Title :
Fast image super-resolution using Connected Component enhancement
Author :
Wang, Jinjun ; Gong, Yihong
Author_Institution :
NEC Labs. America, Inc.., Cupertino, CA
fDate :
June 23 2008-April 26 2008
Abstract :
The paper focuses on reconstructing the discontinuity between homogenous color regions in an interpolated image to improve its perceptual quality. A low-resolution input image is firstly interpolated and then decomposed into several patches. Each patch is then segmented into multiple homogenous regions using connected component analysis technique. Then a spatial-filter is applied to enhance the color/intensity transition between neighboring components. The designed spatial-filter combines the advantages of both bilateral-filtering and unsharp masking methods, with high computational efficiency. The proposed method can be used for image/video super-resolution applications. Experimental results are promising.
Keywords :
filtering theory; image enhancement; image resolution; interpolation; spatial filters; bilateral-filtering; color/intensity transition; connected component enhancement; homogenous color regions; image super-resolution; low-resolution input image; perceptual quality; spatial-filter; unsharp masking methods; Cameras; High definition video; Image reconstruction; Image resolution; Interpolation; National electric code; Signal resolution; Spatial resolution; Strontium; Videoconference;
Conference_Titel :
Multimedia and Expo, 2008 IEEE International Conference on
Conference_Location :
Hannover
Print_ISBN :
978-1-4244-2570-9
Electronic_ISBN :
978-1-4244-2571-6
DOI :
10.1109/ICME.2008.4607395