Harris Corner Detection Algorithm at Sub-pixel Level and Its Application
Yuanfeng Han, Peijiang Chen, Tian Meng · Advances in computer science research · 2015
The corner is one of the most important features of image and the corner detection plays an important role in digital image processing technology.The performance of Harris corner detection algorithm is stable and it is widely applied, but the corner location is pixel level which affects the subsequent image processing.In order to improve the performance of corner detection, the harris algorithm is improved.On the basis of analyzing the principle of Harris corner detection algorithm, the sub-pixel level corner position based on the Gauss surface method is extracted.The extracted corners is applied in images matching.The experimental results show that the Harris corner detection algorithm can extract high accurate corners.At the same time, the image matching based on this algorithm has higher precision.