Title :
A single image based blind super-resolution approach
Author :
Zhang, Wei ; Cham, Wai-Kuen
Author_Institution :
Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Hong Kong
Abstract :
In this paper, we address the problem of producing super- resolved image from a single low-resolution input. Unlike most previous work, the camera´s point spread function (PSF) is not assumed to be known in advance and the single image super-resolution problem is formulated as a blind deconvolution problem under a MAP framework which can be optimized effectively in an iterative manner. Experimental results demonstrate that our method can successfully generate super-resolved image with high quality, both subjectively and objectively.
Keywords :
deconvolution; image resolution; iterative methods; MAP framework; blind deconvolution problem; camera point spread function; image-based blind super-resolution; iterative method; Deconvolution; HDTV; Image coding; Image generation; Image reconstruction; Image resolution; Kernel; Markov random fields; Surveillance; Video compression; Image Super-resolution; Point Spread Function (PSF);
Conference_Titel :
Image Processing, 2008. ICIP 2008. 15th IEEE International Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-1765-0
Electronic_ISBN :
1522-4880
DOI :
10.1109/ICIP.2008.4711758