Short Communication: A pixel-wise directional intra prediction method

Authors:
Yunfei Wang;Jianwen Chen;Yun He
Affiliations:
State Key Laboratory on Microwave and Digital Communications, Tsinghua National Laboratory for Information Science and Technology, Department of Electronic Engineering, Tsinghua University, Beijin ...;State Key Laboratory on Microwave and Digital Communications, Tsinghua National Laboratory for Information Science and Technology, Department of Electronic Engineering, Tsinghua University, Beijin ...;State Key Laboratory on Microwave and Digital Communications, Tsinghua National Laboratory for Information Science and Technology, Department of Electronic Engineering, Tsinghua University, Beijin ...
Venue:
Journal of Visual Communication and Image Representation
Year:
2012

Citing 6
Cited 0

JPEG optimization using an entropy-constrained quantization framework

DCC '95 Proceedings of the Conference on Data Compression
Discrete Cosine Transfom

IEEE Transactions on Computers
Soft decision quantization for H.264 with main profile compatibility

IEEE Transactions on Circuits and Systems for Video Technology
Perceptual visual quality metrics: A survey

Journal of Visual Communication and Image Representation
Improved lossless intra coding for H.264/MPEG-4 AVC

IEEE Transactions on Image Processing
Rate-constrained coder control and comparison of video coding standards

IEEE Transactions on Circuits and Systems for Video Technology

Quantified Score

Hi-index	0.00

Visualization

Abstract

In a decade where the prominence of video applications has become increasingly prevalent, the optimization of video coding processes remains as important as ever. The directional intra prediction has been proved as an effective tool for intra picture coding. However, in a directional intra prediction based coding structure, there is a considerable gap between the transform efficiency of DCT and the optimal transform KLT. In this paper, we analyze these problems and propose a pixel-wise directional intra prediction (PDIP) method to solve this problem. This method exploits the reconstruction value of the adjacent pixels to predict the current pixel, and keeps the block-based lossy coding structure of H.264/AVC. The proposed method can significantly improve the coding efficiency with little decoding complexity increment.