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A new method of affine object recognition and affine parameters estimation is presented. For a real-time image and a group of templates, firstly, we segment the object regions in them and compute their covariant matrices. Secondly, normalize the ellipse regions defined by covariant matrices to circle regions to get rotational invariants, and compute the similarity function value between rotational...
A particular kind of invariants known as moment invariants have been used for object recognition and identification due to its invariabilities under translation, rotation and similitude transformation and approximate invariability even under small-scale perspective transformation, while contours representing shapes and structures play key role in people's tasks of reorganization and identification...
Taking Asian-Pacific robot contest as the background and robot vision system as the object of research, the target recognition arithmetic based on color information is introduced. It proposed eight connection clustering arithmetic based on color double thresholds in HSI color space. H-S double threshold is discussed deeply and pixels classed based on table is used, so calculating of image segmentation...
It is known that moment invariants for general projective transformations do not exist. This paper presents a novel method to derive moment invariants under two types of restricted projective transformations. For each type of restricted projective transformations, a complete set of moment invariants up to arbitrary order is presented in the explicit form. Experimental results indicate that they are...
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