Algorithm of subpixel image matching with high accuracy

Jianming Wu; Ganghui Zhou; Peng-Fei Shi

doi:10.1117/12.441536

20 September 2001 Algorithm of subpixel image matching with high accuracy

Jianming Wu, Ganghui Zhou, Peng-Fei Shi

Proceedings Volume 4552, Image Matching and Analysis; (2001) https://doi.org/10.1117/12.441536
Event: Multispectral Image Processing and Pattern Recognition, 2001, Wuhan, China

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.

Citation Download Citation

Jianming Wu, Ganghui Zhou, and Peng-Fei Shi "Algorithm of subpixel image matching with high accuracy", Proc. SPIE 4552, Image Matching and Analysis, (20 September 2001); https://doi.org/10.1117/12.441536

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