| Patent application number | Description | Published |
|---|
| 20100002943 | METHOD AND APPARATUS FOR ENCODING AND DECODING IMAGE USING IMAGE SEPARATION BASED ON BIT LOCATION - Provided are method and apparatus for encoding and decoding an image by using a bit plane-based image encoding method and a block-based image encoding method respectively on bit planes based on the n-m most significant bits of an input image including n-bit pixel values and an image based on the m least significant bits of the input image. | 01-07-2010 |
| 20100054615 | METHOD AND APPARATUS FOR ENCODING/DECODING IMAGE BY USING ADAPTIVE BINARIZATION - A method and apparatus for encoding/decoding an image, wherein the method includes selecting a predetermined binarization table from a plurality of binarization tables based on prediction values of a current pixel and binarizing or inversely binarizing residual values by using the selected binarization table. | 03-04-2010 |
| 20100195924 | METHOD AND APPARATUS FOR SUCCESSIVELY ENCODING/DECODING IMAGE - Provided is a method and apparatus for compression encoding/decoding an image based on the repetition of an access unit and the repetition of a residual value. | 08-05-2010 |
| 20100232722 | METHOD AND APPARATUS FOR ENCODING AND DECODING IMAGE BASED ON CODE TABLE SELECTION ADAPTED TO RESIDUAL VALUE DISTRIBUTION - A method and apparatus are provided for encoding and decoding an image which entropy encode and decode a residual value of a current pixel in consideration of a context model determined with reference to at least one pixel value that is encoded and decoded before the current pixel and distribution of the residual values encoded and decoded according to the determined context model. | 09-16-2010 |
| 20110026545 | METHOD AND APPARATUS FOR ENCODING AND DECODING DATA WITH ALTERED BIT SEQUENCE - Provided are methods and apparatuses for encoding data. One method of encoding data includes generating second data by altering locations of bits within first data to be encoded next based on values of bits within at least one piece of previously encoded data; and entropy-encoding the second data. Also provided are methods and apparatuses for decoding data. | 02-03-2011 |
| 20110064131 | METHOD AND APPARATUS FOR ENCODING AND DECODING IMAGE BASED ON SKIP MODE - A method and apparatus for decoding an image are provided. The method includes: decoding information representing that a first block of the image has been encoded in a first mode; and reconstructing the first block by setting pixel values of the first block to be identical with pixel values of a second block of the image that is adjacent to the first block and has been decoded prior to the first block, wherein the first mode is a mode for encoding information representing that the first block is identical or similar to the second block and has been encoded in the first mode, instead of encoding the pixel values of the first block. | 03-17-2011 |
| 20110064132 | METHODS AND APPARATUSES FOR ENCODING AND DECODING MODE INFORMATION - Methods and apparatuses for encoding and decoding mode information of a block of an image. The method of decoding the mode information includes decoding information representing whether a current block is encoded in a first mode, and hierarchically decoding information representing an encoding mode of the current block from among a second mode and a third mode. | 03-17-2011 |
| 20110064133 | METHOD AND APPARATUS FOR ENCODING AND DECODING MODE INFORMATION - A method and apparatus for decoding hierarchical mode information including mode information indicating whether a current block is encoded in an encoding mode identical to an encoding mode of a plurality of consecutive previous blocks. | 03-17-2011 |
| 20110064324 | METHOD AND APPARATUS FOR ENCODING AND DECODING IMAGE BASED ON SKIP MODE - A method and apparatus for encoding and decoding an image. The encoding method includes: deciding whether pixel values of a first block of an image are identical to pixel values of a second block of the image that is encoded prior to the first block in a current slice of the image, and determining whether to encode the first block in a first mode according to the deciding; and selectively encoding the first block in the first mode based on the determining, wherein the first mode is a mode for encoding information representing that the first block is encoded in the first mode, instead of encoding the pixel values of the first block, when the first block is identical or similar to the second block. | 03-17-2011 |
| 20110064325 | METHOD AND APPARATUS FOR ENCODING AND DECODING IMAGE BASED ON SKIP MODE - An image encoding method and apparatus, and an image decoding method and apparatus respectively corresponding to the image encoding method and apparatus are provided. The image encoding method includes: if a current block is an initial block of a current slice, determining whether a virtual block in which pixel values are equal to a predetermined value is identical to the current block; and encoding the current block in a first mode based on the determining, wherein the first mode is a mode for encoding information representing that the current block is encoded in the first mode, instead of encoding pixel values of the current block, when the current block is identical to the virtual block. | 03-17-2011 |
| 20110116721 | METHOD AND APPARATUS FOR ENCODING AND DECODING IMAGE DATA USING RUN OF THE IMAGE DATA - An encoding method includes selecting a run detection method in accordance with characteristics of image data, generating a run value by detecting a run that is repeated in the image data in accordance with the selected run detection method, generating run count bits by counting the number of repetitions of the detected run, and performing a run-length encoding using the detected run values and the run count bits. The run detection method includes a coefficient run detection method that detects a run based on pixel values, a pattern run detection method that detects the run based on whether the pixel blocks have a specified pattern, a difference run detection method that detects the run based on a difference value between two successive pixel values, and a residual run detection method that detects the run based on an error value that is a difference value between an actual pixel value and a predicted value. | 05-19-2011 |
