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| Number | Title | Issue Date |
| 7116712 | Apparatus and method for parallel multimedia processing An apparatus and method for processing a multimedia digital bitstream is disclosed. The apparatus comprises a processing chain made up of a plurality of media processors. Each media processor processes a portion of the multimedia digital bitstream in real time. Each... | 10/03/2006 |
| 7116713 | Moving picture coding method, moving picture coding apparatus, and moving picture coding program To provide a process for coding the moving picture with higher speed and enhanced efficiency. The present invention provides a moving picture coding method for coding a moving picture of processing object through a predetermined process including a motion estimating... | 10/03/2006 |
| 7116835 | Image processing apparatus and method, recording medium, and program A normalized activity calculating unit calculates a normalized activity that is calculated from luminescence component pixel values of an original image on the basis of information from an information buffer, such as bit rate, an amount of bits generated in each fra... | 10/03/2006 |
| 7113646 | Decoding of predicted AC coefficient without division A technique for eliminating the division in decoding a predicted AC coefficient includes calculating and storing the values of I//AC_stepsize in a table. This allows one to convert a division into a multiplication. ... | 09/26/2006 |
| 7110451 | Bitstream transcoder In a bitstream transcoder, the computational cost and the memory area are suppressed so that stream transcoding is performed with a reduced number of times of computing and a reduced memory area. The transcoder includes a VLD portion 11 for performing VLD on ... | 09/19/2006 |
| 7110450 | Moving picture encoding apparatus Deterioration of picture quality is prevented even in a transmission environment in which errors easily occur. A block significance determining section produces block significance for each block as an encoding unit according to predetermined evaluation indices. A ma... | 09/19/2006 |
| 7109898 | Variable length coding method and variable length decoding method An image coding apparatus provides a run-length encoding unit RLE1 that subjects quantized coefficients which are obtained by quantizing frequency components of an image signal to a variable length coding process by using a run value Run that indicates the nu... | 09/19/2006 |
| 7110455 | Noise reduction pre-processor for digital video using previously generated motion vectors and adaptive spatial filtering Noise is reduced in a video system by applying motion compensated temporal filtering using previously generated motion vectors and adaptive spatial filtering at scene change frames. Various types of noise can be introduced into video prior to compression and transmi... | 09/19/2006 |
| 7110452 | Systems and methods for detecting scene changes in a video data stream The present invention is related to video encoding. In an embodiment, a first root mean squared (RMS) value is calculated for a first frame relative to a second frame, and a second frame relative to a third frame. A second temporal derivative RMS value is calculated... | 09/19/2006 |
| 7110613 | Image processing apparatus and image pickup device Information of light from a subject is converted into information of the electric charges to generate image data for one screen in an image pickup device, the image data is outputted to an image processing LSI, only the image data belonging to a plurality of areas i... | 09/19/2006 |
| 7106954 | Digital camcorder A digital image and speech recording and reproducing apparatus is arranged to quickly and simply retrieve, classify, and erase a great deal of data for improving the operativity in small-sized equipment. The apparatus includes a recording and reproducing unit for a ... | 09/12/2006 |
| 7106797 | Block transform and quantization for image and video coding An improved method and block transform for image or video encoding and decoding, wherein transformation and inverse transformation matrixes are defined such that computational complexity is significantly reduced when encoding and decoding. For example, in the two-di... | 09/12/2006 |
| 7106796 | Apparatus and method for adaptively controlling bit rate of video transcoder Apparatus and method for adaptively controlling a bit rate of a video transcoder are disclosed. Logarithmic R-Q characteristics obtaining the adaptive R-Q characteristics suitable to characteristics of an inputted image are proposed, and the parameter (β) compensat... | 09/12/2006 |
| 7106795 | Systems and methods for enabling reduced bit-depth processing and memory reduction in video-related data processing Embodiments of the present invention comprise systems and methods for quantization or dequantization of data related to video wherein reduced bit depth intermediate calculations are enabled. ... | 09/12/2006 |
| 7106792 | Method and apparatus for estimating the signal to interference-plus-noise ratio of a wireless channel Method and apparatus that compensates for overestimation of channel SINR due to overfitting of an adaptive equalizer to the pilot portion of a received frame. The SINR of a wireless channel is estimated by adapting an adaptive equalizer using the pilot portion of th... | 09/12/2006 |
| 7106799 | Digital transcoding system A digital transcoder system is presented for receiving data bit streams with a first bit rate (R1) and outputting a data bit stream with a second bit rate (R2) which differs from the first bit rate (R1), and in particular is reduced relative the... | 09/12/2006 |
| 7103099 | Selective compression A method of generating a compressed video stream, comprising: providing a plurality of display commands which represents a display; generating a plurality of quantized transform coefficients from said display commands, wherein said quantization is different for diff... | 09/05/2006 |
| 7103048 | Statistic multiplex transmission system In a network including a first local area ATM network, a second local area ATM network and a public ATM network connected to the first and second ATM local area networks, multiplex gateway devices are interposed between the local area ATM networks and the public ATM... | 09/05/2006 |
| 7102549 | Method and apparatus for programmable codeword encoding and decoding using truncated codewords Methods and apparatus are provided for programmable codeword encoding and decoding. Data blocks are represented as a number of codewords. Data is encoded into one or more full size codewords and at least one truncated codewords. Typically, data is encoded and decode... | 09/05/2006 |
| 7099513 | Bit allocation process for multi-stage image compression A process and apparatus for allocating bits between the stages of a multi-stage digital image compression scheme with quantizer feedback is disclosed. The process selects a quantization schedule (from a finite number of possibilities) for all stages that minimizes a... | 08/29/2006 |
