摘要
随着虚拟现实、增强现实等沉浸式媒体技术的发展,沉浸式视频的表示、存储、传输和显示等各个环节都受到了科研及产业界的广泛关注。沉浸式视频更复杂的视频特性和庞大的数据量,对传统视频编码技术提出了挑战,新的编码技术应运而生。该文从视频自由度(DoF)出发,分别从3DoF和6DoF两个方面介绍沉浸式视频编码技术的最新成果。3DoF视频相关编码技术包括投影模型、运动估计模型和3DoF视频编码标准。6DoF视频相关编码技术包括视频表示形式、虚拟视点合成技术、6DoF视频编码技术及运动图像专家组沉浸式视频(MPEG,MIV)编码标准。最后,对沉浸式视频及其编码技术的发展进行总结和展望。
With the development of immersive media technologies such as virtual reality and augmented reality,the presentationm,storage and transmission of immersive video has received a lot of attention in both research and industry field.Due to the more complex video characteristics and huge data volume,the traditional coding techniques are not efficient for immersive video coding.How to present and encode the immersive video more efficiently is a challenge.Based on the Degree of Freedom(DoF),3DoF and 6DoF formats of immersive video are introduced respectively in this paper.Firstly,3DoF video related coding techniques including projection model,motion estimation are introduced,and then,3DoF video coding standard is discussed.In 6DoF format video coding,the video representation,virtual viewpoint synthesis techniques,6DoF video coding techniques and Moving Picture Experts Group Immersive Video(MPEG,MIV)video coding standard are illustrated.Finally,the development of immersive video and its coding technology is summarized and prospected.
作者
曾焕强
孔庆玮
陈婧
朱建清
施一帆
侯军辉
ZENG Huanqiang;KONG Qingwei;CHEN Jing;ZHU Jianqing;SHI Yifan;HOU Junhui(School of Information Science and Engineering,Huaqiao University,Xiamen 361021,China;School of Engineering,Huaqiao University,Quanzhou 362021,China;Department of Computer Science,City University of Hong Kong,Hong Kong 999077,China)
出处
《电子与信息学报》
EI
CAS
CSCD
北大核心
2024年第2期602-614,共13页
Journal of Electronics & Information Technology
基金
国家重点研发计划(2021YFE0205400)
福建省自然科学基金(2023J02022,2022J06023,2022J01294)
福厦泉国家自主创新示范区协同创新平台项目(2021FX03)
福建省教改项目(FBJY20230328)。
