Title :
Generalized-KFCS: Motion estimation enhanced Kalman filtered compressive sensing for video
Author :
Xin Ding ; Wei Chen ; Wassell, I.
Author_Institution :
Comput. Lab., Univ. of Cambridge, Cambridge, UK
Abstract :
In this paper, we propose a Generalized Kalman Filtered Compressive Sensing (Generalized-KFCS) framework to reconstruct a video sequence, which relaxes the assumption of a slowly changing sparsity pattern in Kalman Filtered Compressive Sensing [1, 2, 3, 4]. In the proposed framework, we employ motion estimation to achieve the estimation of the state transition matrix for the Kalman filter, and then reconstruct the video sequence via the Kalman filter in conjunction with compressive sensing. In addition, we propose a novel method to directly apply motion estimation to compressively sensed samples without reconstructing the video sequence. Simulation results demonstrate the superiority of our algorithm for practical video reconstruction.
Keywords :
Kalman filters; compressed sensing; data compression; image reconstruction; image sampling; image sequences; matrix algebra; motion estimation; video coding; generalized Kalman filtered compressive sensing; generalized-KFCS; motion estimation; state transition matrix estimation; video compression; video reconstruction; video sampling; video sequence; Compressed sensing; Image reconstruction; Indexes; Kalman filters; Motion estimation; Sensors; Video sequences;
Conference_Titel :
Image Processing (ICIP), 2014 IEEE International Conference on
Conference_Location :
Paris
DOI :
10.1109/ICIP.2014.7025259