摘要
传统的Harris角点检测算法检测率和可重复率高,但无法满足实时性要求,而Trajkovic等提出的角点检测器虽然计算量小,但是易对边缘产生伪响应,针对这些问题,提出一种新的基于Harris的快速角点检测算法。该算法使用多格算法,并使用四个基础方向上最小强度变化作为预处理结果,再使用自相关矩阵得到角点的响应函数。实验结果表明,新算法改进了Harris算法和MIC算法,能够有效地抑制边缘响应及纹理角点,并且能够满足实时性要求。
Conventional Harris comer detector is a desirable detector in terms of detection and repeatability rate,but it can not satisfy the demands of the realtime applications.MIC comer detector requires small computation time,however it responde too readily to certain diagonal edges.For this reason, the paper proposes a new comer detection algorithm.The new comer detection algorithm adopts multigrid algorithm, uses minimum of the intensity change of the four principle directions as the result of the preprocessing,and uses the autocorrelation matrix to get the comer response function.The experimental results indicate that the new algorithm improves Harris and MIC algorithm, can eliminate edge response and texture comers and satisfy the demands of real-time applications.
出处
《计算机工程与应用》
CSCD
北大核心
2011年第12期159-161,164,共4页
Computer Engineering and Applications
