基于Shi-Tomasi的太赫兹人体图像边缘物体识别

为了提高太赫兹安检系统对人体图像边缘物体识别的准确率,提出了一种基于Shi-Tomasi算子的角点特征识别算法.首先对原始图像进行预处理,经二值化、腐蚀膨胀、边缘平滑后消除人体轮廓中孤立的噪声和边缘刺峰;然后将Shi-Tomasi算子筛选后的人体轮廓强角点与垂直方向阈值范围内的相邻角点连线,并根据连线两侧遍历像素变化点...

Edge object recognition of terahertz human image based on Shi-Tomasi

In order to improve the accuracy of terahertz security system in image recognition of human body edge objects, a corner feature recognition algorithm based on Shi-Tomasi operator was proposed. The algorithm dealt with the original image preprocessing, the binarization, corrosion expansion and edge smooth after eliminating the body contour in the isolated noise and the edge of the peak. Then, the Shi-Tomasi operator was used for strong corner threshold and vertical direction within the scope of the adjacent corner point of attachment. According to the attachment on both sides of the cross point, body edge recognition was realized. Experiments show that the algorithm has a fast recognition speed and a recognition rate of more than 98% for human body edge recognition. It is suitable for the recognition of object edges in the terahertz images.