Adaptive Block Size Coding System for High-Difinition Moving Picutre.

Adaptive block-size transform coding for image compression

In this paper we report the results of an adaptive blocksize transform coding scheme that is based on the sequential JPEG algorithm. This minimum informationoverhead method implies a transform coding technique with two di erent block sizes: N N and 2N 2N pixels. The input image is divided into blocks of 2N 2N pixels and each of these blocks is classi ed according to its image activity. Dependin...

High-Performance Wavelet-Based Video Coding Using Variable Block-Size Motion Compensation and Adaptive Arithmetic Coding

In this paper, we present a wavelet-based video coding algorithm within a conventional hybrid framework of temporal motion-compensated prediction and transform coding. Our proposed algorithm involves the incorporation of multi-frame motion compensation as an effective means of improving the quality of the temporal prediction. For an efficient coding control, we follow the rate-distortion optimi...

A Fast Block Size Decision For Intra Coding in HEVC Standard

Intra coding in High efficiency video coding (HEVC) can significantly improve the compression efficiency using 35 intra-prediction modes for 2N×2N (N is an integer number ranging from six to two) luma blocks. To find the luma block with the minimum rate-distortion, it must perform 11932 different rate-distortion cost calculations. Although this approach improves coding efficiency compared to th...

A Fast Block Size Decision For Intra Coding in HEVC Standard

Intra coding in High efficiency video coding (HEVC) can significantly improve the compression efficiency using 35 intra-prediction modes for 2N×2N (N is an integer number ranging from six to two) luma blocks. To find the luma block with the minimum rate-distortion, it must perform 11932 different rate-distortion cost calculations. Although this approach improves coding efficiency compared to th...

Adaptive block transforms for hybrid video coding