Korea Electronics Technology Institute

Yong-Hwan Kim

Je-Woo Kim

Ji-Ho Park

Byeong-Ho Choi

Joonki Paik

Hwa-Seon Shin

Byeong Ho Choi

Joon Ki Paik

Tae Beom Lim

Hyok Song

Jewoo Kim

Byeongho Choi

Yo-Sung Ho

Jooyoung Yi

Hyeok-Koo Jung

Yoon-Jong Yoo

Provided are a method for image prediction of a multi-view video codec capable of improving coding efficiency, and a computer readable recording medium therefor. The method for image prediction of a multi-view video codec includes partitioning an image to a plurality of base blocks, acquiring information of reference images which are temporally different, acquiring information of reference images which have different views, and predicting a target block based on the acquired information. Accordingly, an image that is most similar to an image of a view to be currently compressed is generated using multiple images of different views, so that coding efficiency can be improved.

Method for image prediction of multi-view video codec and computer readable recording medium therefor

A scalable video coding method is provided. The scalable video coding method includes dividing an enhancement layer into macroblocks; when base_mode_flag or residual_prediction_flag of the macroblock is equal to 1, calculating a reference block coordinate value of a reference layer to refer to in the block up-sampling of the enhancement layer and up-sampling the macroblocks of the enhancement layer using the coordinate value; and coding the up-sampled macroblock. The execution speed of the scalable video codec can be raised and the memory usage required for the spatial inter-layer prediction of the scalable video can be saved.

Method and apparatus for scalable video coding

A method for coding an RGB color space signal is disclosed. In accordance with the method, a base plane is encoded using an independent mode, and an enhanced plane is encoded by referring to the base plane without converting the RGB color space signal into YCbCr color space signal to reduce a redundancy between RGB planes and improve a compression ratio of an image.

Method for coding RGB color space signal

Disclosed herein is an adaptive motion estimation and mode decision apparatus and method for an H.264 video codec. The apparatus includes a background image detection unit, an inter mode inspection unit, an intra mode inspection unit and a mode inspection skip unit. The background image detection unit inspects whether a fixed background or slowly and regularly moving block exists, and skips the step of dividing a first corresponding macroblock into smaller sized blocks and performing block mode inspection. The inter mode inspection unit inspects whether an irregularly or fast moving macroblock exists, and determines whether to divide a corresponding macroblock into smaller sized blocks and to perform block mode inspection on the smaller sized blocks. The intra mode inspection unit performs AZCB inspection on the macroblocks, and determines whether to divide a corresponding macroblock into smaller sized blocks block and to perform mode inspection on the smaller sized blocks. The mode inspection skip unit skips the block mode inspection for the smaller sized blocks.

Adaptive motion estimation and mode decision apparatus and method for H.264 video codec

An effective H.264/AVC CAVLC decoding method is disclosed. In accordance with the method a VLC code is classified into groups according to a correlation thereof, an arithmetic equation is defined for each of the groups, and a decoding is carried out according to the arithmetic equation in order to minimize a memory access by a table look-up and reduce a decoding time and a power consumption.

Effective decoding method of H.264/AVC context-based adaptive variable length coding

Growing community of inventors

Anyang-si, South Korea

Yong-Hwan Kim