Wireless Sensor Network

Volume 2, Issue 1 (January 2010)

ISSN Print: 1945-3078   ISSN Online: 1945-3086

Google-based Impact Factor: 1  Citations  

A Method for Rapid Matching Based on Second Order Partial Derivative

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DOI: 10.4236/wsn.2010.21005    5,397 Downloads   9,222 Views  Citations

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ABSTRACT

Our goal is to enhance matching speed which is important for image engineering. Second Partial Derivative operator in Harris corner detector is directly used to compute the similarity between corners. Then initial matches are obtained. The algorithm is contrasted with normalized cross-correlation and method based on horizontal and vertical gradient. Its computational complexity is reduced and matching speed is improved effectively because this method only adopts the addition and subtraction operations. Experiments on several real images test the matching speed, the matching precision and matching rate of the algorithm. The results demonstrate that the algorithm not only have higher speed but also get higher matching precision and correct matching rate. Even though the stereo image pairs have brightness differences, it still performs rather well.

Share and Cite:

H. YU, Z. ZHOU, Z. ZHAO and X. QIAO, "A Method for Rapid Matching Based on Second Order Partial Derivative," Wireless Sensor Network, Vol. 2 No. 1, 2010, pp. 37-42. doi: 10.4236/wsn.2010.21005.

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