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| Number | Title | Issue Date |
| 7421134 | Image processing apparatus and method for moving object-adaptive compression An image processing apparatus is adapted to a surveillance camera system, and a CPU included in the surveillance camera system divides a plurality of continuous screens of an image signal into a plurality of blocks by each screen, and detects a specific object, whic... | 09/02/2008 |
| 7412151 | Detection of a watermark in a compressed video signal A method and arrangement for detecting a watermark embedded in an MPEG compressed signal includes a conventional MPEG decoder stripped to such an extent that a modified baseband video signal suitable for watermark detection is obtained. A plurality of pictures with ... | 08/12/2008 |
| 7376280 | Video encoding and decoding A method for encoding video with a two-dimensional (2D) transform separable to two one-dimensional (1D) transforms. The method receives an array of values for a sub-section of an image, performs a first 1D-transform of the array, transposes the resulting array, and ... | 05/20/2008 |
| 7373001 | Compressed moving image decompression device and image display device using the same A moving image compression (or encoding) device including: a hardware processing section which compresses moving image data by hardware; a data storage section which stores the moving image data processed by the hardware processing section; and a software processing... | 05/13/2008 |
| 7366238 | Noise filter for video processing A noise filter for a video processing system includes a block selector, a cost calculator, a cost table, a cost comparator, and a coefficient filter. The block selector is coupled to receive data from the quantization unit and selects blocks for additional filtering... | 04/29/2008 |
| 7362647 | Power control circuit A power control circuit for an integrated circuit module includes at least one switch device coupled between a supply voltage and a node of the integrated circuit module; and a switch control module having a first terminal coupled to the switch device and a second t... | 04/22/2008 |
| 7356189 | Moving image compression device and imaging device using the same A moving image compression (or encoding) device including: a hardware processing section which compresses moving image data by hardware; a data storage section which stores the moving image data processed by the hardware processing section; and a software processing... | 04/08/2008 |
| 7292730 | Two-dimensional inverse discrete cosine transforming Implementing a two-dimensional inverse discrete cosine transform function includes executing two one-dimensional inverse discrete cosine transforming functions. Each of the one-dimensional functions is controlled to operate on a matrix of coefficients in either of t... | 11/06/2007 |
| 7278117 | Image segmentation and warping for specialized display viewing A method, program product and system for warping image data, the method comprising in one embodiment: receiving image data for an image; segmentation of the image into a plurality of regions based on regional classification of the image; obtaining a set of warping r... | 10/02/2007 |
| 7254267 | Encoder for volume data A volume data encoder with high encoding efficiency is provided. The object of the coding is volume data which contains a plurality of tomogram planes output from a CT and an MRI. A header analysis unit separates each plane image into header information and pixel in... | 08/07/2007 |
| 7155069 | Image processing apparatus, image processing method, and image processing program A first image enlargement processing section enlarges an original image to a specified size to generate an initial enlarged image. A domain block extraction section extracts a domain block image from the original image. A range block extraction section extracts a ra... | 12/26/2006 |
| 7092571 | Method and apparatus for regional image quantification verification A method and apparatus are disclosed for testing the accuracy of digital test images generated by a computer graphics program executed on a computer graphics system. A test program is utilized to compare a test image with a reference image. Regional image quantifica... | 08/15/2006 |
| 7079697 | Image compression with transform coefficient analysis A method of image/video compression with intra-coding blocks analyzed for sum of absolute magnitudes of AC coefficients of DCT of block to determine whether to approximate the block with 0 AC coefficients, and with inter-coding blocks analyzed for sum of absolute di... | 07/18/2006 |
| 7076101 | Method and apparatus for local image quantification verification A method and apparatus are disclosed for testing the accuracy of digital test images by comparing the value of each test image pixel with the average value of a corresponding reference image pixel array. The local image quantification verification test program accep... | 07/11/2006 |
| 7050492 | Matching of a reduced spectrum lighting source with video encoding program variables for increased data compression ratios A tri-phosphor light having a reduced emission spectrum is matched with program encoding variables for a video encoder, such that the video encoder substantially encodes only those portions of the visible spectrum corresponding to wavelength bands centered around in... | 05/23/2006 |
| 7050494 | Frame display method and apparatus using single field data The present invention relates to a method for displaying picture frames using single field data in interlaced encoded image data having a two-field structure. This method comprises the steps of: performing inverse quantization of the interlaced encoded image data to... | 05/23/2006 |
| 7046862 | Image processing apparatus and program A domain block extracting unit extracts a domain block image from an original image. A range block extracting unit extracts a range block image from an area in the vicinity of the domain block image. The range block image has size being larger than a domain size and... | 05/16/2006 |
| 6977961 | Method and apparatus for macroblock DC and AC coefficient prediction for video coding Existing video data compression algorithms exploit the fact that the DCT coefficients in the neighbouring blocks are sometimes similar to those in the current block. This means that if the blocks contain completely different coefficients, for coding video data is di... | 12/20/2005 |
| 6961468 | Method and apparatus for adaptive local image quantification verification A method and apparatus are disclosed for testing the accuracy of digital images generated by a computer graphics program executed on a computer graphics system. A test program is utilized to compare test images with a set of reference images. Adaptive local image qu... | 11/01/2005 |
| 6947060 | Image forming apparatus, electron beam apparatus, modulation circuit, and image-forming apparatus driving method An image forming apparatus which performs pulsewidth modulation with a pulsewidth set by counting a clock. Especially, for grayscale level correction by setting the frequency of the clock, the periodic clock is counted, and an output pattern is changed in accordance... | 09/20/2005 |
