A fast tracking algorithm of human head

• Main Authors: Chia-Hua Hsieh, 謝家華
• Other Authors: Brian K. Lien
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/22278446028568187572

碩士 === 輔仁大學 === 資訊工程學系 === 94 === ABSTRACT This paper purposed a fast head tracking approach using ellipse matching method. Our system contains three sub-systems. 1. Image preprocessing 2. Object extracting 3. Ellipse matching. The purpose of image preprocessing sub-system is to remove noises. The Object extracting sub-system extracts the possible object using frame difference techniques and locates the preliminary positioning of the object to reduce the search space of ellipse matching. In the ellipse matching we used sobel operators for edge detection of source image, after the edge detection procedure we locate the head outline using an ellipse matching to confirm if the object of interest is indeed the human head. We purpose a moving object marker algorithm for ellipse matching to reduce the time required of head tracking.