An efficient dual-interpolator architecture for subpixel motion estimation

Yueh Yi Wang*, Chun-Jen Tsai

*Corresponding author for this work

Research output: Contribution to journalConference article

4 Scopus citations

Abstract

New generation of video codecs typically adopts a sophisticated interpolation filter for sub-pixel motion estimation (ME). For embedded applications, it is crucial to reduce both the memory requirement and the computational complexity for sub-pixel ME. The key observation in this paper is that the interpolation filter for motion estimation and the filter for coding do not have to be the same. By adopting a simpler on-the-fly interpolation filter during ME process and a standard-compliant filter for coding purpose, both memory and complexity can be reduced with very little coding performance degradation. Since Hadamard transformed-SAD is often used in high quality codecs as a better matching measure, we further show that the ME interpolation filer can be combined with Hadamard transform for efficient VLSI implementation. Initial results show very promising performance of the proposed system.

Original languageEnglish
Article number1465235
Pages (from-to)2907-2910
Number of pages4
JournalProceedings - IEEE International Symposium on Circuits and Systems
DOIs
StatePublished - 1 Dec 2005
EventIEEE International Symposium on Circuits and Systems 2005, ISCAS 2005 - Kobe, Japan
Duration: 23 May 200526 May 2005

Fingerprint Dive into the research topics of 'An efficient dual-interpolator architecture for subpixel motion estimation'. Together they form a unique fingerprint.

Cite this