【作者】 刘华杰；

【导师】 殷福亮； 陈喆；

【作者基本信息】 大连理工大学 ， 通信与信息系统， 2010， 硕士

【摘要】 3D视频,又叫立体视频,包括双目立体视频和多视点视频,因其具有立体感和交互性的特点,越来越受到学术界和工业界的重视,随着视频技术的发展进步,立体视频将最终将取代HDTV,成为未来视频的发展方向。然而,由于立体视频需要同时传送多个视频流,在给用户带来立体感的同时,也造成了数据量的急剧增加,如果没有高效的编解码方法,将很难存储和传输。因此,本文的重点是对3D视频编解码器性能改进的研究。本文首先介绍了立体视频的概念、应用,现有的立体视频编解码方法,以及多视点视频的标准化过程,阐述了H.264视频编解码的关键技术,对其与立体视频有关的技术进行了重点研究。其次,介绍了基于H.264的多视点视频编码(MVC)方法,该方法联合使用视点预测和运动预测,具有很高的压缩性能,并概括了MVC的研究内容,对其预测结构进行了深入的分析。最后,提出了MVC预测结构的调整策略,调整了I视点的位置并去除了部分视点问预测,测试结果表明,本文提出的预测结构可以在略微影响多视点视频编解码效率的前提下,提高多视点视频的随机访问性能,并降低MVC的编码复杂度。更多还原

【Abstract】 3D video includes stereo video and multi-view video, which can provide viewers with benefits of realism and selective viewing. Researchers in video field become more and more interested in it. With the development of video coding technology,3D video will replace HDTV and become the novel research area in video technology.However, compared to single view video, the data amount of multi-view video increases along with the increase of the view number. So more effective method to encode the video data must be attained in order to make 3D video storage and transition easier. Thus we focus on improving the performance of codec in this paper.Firstly, there will be some talk about conception of 3D video, the application of it and following it, some key technology of H.264 video coding will be introduced.Secondly, multi-view video coding method based on H.264 will be discussed. It uses disparity prediction and motion prediction, so it proves to be a good method for 3D video coding. There will be a discussion about research of MVC. It’s coding structure will be analysed.Lastly, some improvements about the existing coding structure are made, the selection of I-view is adjusted and some inter-view prediction is removed. Based on the test result, we can say that the improved structure can improve the random access performance and reduce coding complexity without affecting the performance of MVC too much.更多还原