TopHat

A rapid algorithm for tophat filter operator in discrete field

全场离散Tophat过滤操作的快速算法

A folded map ; a folded tophat is collapsed ; when a bird 's wings are brought close to the body they are spoken of as folded .

折叠着的地图；大礼帽已经折叠起来了；人们把鸟儿将翅膀收近身体称为折起了翅膀。

In research we find some details can be removed by enhancing dark features and noise be amplified by emphasizing smaller features . So the features are extracted from recursively opened images by white tophat transformation .

本研究表明，使用暗特征增强图像会使图像丢失一些细节，加强小尺寸特征会放大噪声，所以仅使用白tophat变换，从递归开运算后图像中提取特征。

It suppresses background and enhances targets by morphologic Tophat transform in spatial domain , and detects moving target by improved frame difference method in temporal domain , and then affirms target by adaptive segmentation of the fusion result and track association .

算法在空域上利用形态学Tophat滤波抑制背景增强目标，在时域上通过改进的帧间差分方法增强运动目标，两者融合后经自适应门限分割与航迹关联确认目标。