Title :
Adaptive Directional Window Selection for Edge-Directed Interpolation
Author :
Wong, Chi-Shing ; Siu, Wan-chi
Author_Institution :
Dept. of Electron. & Inf. Eng., Hong Kong Polytech. Univ., Kowloon, China
Abstract :
In this paper, we present an adaptive directional window selection for the edge-directed interpolation. The new window selection can solve the problem of covariance mismatch in high frequency and texture regions. It makes use of a practical directional elliptic window which works according to the edge direction sliding along an edge and then subsequently chooses the best window evaluated by choosing the elliptic window which has the lowest Means Square Error (MSE). Experimental results show that by the proposed technique can generate a high quality interpolated image which is better than other edge directed interpolation approaches. Experimental results also provided on different images to justify the value of this approach at the end of the paper.
Keywords :
image texture; interpolation; mean square error methods; MSE method; adaptive directional window selection; covariance mismatch; directional elliptic window; edge-directed interpolation; image interpolation; means square error method; texture regions; Filtering; Image edge detection; Image reconstruction; Interpolation; Pixel; Visualization; Wiener filter;
Conference_Titel :
Computer Communications and Networks (ICCCN), 2010 Proceedings of 19th International Conference on
Conference_Location :
Zurich
Print_ISBN :
978-1-4244-7114-0
DOI :
10.1109/ICCCN.2010.5560064