficients obtained by the image conversion and quantization. An image dividing unit(410) divides an input image into at least one or more sub-planes. An image conversion and quantization unit, having a converting unit(420) and a quantizing unit(430), performs the image conversion and quantization of the divided sub-planes. An intra prediction encoding unit performs an intra prediction of at least one of the sub-planes in which the image conversion and quantization is performed. An inter prediction encoding unit performs an inter prediction for at least one of the other sub planes in which the image conversion and quantization is performed by using the sub-plane in which the intra prediction is performed as a reference plane.

Image conversion apparatus and image conversion method

Abstract: PROBLEM TO BE SOLVED: To provide an image conversion technique for converting the image rendered by a graphic processor to an image compatible with the specification of a display. SOLUTION: An image conversion part 35 converts the image rendered at a given vertical synchronous frequency by a rendering processing part 32 into the image compatible with the specification of the display. A frame memory 47 holds the image converted by the image converter 35 while performing switching of a plurality of buffers. A display controller 50 selects one of the buffers in accordance with the vertical synchronous frequency of the display, and scans out the image from the frame memory 47 accordingly. A switch instruction issuing part 14 issues a frame buffer switch instruction for designating a frame buffer to be scanned out next, not immediately after the execution of an image conversion process by the image conversion part 35, but in synchronization with the vertical synchronous frequency of the display. COPYRIGHT: (C)2008,JPO&INPIT

Image display apparatus and image display method

Abstract: Disclosed herein is an information display apparatus for displaying an image received from an image supplying source on an image display section after carrying out a conversion process on the image in an image conversion section employed in the information display apparatus on demand. The information display apparatus may include a timing storage section, an image determination section, and an output-path switching section.

Vehicle driving support apparatus

Abstract: PROBLEM TO BE SOLVED: To provide a vehicle driving support apparatus for accurately checking the position of an object. SOLUTION: The vehicle driving support apparatus 100 is provided with: cameras 10a to 10b for photographing surroundings of a vehicle; a top-view image conversion part 20 for generating a top-view image projecting a road surface on the basis of a photographed side view image; a three-dimensional object detection part 30 for detecting a three-dimensional object included in a redundant area of the top-view image corresponding to each of the cameras; a three-dimensional object position detection part 32 for detecting a horizontal position on the road surface of the detected three-dimensional object; a three-dimensional object correction part 34 for correcting the position of the three-dimensional object by using the horizontal position of the detected three-dimensional object; and a display processing part 42 and display 44 for displaying the top-view image including a three-dimensional object with position corrected. COPYRIGHT: (C)2007,JPO&INPIT

Apparatus, method, and program for projection of 3D spatial image into planar images using visual points

Abstract: Disclosed herein is a display control apparatus which may include an image conversion unit, a display unit, a point specifying unit, and a visual-point position setting unit.

Image display device

Abstract: PROBLEM TO BE SOLVED: To provide an image display device which has a large screen where a powerful image with rich presence can be displayed, has high productivity, and can have a screen of desired size suitably set SOLUTION: The image display device is composed of: a plurality of panel units capable of displaying images; connection parts electrically connecting the unit panels to one another; a recognition unit which recognizes the number and positions of the unit panels connected by the connection parts; a reception unit which receives image data from outside; an image conversion unit which converts the image data received by the reception unit into pixel data corresponding to the number of the unit panels recognized by the recognition unit; and a display control unit which performs control to display an image of one screen on the plurality of unit panels by displaying images based upon the pixel data generated by the image conversion unit at corresponding positions of the unit panels recognized by the recognition unit COPYRIGHT: (C)2008,JPO&INPIT

Stereo-scopic image conversion panel and stereo-scopic image display apparatus having the same

Abstract: A stereo-scopic image conversion panel and a stereo-scopic image display device having the same are provided to selectively change a planar image into a stereo-scopic image through the stereo-scopic image conversion panel, by making a stereo-scopic image conversion unit of transparent conductive materials, and thus reducing the thickness of the stereo-scopic image display device. A stereo-scopic image conversion panel(100) is composed of a first transparent substrate(110); a second transparent substrate(120) facing the first transparent substrate; a transparent electrode unit(130) formed on the first transparent substrate to face the second transparent substrate; a stereo-scopic image conversion unit(140) interposed between the transparent electrode unit and the second transparent substrate, provided with plural concave lenses(142), and made of transparent conductive materials; and a lens liquid crystal layer(150) contained in the concave lenses, disposed between the transparent electrode unit and the stereo-scopic image conversion unit, and composed of liquid crystals having an anisotropic refractive index. An arrangement form of the liquid crystals contained in the concave lenses is changed according to an electric field generated between the transparent electrode unit and the stereo-scopic image conversion unit to selectively change a planar image into a stereo-scopic image.

Image processing system, imaging device, and output device

Abstract: In a system built from an imaging device and an output device, camera shake compensation is performed while processing load imposed on the imaging device is being lessened. An image processing system is built from a digital camera and a printer. Image data pertaining to a subject are recorded in a recording medium. Further, the amount of blurring of the digital camera is detected by means of a gyroscopic sensor, and PSF data are recorded in the recording medium. The printer is equipped with an image conversion section, a PSF conversion section, and an image restoration section, and a resolution of the image data and a resolution of the PSF data are converted, thereby restoring an original image.

Image processing method and apparatus

Abstract: The generation of an N-dimension look-up table used (N≧2) in conversion processing of input image data includes acquiring a value of the input image data for every channel corresponding to a respective dimension of the N-dimension look-up table by analyzing the input image data to be processed, determining an input value range of each dimension of the N-dimension look-up table based upon the acquired value, arranging a predetermined number of grid points in the determined input value range with regard to each dimension of the N-dimension look-up table, and setting an output value of each arranged grid point based upon desired image conversion processing.

Image converter, image providing system, photographing editing device, image conversion method, image conversion program, and recording medium recorded with program

Abstract: PROBLEM TO BE SOLVED: To allow conversion into an image having another aspect ratio, while maintaining an outward appearance. SOLUTION: An aspect ratio conversion part 17 executes the conversion into the edition image having an aspect ratio of a screen size of a cellular phone, by deleting or adding a noncharacteristic portion that is a portion not including a form characterizing the edition image and that is a portion extended vertical-directionally or lateral-directionally up to both ends. A transmission image preparing part 15 extracts a portion adaptive to the aspect ratio from a photographed image, and prepares a transmission image by composing the extracted portion with the edition image converted by the aspect ratio conversion part 17. COPYRIGHT: (C)2009,JPO&INPIT

Method, device and program for estimating spectral reflectance

Abstract: PROBLEM TO BE SOLVED: To provide a method, a device and a program for estimating spectral reflectance with which spectral reflectance unique to a subject, without having to depend on the light source of an image input apparatus or in image input is estimated and calculated at low cost, simply and with high accuracy, without requiring a dedicated apparatus and thus, a defined spectral reflectance image is acquired. SOLUTION: The device for estimating the spectral reflectance has an analysis means for inputting an image file obtained by a digital camera 3, generating a channel-number virtual increase module for virtually increasing the number of channels of image data and determining the linear coupling coefficient calculation matrix used, when the image data in which the number of channels is increased is converted into the spectral reflectance image and an image conversion means for converting the image data into spectral reflectance image data. COPYRIGHT: (C)2007,JPO&INPIT