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| Number | Title | Issue Date |
| 7362805 | High efficiency encoder and video information recording/reproducing apparatus In a high-efficiency encoder which performs motion-compensation prediction, an intra-field is set every n fields. The presence of a scene change is detected. When a scene change occurs, a reference picture of motion-compensation prediction is switched, or the field ... | 04/22/2008 |
| 7231091 | Simplified predictive video encoder In a video coding method, it is determined to code input video data according a technique selected from the group of: (a) intra-coding, (b) inter-coding without a residual and (c) inter-coding with a residual, wherein inter-coding codes the input video data with ref... | 06/12/2007 |
| 7215384 | Method and apparatus for simplifying field prediction motion estimation Motion estimation on a received stream of data comprising at least a predicted frame and an anchor frame, and utilizing even-parity field prediction to predict content of each of a plurality of fields of the predicted frame from corresponding fields of the anchor fr... | 05/08/2007 |
| 7190840 | Transform coefficient compression using multiple scans A transform coefficient block of a frequency domain representation of a digital image is processed by performing scans on at least three different regions of the block. ... | 03/13/2007 |
| 7148996 | Multi-spectral image compression with bounded loss A system and method for generating bounded-loss color transformation employed in the compression and decompression of multi-spectral images is provided. The bounded-loss color space transformations provide transformations from a first color space to a second color s... | 12/12/2006 |
| 7031386 | Image transmitter A transmitter is capable of compressing an incoming image with a relatively small delay time and transmit the compressed image data to a receiver. Image data contains at least i pixel values of pixels arranged in line along a single direction, each pixel value being... | 04/18/2006 |
| 6968005 | Video coding A method of encoding a video signal representing a sequence of pictures, the method employing both non-temporal prediction and temporal prediction, wherein the method comprises, for each picture that forms a reference picture for the temporal prediction of another p... | 11/22/2005 |
| 6954502 | Method for encoding and decoding video information, a motion compensated video encoder and a corresponding decoder A method for encoding video information is presented, where a piece of current video information is segmented into macroblocks and a certain number of available macroblock segmentations for segmenting a macroblock into blocks is defined. Furthermore, for each availa... | 10/11/2005 |
| 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 |
| 6912584 | Media coding for loss recovery with remotely predicted data units An improved loss recovery method for coding streaming media classifies each data unit in the media stream as an independent data unit (I unit), a remotely predicted unit (R unit) or a predicted data unit (P unit). Each of these units is organized into independent se... | 06/28/2005 |
| 6859498 | Transmitting/received data processing method for inhibiting error propagation in digital image data communications system and recording medium therefor A method of inhibiting error propagation in a bidirectional digital compressed image data communication system is provided. A method of processing transmission data to inhibit error propagation in a digital image data communication system, includes (a) inputting an ... | 02/22/2005 |
| 6353680 | Method and apparatus for providing image and video coding with iterative post-processing using a variable image model parameter The present invention is an apparatus that comprises a memory including one or more instructions and a processor coupled to the memory. In response to the one or more instructions, the processor transforms an image to provide a transformed image and quant... | 03/05/2002 |
| 6201833 | Motion determining apparatus, method thereof, and picture information converting apparatus A motion determining apparatus for detecting a motion of a partial picture of an input picture signal is disclosed, that comprises a first detecting means for detecting a frame difference of the partial picture, a second detecting means for detecting a sp... | 03/13/2001 |
| 6128345 | Image signal coding system An adaptive blocking coding system selects an effective blocking of an input image signal to be encoded in accordance with the correlation between fields, even if motion is detected between the fields. The blocking patterns include an individual field blo... | 10/03/2000 |
| 6122321 | Methods and apparatus for reducing the complexity of inverse quantization operations Methods and apparatus for implementing video decoders at a lower cost than known video decoders are described. The methods include data reduction techniques, simplified inverse quantization techniques, and dynamically varying prediction filter complexity ... | 09/19/2000 |
| 5754687 | Information recording medium and information reproducing apparatus capable of stably reproducing changeable code patterns at high speed In a system for printing and recording multimedia information on an information recording medium in the form of an optically readable code pattern, reading the code pattern and restoring the original multimedia information, the code pattern of the informa... | 05/19/1998 |
| 5521641 | Image data coding apparatus and method An image data coding apparatus and method to achieve a scale-down of a circuit without sacrificing compression efficiency. Input image data is delayed in a delay circuit and a coincidence detector compares the image data and delay image data to output a c... | 05/28/1996 |
| 5491515 | Image coding/decoding apparatus for efficient processing by sharing members in coding/local decoding and decoding processing An image coding/decoding apparatus intended for efficient processing by sharing members in coding, local decoding, and decoding processing. Processes such as DCT and IDCT, zigzag scan conversion and inversion, or quantization and inverse quantization perf... | 02/13/1996 |
| 5469213 | Time-varying image signal coding/decoding system In the time-varying image signal coding apparatus, a local encoded signal is quantized by a quantizing circuit, and the quantized signal is selected when refreshing is to be accomplished, and subjected to code transform by a code transform circuit to be t... | 11/21/1995 |
| 5416857 | Apparatus and method for compressing data while retaining image integrity Apparatus and method for compressing sequentially related data while fully preserving the informational content of the data. In a preferred form, digital format video image data individualized by pixel is compressed by defining a reference value for a fir... | 05/16/1995 |
| 5369437 | Time-varying image signal coding/decoding system In the time-varying image signal coding apparatus, a local encoded signal is quantized by a quantizing circuit, and the quantized signal is selected when refreshing is to be accomplished, and subjected to code transformation by a code transform circuit to... | 11/29/1994 |
| 5010402 | Video signal compression apparatus A video signal compression apparatus in which a video signal having a non-matrix pixel arrangement is separated into a plurality of partial images each having a matrix pixel arrangement. The partial images thus separated are interpolated into those contai... | 04/23/1991 |
| 4837618 | Moving image signal coding system A system of coding moving image signals produces a predictive error signal by a predictive coding based on inter-frame correlation and quantizing the predictive error signal for each block of a picture frame constituted by N lines of M pixels. The system ... | 06/06/1989 |
| 4805017 | System for coding and transmitting motion image signals A motion compensation difference interframe or intra-frame coding system includes a block data redundancy compression and coding unit, a PIXEL data coding unit and a prediction data generator unit. The block data redundancy compression and coding unit cod... | 02/14/1989 |
