[Paper] Disparity Compensation Framework for Light-Field Coding Using Weighted Binary Patterns

• Isechi Kohei

  Graduate School of Engineering, Nagoya University

• Takahashi Keita

  Graduate School of Engineering, Nagoya University

• Fujii Toshiaki

  Graduate School of Engineering, Nagoya University

Abstract

We propose a disparity compensation framework for efficient light-field coding. We have proposed a novel lightfield coding scheme of approximating a light field with the sum of weighted binary patterns. This coding scheme achieves comparable performance to the modern video coding standards H.265/HEVC and enables a dramatically simple decoding process, but its computational complexity for encoding is quite high. We have also proposed a progressive coding scheme that progressively encodes the target light field with a small number of weighted binary patterns in a step-by-step manner. The progressive scheme remarkably mitigates the computational complexity, but its rate-distortion performance is degraded. To address the above problems, we design a disparity compensation framework, which can be applied to the existing progressive coding, to improve the rate-distortion performance while keeping feasible computational complexity. Experimental results demonstrate that the proposed method improves the rate-distortion performance of the progressive coding without a computational complexity explosion.

Journal

• ITE Transactions on Media Technology and Applications

  ITE Transactions on Media Technology and Applications 8 (1), 40-48, 2020

  The Institute of Image Information and Television Engineers

Keywords

• Light-field coding
• Progressive coding
• Disparity compensation

Details

• CRID: 1390846609790632320
• NII Article ID: 130007779383
• DOI: 10.3169/mta.8.40
• ISSN: 21867364
• Web Site: https://www.jstage.jst.go.jp/article/mta/8/1/8_40/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed