Title : 
Temporal derivatives in compressed video sensing
         
        
            Author : 
Hosseini, Mahdi S. ; Plataniotis, Konstantinos N.
         
        
            Author_Institution : 
ECE Dept., Univ. of Toronto, Toronto, ON, Canada
         
        
        
        
        
        
            Abstract : 
In this paper we propose a method to incorporate the inter-frame correlation to the problem of compressed video sensing (CVS) by means of high-order accuracy differential approximations. In particular, we encode high-frequency motion dynamics between consecutive frames in order to recover video data from under-sampled scheme. The proposed methodology couples the problem of compressed video sampling with motion dynamics to provide a unique protocol for CVS recovery. Numerical evaluations validate the proposed method by tracking high-frequency components between consecutive frames in video and effectively enhancing the recovery performance compared to the conventional CVS methods.
         
        
            Keywords : 
approximation theory; data compression; differential equations; image sequences; motion compensation; motion estimation; signal sampling; video coding; CVS recovery; compressed video sampling; compressed video sensing; high-frequency component tracking; high-frequency motion dynamics; high-order accuracy differential approximation; interframe correlation; motion compensation; motion estimation; numerical evaluation; temporal derivatives; undersampled scheme; video consecutive frames; video data recovery; Accuracy; Approximation methods; Dynamics; Image coding; Image reconstruction; Kernel; Sensors;
         
        
        
        
            Conference_Titel : 
Multimedia Signal Processing (MMSP), 2012 IEEE 14th International Workshop on
         
        
            Conference_Location : 
Banff, AB
         
        
            Print_ISBN : 
978-1-4673-4570-5
         
        
            Electronic_ISBN : 
978-1-4673-4571-2
         
        
        
            DOI : 
10.1109/MMSP.2012.6343411