【摘 要】
：
The estimation of affine transform is a crucial problem in the image recognition field. This paper resorted to some invariant properties under translation, rota
【机 构】
：
Dept. of Electronic Eng.
【基金项目】
：
国家自然科学基金;国家高技术研究发展计划(863计划)
论文部分内容阅读
The estimation of affine transform is a crucial problem in the image recognition field. This paper resorted to some invariant properties under translation, rotation and scaling, and proposed a simple method to estimate the affine transform kernel of the two-dimensional gray image. Maps, applying to the original, produce some correlative points that can accurately reflect the affine transform feature of the image. Furthermore, unknown variables existing in the kernel of the transform are calculated. The whole scheme only refers to one-order moment,therefore, it has very good stability.
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