Chips&media,inc

Electronics and Telecommunications Research Institute

Sejong University

Industry-university Cooperation Foundation Korea Aerospace University

Wook Je Jeong

Dong Jin Park

Min Yong Jeon

Hui Yong Kim

Sung Chang Lim

Jin Ho Lee

Ha Hyun Lee

Jung Won Kang

Dae Yeon Kim

Hyun Gyu Kim

Myoung Hun Jang

Yung Lyul Lee

Nam Uk Kim

Jae Gon Kim

Myung Jun Kim

Ji Youn Jung

There is provided an image encoding/decoding method and apparatus. The image decoding method comprises decoding information on whether or not to perform motion information refinement from a bitstream, obtaining second motion information for first motion information on a current block on the basis of the information and reconstructing at least one of the current block and a neighboring block of the current block by using at least one of the first motion information and the second motion information.

Image encoding/decoding method and apparatus for throughput enhancement, and recording medium storing bitstream

Image encoding/decoding method and apparatus for throughput enhancement using motion vector refinement

An image decoding method is disclosed in the present specification. A method of decoding an image, the method may comprises determining whether to perform a context update for a first syntax element of a current block, updating, on the basis of the determination, a context for entropy decoding of the first syntax element and generating, on the basis of the updated context, a bin for the first syntax element, and wherein whether to perform the context update is determined on the basis of the number of pre-decoded predetermined syntax elements for the current block.

Image encoding/decoding method and apparatus, and recording medium storing bitstream

An image decoding is performed by steps including: determining whether or not to perform filtering on a boundary of a current block; determining a filtering strength on the boundary of the current block, and a number of samples used in filtering; and performing filtering on the boundary of the current block on the basis of the filtering strength and the number of samples used in filtering, where the number of samples used in filtering is determined on the basis of a size of the current block.

Video encoding/decoding method and device, and recording medium for storing bitstream

Provided is an apparatus for processing a video. The apparatus for processing a video includes an image receiving module that is configured to receive encoded data; a filtering module that is configured to filter an image frame reconstructed from the encoded image; a block dividing module that is configured to divide the filtered image frame into a plurality of blocks; a compression module that is configured to selectively compress each of the plurality of blocks by determining each compression method for the blocks, package the compressed or uncompressed plurality of blocks into a predetermined unit; and a frame buffer memory that is configured to record the packaged data and the lookup table information.

Method and apparatus for processing video

Provided is a video processing apparatus for processing motion compensation of a plurality of frames. The video processing apparatus includes an image receiving receiver, a filter, a block divider, a compression processor, and a frame buffer memory. The image receiving receiver receives encoded data The filter an image frame reconstructed from the encoded data, and a block divider divides a reference frame into a plurality of blocks in a predetermined block dividing unit. The each of the plurality of blocks has an identical size. A compression processor compresses each of the plurality of blocks in a method selected from one of an uncompression method or a lossless compression method on a basis of reduction or non-reduction of bandwidths with respect to a frame buffer memory that contains the reference frame and packages the plurality of blocks in a unit of a burst group. A size of the burst group corresponds to a burst length of the frame buffer memory. The frame buffer memory records the packaged data and provides the reference frame for the emotion compensation. The lossless compression method includes a lossless variable-length compression method, such as a DPCM entropy coding method.

Method and apparatus for processing motion compensation of a plurality of frames

Provided is an apparatus for processing a video. The apparatus for processing a video includes an image receiving module that is configured to receive encoded data, a filtering module that is configured to filter an image frame reconstructed from the encoded image, a block dividing module that is configured to divide the filtered image frame into a plurality of blocks, a compression module that is configured to compress each of the plurality of blocks, package the compressed plurality of blocks into a predetermined unit, and generate lookup table information corresponding to each of the packaged plurality of blocks, and a frame buffer memory that is configured to record the packaged data and the lookup table information.

Provided is an apparatus for processing a video. The apparatus for processing a video includes an image receiving module that is configured to receive encoded data, a filtering module that is configured to filter an image frame reconstructed from the encoded image, a block dividing module to divide the filtered image frame into a predetermined block dividing unit, a compression module to compress each of the plurality of blocks, to package the compressed plurality of blocks into a predetermined packaging unit, and to generate lookup table information corresponding to each of the packaged block, a frame buffer memory that is configured to record the packaged data, a first decompression module that is configured to perform first decompression of one or more of the recorded blocks corresponding to a particular frame for motion compensating by using the lookup table information, and a converter that is configured to decompress the recorded blocks to output sequentially by using the lookup table information.

Provided is an apparatus for processing a video. The apparatus for processing a video includes an image receiving module that is configured to receive encoded data, a filtering module that is configured to filter an image frame reconstructed from the encoded image, a block dividing module to divide the filtered image frame into a predetermined block dividing unit, a compression module to compress each of the plurality of blocks, to package the compressed plurality of blocks into a predetermined packaging unit, and to generate lookup table information corresponding to each of the packaged block, a frame buffer memory that is configured to record the packaged data, and a decompression module that is configured to obtain and decompress at least one of the packaged blocks by using the lookup table information.

Growing community of inventors

Gwacheon-si, South Korea

Wook Je Jeong