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Detection of linear structure is a very important problem in image processing and computer vision. The task of finding lines in 2D images has long being studied, but the work in 3D space does not have any promising work yet. This paper investigates the issue of line detection for range images. It proposes an approach to find a wire-frame composed of lines that can represent precisely and comprehensively...
In this paper we analyze eye images that we have based on the structure characteristics of eyes, we put forward a novel iris location algorithm. Firstly, get a point in the pupil by gray summing operator and find three inner boundary points that are not on the same line by the direction edge detection template designed by ourselves and locate the iris inner circle rapidly. Finally, find four outer...
Iris location is an important part of iris recognition. Speed of location and robustness of arithmetic of location are factors which we must pay attention to especially. In this paper we analyse eye images that we have based on structure characteristics of eyes, we put forward a rapid iris location arithmetic. Firstly, we get an approximative center by gray projection, we get two points that locate...
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