Remote Dynamic Three-Dimensional Scene Reconstruction

CORC > 厦门大学 > 信息技术－已发表论文

	Remote Dynamic Three-Dimensional Scene Reconstruction
	Yang, You ; Liu, Qiong ; Ji, Rongrong ; Gao, Yue ; Ji RR(纪荣嵘)
刊名	http://dx.doi.org/10.1371/journal.pone.0055586
	2013
关键词	TECHNOLOGY
英文摘要	National Natural Science Foundation of China [61170194, 61202301]; International S&T Cooperation Program of China [2012DFG12010]; Xiamen University 985 Project; Remote dynamic three-dimensional (3D) scene reconstruction renders the motion structure of a 3D scene remotely by means of both the color video and the corresponding depth maps. It has shown a great potential for telepresence applications like remote monitoring and remote medical imaging. Under this circumstance, video-rate and high resolution are two crucial characteristics for building a good depth map, which however mutually contradict during the depth sensor capturing. Therefore, recent works prefer to only transmit the high-resolution color video to the terminal side, and subsequently the scene depth is reconstructed by estimating the motion vectors from the video, typically using the propagation based methods towards a video-rate depth reconstruction. However, in most of the remote transmission systems, only the compressed color video stream is available. As a result, color video restored from the streams has quality losses, and thus the extracted motion vectors are inaccurate for depth reconstruction. In this paper, we propose a precise and robust scheme for dynamic 3D scene reconstruction by using the compressed color video stream and their inaccurate motion vectors. Our method rectifies the inaccurate motion vectors by analyzing and compensating their quality losses, motion vector absence in spatial prediction, and dislocation in near-boundary region. This rectification ensures the depth maps can be compensated in both video-rate and high resolution at the terminal side towards reducing the system consumption on both the compression and transmission. Our experiments validate that the proposed scheme is robust for depth map and dynamic scene reconstruction on long propagation distance, even with high compression ratio, outperforming the benchmark approaches with at least 3.3950 dB quality gains for remote applications.
语种	英语
出版者	PUBLIC LIBRARY SCIENCE
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/92560]
专题	信息技术－已发表论文
推荐引用方式 GB/T 7714	Yang, You,Liu, Qiong,Ji, Rongrong,et al. Remote Dynamic Three-Dimensional Scene Reconstruction[J]. http://dx.doi.org/10.1371/journal.pone.0055586,2013.
APA	Yang, You,Liu, Qiong,Ji, Rongrong,Gao, Yue,&纪荣嵘.(2013).Remote Dynamic Three-Dimensional Scene Reconstruction.http://dx.doi.org/10.1371/journal.pone.0055586.
MLA	Yang, You,et al."Remote Dynamic Three-Dimensional Scene Reconstruction".http://dx.doi.org/10.1371/journal.pone.0055586 (2013).