photodichroic matched spatial filter

In order to design a spatially matched filter to limit the influence of background noise on correlation spot on the output correlation plane,the function of the matched filter and the Fourier spectrum of the background noise were compared,and the amplitude of the matched filter was nonlinearly modulated based on the magnitude of their difference.

在空间匹配滤波器设计过程中,为抑制输入场景中背景噪音对输出相关平面上相关点的影响,通过比较匹配滤波函数和背景噪音的傅里叶谱,根据两者差值的量级对匹配滤波函数的振幅进行非线性调制,在匹配滤波过程中使设计的空间匹配滤波器对强噪音的傅里叶谱处透过率降低,而尽量保持输入图像傅里叶谱的高透过率,从而增加输出相关平面上的信噪比,实现相关点的正确探测。

Technique of IR background suppression based on spatial matched filter;

基于空间匹配滤波的红外背景抑制技术

The suggested way for overcoming the difficulty is image pre-processing by spatial matched filtering when the s.

指出经典的图象二值化变换分割后作形心估计的方法面临着估计偏差和方差的矛盾 ,提出了用自适应交互三模型 (ATIMM)跟踪图象序列中机动目标的方法 ,同时发现在了解目标形状的条件下 ,空间匹配滤波 ,二值变换点集聚类和 ATIMM三者的结合对图象序列中的机动目标具有最好的跟踪性