基于边缘信息及光照方向的阴影检测算法  

Shadow Detection Algorithm Based on Edge Information and Illumination Direction

作　　者：林坤杰[1] 万晓冬[1] 

机构地区：[1]南京航空航天大学自动化学院测试系,南京210012

出　　处：《计算机工程》2009年第20期192-193,196,共3页Computer Engineering

摘　　要：提出一种基于边缘信息及光照方向的阴影检测算法。该算法通过将HSV和RGB彩色空间的阴影特征相结合进行初步检测,从初步检测得到的阴影中估计光照方向,运用基于边缘信息阴影检测算法检测在光照方向角阈值范围内的阴影区域,实现对运动目标阴影的准确检测,为运动目标后续处理排除阴影干扰。实验结果表明,该算法能较好地抑制噪声,阴影检测效果比传统算法好。This paper proposes a shadow detection algorithm based on edge information and illumination direction.It detects shadow which unifies through the shadow characteristics of HSV and RGB color space,estimates the illumination direction through the shadow which formerly examined,and uses the shadow detection algorithm based on edge information to detect the shadow in the threshold range of illumination direction.It can effectively detect the shadow of a moving object and remove the shadow disturbance for the following processing. Experimental results show that the algorithm is robust to noise and more efficient than traditional algorithms.

关 键 词：阴影检测 目标检测 光照方向 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]