| 7099511 | Method and apparatus for coding and decoding image data using critical points An image data coding and decoding technique which realizes most efficient compression of the image data. The image data are input and separated into key frames and other intermediate frames. Per-pixel matching is computed between the key frames. A virtual intermedia... | 08/29/2006 |
| 7099389 | Rate control with picture-based lookahead window A method of rate control using a picture-based lookahead sliding window in a dual-pass transcoder/encoder compressed video architecture extracts statistics from an input video signal according to a simple compression standard, the input video signal being a compress... | 08/29/2006 |
| 7098944 | Image processing apparatus and method In converting image sensing data into image data, a plurality of image sensing data meeting a predetermined condition are processed as a group of image sensing data. An image reproduction parameter is obtained from this image sensing data group, and each image sensi... | 08/29/2006 |
| 7098868 | Display source divider In an implementation of a display source divider, a video generation system generates a video display source that includes display data for multiple display regions on a display device. For example, a gaming system generates a video display source that includes disp... | 08/29/2006 |
| 7096481 | Preparation of metadata for splicing of encoded MPEG video and audio Metadata for splicing of an encoded digital motion video stream (such as an MPEG Transport Stream) is prepared in real time while recording at the encoding bit rate and faster than encoded bit rate for off line encoding independent of the bit rate and mechanisms for... | 08/22/2006 |
| 7095896 | Image encoding method and image decoding method The method includes the following units: a coefficient number detecting unit (109) for detecting the number of coefficients which has a value other than 0 for each block according to the generated coefficient, a coefficient number storing unit (110) fo... | 08/22/2006 |
| 7095785 | Determination of prediction direction in MPEG-4 By noting the types (I or P) of macro blocks used for DC and/or AC prediction, one can determine the prediction direction without calculating the prediction-direction equation defined by the MPEG-4 standard. ... | 08/22/2006 |
| 7095784 | Method and apparatus for moving picture compression rate control using bit allocation with initial quantization step size estimation at picture level A method and apparatus for rate control in moving picture compression. Bit allocation with initial quantization step size estimation is used at picture level. With the relationship between pre-analyzed activity of current picture to be encoded and actual complexity ... | 08/22/2006 |
| 7092965 | System and method for improved compression of DCT compressed images A system providing methods for improved compression of images that have been compressed using Discrete Cosine Transform (DCT) based compression is described. A digital image that has been compressed using DCT based compression, such as an image compressed using the ... | 08/15/2006 |
| 7092578 | Signaling adaptive-quantization matrices in JPEG using end-of-block codes Previously-unused slots in a Huffman code table associated with a Joint Photographic Experts Group (JPEG) image file are associated with various quantization matrices (Q matrices) that are used to quantize data blocks of the JPEG image file. Huffman codes associated... | 08/15/2006 |
| 7092448 | Method and system for estimating no-reference objective quality of video data The present invention relates to a method and system for estimating the quality of encoded video data without gaining access to the source data. The system is configured to decode compressed video data using an MPEG/H.263 decoder to produce decompressed video data. ... | 08/15/2006 |
| 7092441 | Moving pictures encoding with constant overall bit rate A method and apparatus control bit rates used in a moving pictures encoder, such as an MPEG standard encoder. A sequence of moving pictures is divided into segments each of which comprises one or more groups of pictures. A constant overall bit rate is specified for ... | 08/15/2006 |
| 7091944 | Display controller Systems and methods are disclosed for controlling a display device having a display scan line rate by storing incoming data in a buffer, the buffer having a usage level measure; comparing the usage level to the display scan line rate; and adjusting a width of a disp... | 08/15/2006 |
| 7088372 | Image display apparatus, image display method and computer-readable recording medium storing image display program An image display apparatus in which image signals of a plurality of primary colors are transformed by an image processing section into color space that includes lightness and chromaticity. When the chromaticity (color vividness) in this color space is being correcte... | 08/08/2006 |
| 7082612 | Transmission apparatus of video information, transmission system of video information and transmission method of video information A transmission apparatus for video information is disclosed. The apparatus has an input part for inputting video; a level information generation part for generating level information of each pixel on a screen; a memory part for storing the level information of each ... | 07/25/2006 |
| 7082167 | Method and device for controlling the quality of video data The present invention relates to a method and a device for monitoring the quality of video data having to undergo coding and decoding, making it possible to maintain predetermined constant quality of the video data after decoding. The method is such that information... | 07/25/2006 |
| 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 |
| 7079582 | Image coding apparatus and image coding method In a bit counter 214, an amount of codes included in one transmission unit is counted; in a significance decision section 217, the amount of codes counted in the bit counter 214 is divided by the number of coded macroblocks included in the one t... | 07/18/2006 |
| 7079581 | Apparatus and method for controlling variable bit rate in real time An apparatus and method for controlling a variable bit rate in real time are provided, including an encoding unit for performing a predetermined image conversion on present video data to be encoded and for encoding the video data into a variable bit rate by quantizi... | 07/18/2006 |
| 7079689 | Image processing apparatus and its method, and program An initial similarity candidate calculator calculates a similarity between first and second images, which are expressed by quantized DCT coefficients, on the basis of at least first and second image feature amounts of the first and second images. A coefficient conve... | 07/18/2006 |
