计算机工程 ›› 2013, Vol. 39 ›› Issue (1): 298-302.doi: 10.3969/j.issn.1000-3428.2013.01.066

• 开发研究与设计技术 • 上一篇    下一篇

基于小波变换的多视角视频可伸缩编码系统

金雪松1,2,赵志杰2,林茂六1   

  1. (1. 哈尔滨工业大学电子与信息工程学院,哈尔滨 150001;2. 哈尔滨商业大学计算机与信息工程学院,哈尔滨 150028)
  • 收稿日期:2012-03-06 修回日期:2012-05-18 出版日期:2013-01-15 发布日期:2013-01-13
  • 作者简介:金雪松(1975-),男,副教授、博士研究生,主研方向:图像处理,多媒体编码;赵志杰,教授、博士;林茂六,教授
  • 基金项目:
    国家自然科学基金资助项目(61171062);黑龙江省自然科学基金资助项目(F201114)

Scalable Coding System of Multi-view Video Based on Wavelet Transform

JIN Xue-song 1,2, ZHAO Zhi-jie 2, LIN Mao-liu 1   

  1. (1. School of Electronics and Information Engineering, Harbin Institute of Technology, Harbin 150001, China; 2. School of Computer and Information Engineering, Harbin University of Commerce, Harbin 150028, China)
  • Received:2012-03-06 Revised:2012-05-18 Online:2013-01-15 Published:2013-01-13

摘要: 构建基于离散小波的多视角编码系统。对多视角视频进行四维小波分解,包括一维时间分解、一维视角分解和二维空间分解。利用小波的多分辨特性和嵌入式编码器时间、空间、视角及质量可伸缩的特点,在一定带宽限制下,采用率失真优化的方法对各个子带的码率进行优化截断。实验结果表明,该编解码系统具有较好的视频重建图像质量。

关键词: 视频编码, 多视角视频, 可伸缩性, 小波变换, 运动补偿, 视差补偿

Abstract: This paper proposes a multi-view video coding system based on Discrete Wavelet Transform(DWT). The proposed scheme carries out four-dimension wavelet decomposition on multi-view video sequences, including temporal one-dimension decomposition, view one-dimension decomposition, and two-dimension spatial decomposition. Besides utilizing the intrinsic multi-resolution feature of DWT, the proposed scheme incorporates the embedded entropy coder for accomplishing temporal, spatial, view and quality scalabilities. According to various constrain of broad width, the coding stream of each subband can be optimal truncated by rate distortion optimization. Simulation results demonstrate that the reconstructed picture quality is maintained in this coding system.

Key words: video coding, multi-view video, scalability, wavelet transform, motion compensation, parallax compensation

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