DocumentCode :
1602745
Title :
Edge-based image interpolation approach for video sensor network
Author :
Shi, Jinglun ; Cai, Kang ; Xiong, Shangkun ; Wei, Gang
Author_Institution :
Sch. of Electron. & Inf. Eng., South China Univ. of Technol., Guangzhou, China
fYear :
2011
Firstpage :
1
Lastpage :
4
Abstract :
Distributed video sensors usually use fairly low-resolution images due to the limited transmission bandwidth in transmitting images. It is potential to enhance the captured low-resolution images using image resolution enhancement technique that is able to produce a high-resolution image from its low-resolution counterpart. The key challenge of image resolution enhancement is to preserve the edge structure in images. In this paper, a new image resolution enhancement approach is proposed to estimate the pixel using a bilateral weighted average of its neighboring pixels. First, the neighboring pixels with nearer distance have larger contributions. Second, the neighboring pixels belonging to direction with smaller variation have larger contributions. Experimental results are provided to show that the proposed approach outperforms several conventional edge-directed image interpolation algorithms. Furthermore, the proposed approach yields low computational complexity; it is potential for real-time implementation.
Keywords :
edge detection; image enhancement; image resolution; interpolation; multimedia communication; video communication; video signal processing; wireless sensor networks; bilateral weighted average; distributed video sensors; edge structure preservation; edge-based image interpolation approach; image resolution enhancement technique; image transmission; pixel estimation; transmission bandwidth; video sensor network; Educational institutions; Image edge detection; Image reconstruction; Image resolution; Interpolation; Spline;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Information, Communications and Signal Processing (ICICS) 2011 8th International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4577-0029-3
Type :
conf
DOI :
10.1109/ICICS.2011.6173576
Filename :
6173576
Link To Document :
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