Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 8165213 | Frame conversion apparatus and method, and frame type detection apparatus and method Provided are a frame conversion apparatus and method and a frame type detecting apparatus and method. The frame conversion apparatus may include a detecting unit and an inverse telecine unit. The detecting unit may determine that each data frame is a telecine frame ... | 04/24/2012 |
| 8165214 | Circuit and method for generating fixed point vector dot product and matrix vector values An integrated circuit (102) and method computes fixed point vector dot products (424) and/or matrix vector products using a type of distributed architecture that loads bit planes (add 00-add30) and uses the loaded bit planes to generate a... | 04/24/2012 |
| 8155203 | Method for transcoding a data stream comprising one or more coded, digitised images An input data stream coded using a first coding method and containing at least one coded digitized image is converted into an output data stream that is coded using a second coding method. The input data stream has first intra-blocks, each of which is coded in a fir... | 04/10/2012 |
| 8027387 | Moving picture coding apparatus utilizing a DCT coefficient for performing intra-coding In a moving picture coding apparatus, a first determining section determines whether the parameter is less than or equal to a predetermined threshold and a first measuring section, for each divided blocks, measures time duration while the first determining section i... | 09/27/2011 |
| 7974346 | System and method for generating video data for implicit coefficient prediction decoding A predictive video coder performs gradient prediction based on previous blocks of image data. For a new block of image data, the prediction determines a horizontal gradient and a vertical gradient from a block diagonally above the new block (vertically above a previ... | 07/05/2011 |
| 7860167 | Apparatus and method for adaptive 3D artifact reducing for encoded image signal An efficient and non-iterative 3D post processing method and system is proposed for mosquito noise reduction, block localization and correction in DCT block-based decoded images. The 3D post processing is based on a simple classification that segments a picture in m... | 12/28/2010 |
| 7801221 | Method and system for measuring video image degradations introduced by an encoding system with throughput reduction A method of measuring the degradations in a digitized image, which are introduced during the encoding of the image is provided. The method consists in: retrieving the block decomposition of the image used during the encoding thereof; offsetting the coding grid in re... | 09/21/2010 |
| 7782955 | Transcoder and transcoding method operating in a transform domain for video coding schemes possessing different transform kernels A transcoder for converting a digital video signal from a first format into a second format in transform domain. The first format and the second format are respectively adopted by video coding schemes possessing different DCT transform kernels. The transcoder includ... | 08/24/2010 |
| 7778330 | Method of measuring blocking artefacts The invention relates to a method of measuring blocking artefacts on the basis of video data encoded in accordance with a block encoding technique. This method comprises a step of computing a monodimensional inverse discrete transform (31) of a first row of a... | 08/17/2010 |
| 7760808 | Image processing of DCT-based video sequences in compressed domain This invention relates to a method for applying at least one of contrast adjustment and brightness adjustment to a compressed, motion compensated DCT-based video sequence corresponding to an image processing operation, comprising the steps of providing the compresse... | 07/20/2010 |
| 7724825 | Video data processing method by calculating a DCT of the concatenated data set A method and an arrangement for processing data in a digital input image include a decoder configured to decode encoded data. A detector is configured to detect the decoded data and a correction device is configured to correct the detected data. A predicted maximum ... | 05/25/2010 |
| 7706447 | Switching between bit-streams in video transmission A method for transmitting video information is shown, in which at least a first bit-stream (510) and a second bit-stream are formed. The first bit-stream (510) includes a video frame, and the second bit-stream (520) includes a predictive video f... | 04/27/2010 |
| 7693220 | Transmission of video information The present invention relates to a method for transmitting video information, in which a bitstream is formed comprising a set of frames comprising macroblocks. At least one switching frame is formed into the bitstream, macroblocks of the switching frame are arranged... | 04/06/2010 |
| 7680192 | Multi-sensor panoramic network camera A multi-sensor network camera providing up to 360 degrees angle of view. The includes multiple image sensors with individual optics, one or more image processors, compression units and network interfaces mounted in the single housing. The image sensors are positione... | 03/16/2010 |
| 7646813 | Encoding circuit for transform coding of a picture signal and decoding circuit for decoding said signal An encoding circuit transforms a picture signal into blocks of, for example, 8*8 coefficients, in which each block of coefficients is read motion- adaptively. In the case of motion within a sub-picture, the block of coefficients is read in such an order that the obt... | 01/12/2010 |
| 7609766 | System of intra-picture complexity preprocessing A system having a video pipeline that includes a variation calculation portion is disclosed. The variance calculation portion calculates a plurality of variance values for a macroblock. A DCT-type indicator for the macroblock is determined based upon the plurality o... | 10/27/2009 |
| 7548583 | Generation and use of masks in MPEG video encoding to indicate non-zero entries in transformed macroblocks During Motion Picture Experts Group (MPEG) video encoding a two-dimensional discrete cosine transform (DCT) is performed on data representing an original image. The resulting coefficients are then quantized, which typically results in many zero coefficients. Because... | 06/16/2009 |
| 7440501 | Method and apparatus for controlling loop filtering or post filtering in block based motion compensationed video coding Adjacent blocks are identified in an image. Coding parameters for the adjacent blocks are identified. Deblock filtering between the identified adjacent blocks is skipped if the coding parameters for the identified adjacent blocks are similar and not skipped if the c... | 10/21/2008 |
