WSEAS Transactions on Signal Processing
Print ISSN: 1790-5052, E-ISSN: 2224-3488
Volume 11, 2015
Comparisons between Sub-Pixel Estimation Techniques in H.264/AVC and VC-1 Video Coding Standards
Authors: , ,
Abstract: The VC-1 is an advanced video standard developed by Microsoft, while the H.264/AVC is developed by the ITU-T Video Coding Experts Group together with the ISO/IEC JTC1 Moving Picture Experts Group. Both standards use advanced techniques of compression to reduce redundancies in a video sequence. Although the Motion Estimation technique plays a fundamental role to reduce the temporal redundancy, it is still not enough in the case of small Motion Estimation. To ensure a good temporal prediction, some video standards propose a technique of Fractional or Sub-pixel Motion Estimation. This paper shows the efficiency of this technique, it presents the used algorithms in these standards and discusses the effectiveness of each one. Comparisons are made by using two video quality assessment metrics as well as a visual evaluation. The computation time, which is fundamental for real time transmission, in experimental results is also an important evaluation criterion in this work.
Search Articles
Keywords: Block-matching, H.264/AVC standard, image interpolation, image quality assessment, Fractional Motion Estimation, VC-1 standard, video coding
Pages: 204-217
WSEAS Transactions on Signal Processing, ISSN / E-ISSN: 1790-5052 / 2224-3488, Volume 11, 2015, Art. #25