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Fast motion estimation based on the redundant wavelet for 2D+T wavelet coder

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Park, Heechan, Martin, Graham R. and Yu, Andy C. (2005) Fast motion estimation based on the redundant wavelet for 2D+T wavelet coder. In: Proceedings of the 9th International Workshop of Visual Content Processing and Representation (VLBV 2005), Sardinia, Italy, 15-16 Sep 2005

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Abstract

Scalable video coding utilizing the wavelet transform applied to both the spatial and temporal domains (3D-DWT) is of current interest in video coding. In the case of the 2D+t scheme, motion estimation is required to be conducted in the wavelet domain. We explore approaches that overcome the well-known shift-variant property of the wavelet transform so that motion is estimated accurately. Specifically, an algorithm using the redundant wavelet and phase-multi-hypothesis shows PSNR superiority but computational complexity is high. We propose a fast motion search method that significantly reduces computational complexity to as low as 2% of the existing algorithm yet still shows better performance than full-spatial motion estimation.

Item Type: Conference Item (Paper)
Subjects: Q Science > QA Mathematics > QA76 Electronic computers. Computer science. Computer software
Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Science > Computer Science
Library of Congress Subject Headings (LCSH): Wavelets (Mathematics), Video compression, Digital video, Coding theory, Image processing -- Digital techniques, Signal processing -- Digital techniques
Official Date: 2005
Dates:
DateEvent
2005Available
Status: Peer Reviewed
Publication Status: Published
Conference Paper Type: Paper
Title of Event: Proceedings of the 9th International Workshop of Visual Content Processing and Representation (VLBV 2005)
Type of Event: Workshop
Location of Event: Sardinia, Italy
Date(s) of Event: 15-16 Sep 2005

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