Title :
Video super-resolution using low rank matrix completion
Author :
Jin Chen ; Nunez-Yanez, Jose ; Achim, Alin
Author_Institution :
Vision Inf. Lab., Univ. of Bristol, Bristol, UK
Abstract :
In this paper, a novel video super-resolution image reconstruction algorithm is proposed. We design a patch-based low rank matrix completion algorithm. The proposed algorithm addresses the problem of generating a high-resolution (HR) image from several low-resolution (LR) images, based on sparse representation and low-rank matrix completion. The approach represents observed LR frames in the form of sparse matrices and rearranges those frames into low dimensional constructions. Experimental results demonstrate that, high-frequency details in the super resolved images are recovered from the LR frames. The gains in terms of PSNR and SSIM are significant.
Keywords :
image reconstruction; image representation; image resolution; matrix algebra; LR frames; high-frequency details; high-resolution image; image reconstruction; low dimensional constructions; low-resolution image; patch-based low rank matrix completion; sparse matrices; sparse representation; video super-resolution; Low-rank Matrix Completion; Singular Value Thresholding; Video Super-Resolution;
Conference_Titel :
Image Processing (ICIP), 2013 20th IEEE International Conference on
Conference_Location :
Melbourne, VIC
DOI :
10.1109/ICIP.2013.6738283