| 7426311 | Object-based coding and decoding apparatuses and methods for image signals An object-based coding apparatus and method for image signals, wherein upon scanning shape-adaptive transform coefficients of an input image signal transformed in accordance with a shape-adaptive transform, only segments containing such shape-adaptive transform coef... | 09/16/2008 |
| 7424057 | Data format transcoding apparatus and associated method The present invention provides an apparatus for converting image data, including a block extraction unit extracts a class tap from a composite signal. A pixel-location-mode output unit determines a pixel location mode from the extracted class tap, and outputs it to ... | 09/09/2008 |
| 7424151 | Method and system for image classification and halftone frequency detection A system and method for classifying an image block of a printed image into contone, halftone, or error diffusion classes, includes scanning the printed image; selecting an n by n block of pixels from the scanned image in a luminance channel; calculating an array of ... | 09/09/2008 |
| 7418134 | Method and apparatus for foreground segmentation of video sequences The present invention relates to a method and system for foreground segmentation in which frames of a video sequence are analyzed in the transform domain to determine one or more features. The features are used to model the background. The background can be modeled ... | 08/26/2008 |
| 7408991 | Error detection in low bit-rate video transmission A method for decoding video data blocks using variable length codes, comprising transforming information about the spatial frequency distribution of a video data block into pixel values. Prior to said transformation, a first reference value (Xref) representing the a... | 08/05/2008 |
| 7379500 | Low-complexity 2-power transform for image/video compression To encode image and video data using a transform having low computational complexity and high compression efficiency, all elements of the matrix can be expressed with power-of-2 elements, with a template of the matrix approximating a DCT matrix. ... | 05/27/2008 |
| 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 |
| 7372906 | Compression circuitry for generating an encoded bitstream from a plurality of video frames Data is discrete cosine transformed and streamed to a processor where quantized and inverse quantized blocks are generated. A second streaming data connection streams the inverse quantized blocks to an inverse discrete cosine transform block to generate reconstructe... | 05/13/2008 |
| 7369706 | Image-data processing device, image-data processing method, image-data distributing device and image-data transmitting system An image processing device for processing an original image divided into a plurality of blocks that are made up of a plurality of picture elements from encoded image-data which is obtained by encoding a spatial-frequency component of the block as a plurality of spat... | 05/06/2008 |
| 7369613 | Process for the format conversion of MPEG bitstreams, a system and computer program product therefor A process for format conversion of DCT macroblocks in an MPEG video bitstream that are divided into blocks, each of which includes a plurality of microblocks. In each DCT block, the significant frequencies are identified and preserved, isolating a corresponding micr... | 05/06/2008 |
| 7366240 | Decoder and method of decoding using pseudo two pass decoding and one pass encoding A method of processing video frame data includes the steps of: receiving a video frame; partially decoding the video frame; fully decoding the video frame to produce macroblocks; determining video data parameters from the partially decoded video frame or both the pa... | 04/29/2008 |
| 7366236 | Source adaptive system and method for 2D iDCT This invention discloses a fast two-dimensional inverse Discrete Cosine Transform (iDCT) that adapts to compressed video source statistics to reduce execution time. iDCT algorithms for sparse blocks eliminate calculations for some zero coefficients and are implement... | 04/29/2008 |
| 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 |
| 7356082 | Video/audio signal processing method and video-audio signal processing apparatus A metadata extraction unit has a feature point selection and motion estimation unit 62 for extracting at least one feature point representing characteristics of the video/audio signals in a compressed domain of the video/audio signals. Thus, reduction of time... | 04/08/2008 |
| 7356191 | Image encoding apparatus and method, program and recording medium In an image encoder is provided, including a to-be-encoded object prediction unit which counts quantization coefficients which are newly made significant, for example, when each bit plane is encoded, on the basis of quantization coefficient for each bit plane in all... | 04/08/2008 |
| 7352811 | Data encoding apparatus and method A data encoding apparatus operable to encode a plurality of data blocks produces encoded data in accordance with at least one of a selectable target data quantity or a selectable target data quality. The apparatus comprises a plurality of encoding processors at leas... | 04/01/2008 |
| 7352896 | Method for interpolation and sharpening of images A method, a system, a device, a storage means, and a computer software product for sharpening colours in an image, in which a first colour component is interpolated and sharpened in such a way that the effect of the colour component is computed in different directio... | 04/01/2008 |
| 7352812 | Method and apparatus for controlling loop filtering or post filtering in block based motion compensationed video coding Adjacent blocks are identified in an image. Coding parameters for the adjacent blocks are identified. Deblock filtering between the identified adjacent blocks is skipped if the coding parameters for the identified adjacent blocks are similar and not skipped if the c... | 04/01/2008 |
| 7349476 | Digital motion picture decoding apparatus and digital motion picture decoding method A digital motion picture decoding apparatus comprising an input buffer memory for storing coded data to be decoded, a reproduced picture memory for storing the decoded picture data to be displayed, and a display picture deciding means for deciding a reproduced pictu... | 03/25/2008 |
| 7342962 | Transcoders and methods Transcoding as from MPEG-2 SDTV to MPEG-4 CIF reuses motion vectors and downsamples in the frequency (DCT) domain with differing treatments of frame-DCT and field-DCT blocks, and alternatively uses de-interlacing IDCT with respect to the row dimension plus deferred ... | 03/11/2008 |
| 7343045 | Image information compression device This invention controls the code generation quantity adaptively with respect to the pattern of images and changes in the images, etc., so as to alleviate degradation in image quality, and to effectively reduce the spatial redundancy in order to provide a margin in t... | 03/11/2008 |
