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Proceedings Paper

Algorithm of subpixel image matching with high accuracy
Author(s): Jianming Wu; Ganghui Zhou; Peng-Fei Shi
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Paper Abstract

The algorithms to obtain sub-pixel accuracy in image matching was discussed. The resampling and surface fitting methods characteristics was analyzed. The following improvement was made to alleviate the computation burden: At first, only the model is needed to be resampled n-times; Next, (2*n-1) sub-models are generated; Again, the NCs among each sub-model and the image are calculated; At last, the maximum among the sub-model is chosen and the shifts corresponding to this sub-model are the sub-pixel displacement required. Then a new algorithm was proposed to combine the resampling and surface fitting methods. The effectiveness of the proposed algorithm was validated by the experiment.

Paper Details

Date Published: 20 September 2001
PDF: 9 pages
Proc. SPIE 4552, Image Matching and Analysis, (20 September 2001); doi: 10.1117/12.441536
Show Author Affiliations
Jianming Wu, Shanghai Jiao Tong Univ. (China)
Ganghui Zhou, Shanghai Jiao Tong Univ. (China)
Peng-Fei Shi, Shanghai Jiao Tong Univ. (China)

Published in SPIE Proceedings Vol. 4552:
Image Matching and Analysis
Bir Bhanu; Jun Shen; Tianxu Zhang, Editor(s)

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