数字图象几何变换的B样条算法和硬件实现
B SPLINE ALGORITHM FOR GEOMETRIC TRANSFORMATION OF DIGITAL IMAGE AND HARDWIRED IMPLEMENTATION
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摘要: 本文提出了一种利用B样条函数进行数字图象几何变换的算法。在给定一组特殊的规则控制栅格点的条件下,构成B样条变换式。此变换算法保证给出的控制栅格点的准确对应,可得较高的精度。在小型图象处理系统中可用一种专用的变换解算装置来实现。 本文还提出开窗几何变换的自动实现。
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关键词:
Abstract: In this paper, the algorithm of using B spline function for geometric transformation of digital image is presented. Given a group of special regular controlling points, B spline function for transformation is formed. The algorithm guarantees precise correspondence between controlling points, higher precision can be obtained. It can be implemented in a minicomputer digital image processing system with a special hard-wired device.This paper also points out that the geometric window transformation can be implemented automatically. -
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