Peer Review - Efficient Motion Field Interpolation Method for Wyner-Ziv Video Coding

Dr. I Made Oka Widyantara, ST, MT, I MADE OKA WIDYANTARA (2011) Peer Review - Efficient Motion Field Interpolation Method for Wyner-Ziv Video Coding. Telkomnika, 09. ISSN 1693-6930

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Wyner-Ziv video coding has the capability to reduce video encoding complexity by shifting motion estimation procedure from encoder to decoder. Amongst many motion estimation methods, expectation maximization algorithm is the most effective one. Unfortunately, the implementation of block-based motion estimation in this algorithm causes motion field profile bounded by granularity of block size. Nearestneighbor and bilinear interpolation methods have already applied in multiview image coding to handle similar problem. This paper aims to evaluate performance of both interpolation methods in transform domain Wyner-Ziv video codec. Results showed that bilinear interpolation effective only for high motion video sequences. In this scenario, it has bitrate saving up to 3.29 %, 0.2 dB higher PSNR, and 12.30 % higher decoding complexity compared to nearest-neighbor. In low motion video content, bitrate saving only gained up to 0.82%, with almost the same PSNR, while decoding complexity increase up to 10.32%.

Item Type: Article
Uncontrolled Keywords: bilinear, motion field interpolation, nearest-neighbor, Wyner-Ziv video coding
Subjects: L Education > L Education (General)
Divisions: Faculty of Law, Arts and Social Sciences > School of Education
Depositing User: Mr. Repository Admin
Date Deposited: 07 Jun 2016 21:58
Last Modified: 21 Jun 2016 05:58

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