目标自动跟踪摄像机的技术研究

提出了目标自动跟踪摄像机的总体设计方案。根据CMOS图像传感器的工作原理及典型外围电路，设计了基于CMOS图像传感器的图像采集电路。为了提高图像数据的处理速度，采用了双存储器的设计方案。选取了一个带有六个参数的仿射变换模型来表示整个背景图像运动，利用待匹配块之间仿射模型的变换关系．求解出了背景运动模型参数，实现了相邻两帧背景图像之间的匹配。通过时间差分法实现目标检测，采用强度中心法确定目标位置。

Research on Object Auto-Tracking Camera

In this paper, a general scheme of object auto-tracking camera is presented and an image acquisition circuit based on CMOS image sensor is designed according to principles of work and typical peripheral circuit of CMOS image sensor. A double memory project is adopted in order to improve processing speed. An affine-transformation model with six parameters is used to denote the background image motion and the parameters of background model motion are obtained and the match between two frames of background image is achieved by use of affine transformation model relation between two blocks to be matched. At last, the object detection is achieved using time difference method and the object position is determined using intensity center method.