FEATURE-ORIENTED IMAGE-ENHANCEMENT USING SHOCK FILTERS
FEATURE-ORIENTED IMAGE-ENHANCEMENT USING SHOCK FILTERS
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DOI：
10.1137/0727053
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发表时间：
1990-08-01
影响因子：
2.9
通讯作者：
RUDIN, LI
中科院分区：
文献类型：
--
作者：
OSHER, S;RUDIN, LI
提出了一种用于图像增强的冲击滤波器。该滤波器采用新的非线性时变偏微分方程及其离散化。通过，，偏微分方程的解满足极大值原理。而且，对于任意固定的参数，解的总变差与初始数据的总变差相同。处理后的图像是分段光滑，非振荡，和跳跃发生在一个椭圆算子（边缘检测器）的零。该算法速度较快，易于编程实现。
Shock filters for image enhancement are developed. The filters use new nonlinear time dependent partial differential equations and their discretizations. The evolution of the initial imageasinto a steady state solutionthrough,, is the filtering process. The partial differential equations have solutions which satisfy a maximum principle. Moreover the total variation of the solution for any fixedis the same as that of the initial data. The processed image is piecewise smooth, nonoscillatory, and the jumps occur across zeros of an elliptic operator (edge detector). The algorithm is relatively fast and easy to program.