文章基本信息

标题：A Study on Object Tracking Signal Generation of Pan, Tilt, and Zoom Data
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作者：Jin-Tae Kim
期刊名称：International Journal of Software Engineering and Its Applications
印刷版ISSN：1738-9984
出版年度：2014
卷号：8
期号：3
页码：133-142
DOI：10.14257/ijseia.2014.8.3.13
出版社：SERSC
摘要：CCD cameras monitoring a moving object generally operate with a fixed view point or a defined pattern. As a result, a free-moving object can move out of the CCD camera's field of vision quickly, and automatic control is required to observe the object continuously. This paper proposes a signal generation algorithm for the automatic control of a CCD camera. Using the control signal, the monitoring camera can track a moving object and keep it near the image center for a longer time. The proposed method is validated in experiments that automatically move a mark located at a specified position to the image center. The proposed algorithm computes horizontal and vertical displacements between the detected object position and the image center and coverts them into angles. Finally, pan/tilt data are generated from the angles. To evaluate the proposed algorithm, we compare the generated data in the automatic control with measured data in manual control and carry out the object tracking using a simple object. The experimental results show that the difference between the generated and measured data is a negligible quantity, and the object, which is moving within ranges of ±52 o /±40 o of pan/tilt, is kept within about ±13 o /±10 o from the image center.
关键词：Automatic Control; Image Center; Object Tracking; Pan/Tilt/Zoom