Title : 
Eye-contact visual communication with virtual view synthesis
         
        
            Author : 
Liu, Yuyu ; Yamaoka, Keisuke ; Sato, Hiroyuki ; Nakamura, Akira ; Iwai, Yoshiaki ; Ooi, Ken-Ichiro ; Wu, Weiguo ; Yoshigahara, Takayuki
         
        
            Author_Institution : 
Inf. Technol. Lab., Sony Corp., Tokyo, Japan
         
        
        
        
        
        
            Abstract : 
In this paper, we propose a new visual communication system where eye contact is possible by using a virtual image. The virtual image is obtained by view synthesis with stereo matching from two real camera views. We developed a region based dynamic programming (DP) approach with improved matching cost, occlusion cost and vertical smoothness constraint. We also proposed a fast view interpolation method. To achieve real time performance, we developed a hardware system. Furthermore, to avoid the reordering problem in the foreground region, a view change approach with disorder detection is adopted. Experimental results demonstrate the validity of our improved DP matching algorithm and eye-contact visual communication system.
         
        
            Keywords : 
cameras; dynamic programming; interpolation; real-time systems; stereo image processing; visual communication; disorder detection; dynamic programming approach; eye-contact visual communication system; interpolation method; occlusion; real-time system; stereo camera; stereo matching; vertical smoothness constraint; view change approach; virtual image; virtual view synthesis; Cameras; Change detection algorithms; Costs; Dynamic programming; Hardware; Information technology; Interpolation; Network synthesis; Real time systems; Visual communication;
         
        
        
        
            Conference_Titel : 
Consumer Communications and Networking Conference, 2005. CCNC. 2005 Second IEEE
         
        
            Print_ISBN : 
0-7803-8784-8
         
        
        
            DOI : 
10.1109/CCNC.2005.1405175