| 6930689 | Hardware extensions for image and video processing A processing device (200) includes three hardware extensions: a motion estimation extension 202, a pixel interpolation extension 204 and a DCT/iDCT extension 206. The hardware extensions perform functions which would otherwise be highly p... | 08/16/2005 |
| 6876704 | Apparatus and method for encoding and computing a discrete cosine transform using a butterfly processor An apparatus to determine a transform of a block of encoded data the block of encoded data comprising a plurality of data elements. An input register is configured to receive a predetermined quantity of data elements. At least one butterfly processor is coupled to t... | 04/05/2005 |
| 6870885 | Apparatus and method for decoding and computing a discrete cosine transform using a butterfly processor An apparatus to determine a transform of a block of encoded data the block of encoded data comprising a plurality of data elements. An input register is configured to receive a predetermined quantity of data elements. At least one butterfly processor is coupled to t... | 03/22/2005 |
| 6853683 | Regularized dequantizer for DCT-based transform coding A new dequantization scheme for DCT-based transform coding, such as JPEG, MPEG and H.26x, is disclosed. The new approach drastically reduces blocking artifacts without smoothing the decoded image. Most discrete cosine transform (DCT) based video coding suffers from ... | 02/08/2005 |
| 6847682 | Method, system, device and computer program product for MPEG variable bit rate (VBR) video traffic classification using a nearest neighbor classifier A method, system, device and computer program product for moving pictures experts group (MPEG) variable bit rate (VBR) video traffic classification using a nearest neighbor classifier, including determining I, P and B frame sizes for an input MPEG VBR video sequence... | 01/25/2005 |
| 6807311 | Method and apparatus for compressing and storing image data A method and apparatus for compressing image data for storage in a memory device is presented. This is accomplished by separating the image data into a plurality of pixel sets where each pixel set is of a predetermined pixel set size. A discrete cosine transform is ... | 10/19/2004 |
| 6788811 | Coding apparatus, decoding apparatus, coding method, decoding method, amd computer-readable recording medium for executing the methods A coding apparatus which can simplify a coding circuit and also simplify the processing of quantization. Image data that consists of R-, G-, and B-color components read from a scanner into buffers is subjected to transformation using a position correlation for each ... | 09/07/2004 |
| 6778709 | Embedded block coding with optimized truncation A multi-layer embedded bitstream is generated from a subband decomposition by partitioning each subband of the decomposition into a plurality of blocks; and encoding the blocks of each subband. The blocks of each subband are coded independently of each other. Result... | 08/17/2004 |
| 6751354 | Methods and apparatuses for video segmentation, classification, and retrieval using image class statistical models Techniques for classifying video frames using statistical models of transform coefficients are disclosed. After optionally being decimated in time and space, image frames are transformed using a discrete cosine transform or Hadamard transform. The methods disclosed ... | 06/15/2004 |
| 6637031 | Multimedia presentation latency minimization To obtain real-time responses with interactive multimedia servers, the server provides at least two different audio/visual data streams. A first data stream has fewer bits per frame and provides a video image much more quickly than a second data stream wi... | 10/21/2003 |
| 6611274 | System method, and computer program product for compositing true colors and intensity-maped colors into a frame buffer The color of a pixel is represented in a pixel storage word, wherein color coordinate data and intensity data are coded separately in two fields of the pixel storage word, the color field and the intensity field. This permits a range of colors to be repre... | 08/26/2003 |
| 6608867 | Detection and proper scaling of interlaced moving areas in MPEG-2 compressed video The present invention provides a method of and system for determining whether a local area of a compressed video stream represented by a plurality of DCT encoded blocks subject to decoding and filtering/scaling is a stationary area or an interlaced moving... | 08/19/2003 |
| 6556725 | Data processing device and data order converting method A column address is decoded by each column decoder, and an arrangement of pixels to be written to a memory cell array is rotated by a rotation circuit. The rotation result is written to the memory cell array in accordance with the decoding result of the c... | 04/29/2003 |
| 6535646 | Discrete cosine transform method and apparatus A linear transform apparatus for implementing a linear transform on input data values to produce linear transformed output data, the apparatus comprising: input means for inputting input data values one after another to each of a series of multiplication ... | 03/18/2003 |
| 6498866 | Methods and devices for processing data and notably for compressing and decompressing images According to the invention, the method of primary processing of a first set of primary data (IM,f) representing physical quantities includes: a set division step (200A to 202) during which the first set of data is divided into sub-sets of first data, and for e... | 12/24/2002 |
| 6411653 | Cascaded polyphase DFT-filter band for a wireless telecommunications system A technique for reducing computational and storage requirements of cascaded polyphase DFT-filter bank for receiving and transmitting telecommunications is disclosed. The cascaded polyphase DFT-filter bank is designed by specifically selecting a range of r... | 06/25/2002 |
| 6356317 | Image processor A frame memory is provided which has five fields each having N slots, and three additional slots. Each slot has a storage capacity to store eight image lines. Four fields of the five fields serve to store motion compensation reference frames. The remainin... | 03/12/2002 |
| 6275616 | Method and apparatus for converting a high definition image to a relatively lower definition image using wavelet transforms A method and an apparatus for converting a high definition image to a relatively lower definition image is provided. Image data encoded with a discrete cosine transform (DCT) is decoded using an inverse wavelet transform (IDWT). A fast inverse discrete wa... | 08/14/2001 |
| 6134347 | Image filming and compression system, image filming and compression method, and recording medium storing processing program therefor An image filming and compression system includes a color complementary filter having a predetermined color arrangement; a CCD for generating image data for output according to the light of an object received via the color complementary filter; block formi... | 10/17/2000 |
| 5973738 | Method and apparatus for improved video coding The present invention includes a video encoder optimized so as to be implemented using general purpose DSPs or as software executable on a general purpose microprocessor. The present invention includes a modified motion detector module (50) which classifi... | 10/26/1999 |
