| Summary: | 碩士 === 大同大學 === 資訊工程學系(所) === 96 === This thesis presents the technology of object tracking for network camera. The
network camera will track the moving object so as to keep it in the center of camera view.
This thesis includes two main topics. The first is to determine the center of the
moving object using image-processing technique. The second is the motor control of the
camera. The camera will sweep to the right position automatically so as to center the
moving object.
The main strategies of image processing are summarized as follows: i) converting
the RGB color representation to YUV representation to retrieve luminance of captured
image; ii) sub-sampling of image to reduce the computation complexity of image
processing; iii) Find out the moving part in the continuous images by computing their
differences and, then, using the so-called movement energy method to calculate central
position of the moving object; and iv) using morphological filtering to reduce
background noise..
This project was developed in an embedded system. Because such a system is
intrinsically in a lower capacity, reducing the amount of computation needed is important.
Furthermore, to get balance between operation speed and accuracy of tracking is another
important consideration of this research.
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