Title :
Stereo video coding using distributed compressive sensing with joint dictionary
Author :
Huihui Bai ; Mengmeng Zhang ; Anhong Wang ; Yao Zhao
Author_Institution :
Inst. of Inf. Sci., Beijing Jiaotong Univ., Beijing, China
fDate :
Sept. 30 2012-Oct. 3 2012
Abstract :
For many practical applications, stereo-paired video is an important special case of multiview video coding (MVC). This paper presents a novel framework of stereo video coding based on distributed compressive sensing, which also can be easily extended to MVC. According to distributed video coding (DVC) at the encoder the video sequences from each view can be compressed independently without any communications between the cameras while at the decoder the inter-view correlation can be exploited for quality enhancement. Furthermore, due to compressive sensing (CS) principles, low complexity at the encoder side can result in low power consumption in the cameras, which may be promising in wireless camera sensor network. Here, the joint dictionary is applied in compressive sensing, which can make good use of inter-view and temporal correlation for better reconstruction quality of convex optimization. The experimental results validate the effectiveness of the proposed scheme with better performance than other compared schemes.
Keywords :
compressed sensing; convex programming; correlation methods; decoding; image reconstruction; image sequences; stereo image processing; video cameras; video coding; CS; DVC; MVC; camera; convex optimization; decoder; distributed compressive sensing; distributed video coding; encoder; inter-view correlation; joint dictionary; multiview video coding; power consumption; quality enhancement; reconstruction quality; stereo video coding; stereo-paired video; temporal correlation; video sequence; Cameras; Complexity theory; Correlation; Decoding; Dictionaries; Joints; Video coding; compressive sensing; distributed video coding; joint dictionary; stereo video coding;
Conference_Titel :
Image Processing (ICIP), 2012 19th IEEE International Conference on
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4673-2534-9
Electronic_ISBN :
1522-4880
DOI :
10.1109/ICIP.2012.6467003