光电跟踪仪自主搜索用的图像处理器

Image processor for autonomous searching of an opto-electronic tracker

为动态显示扇形搜索空域的全景图像,必须设计专用的图像处理器,以解决快速搜索与人眼观察之间的矛盾。某舰载小型光电跟踪仪,搜索区域为沿水平和垂直方向分别扫过20倍瞬时视场的空域,搜索视场从1.7°×1.3°扩大为34°×26°。图像处理器以TMS32010DSP为核心,外加直方图、分类表存储器等辅助电路,完成实时图像采集、存储、拼接、显示、更新等功能,适应42.5°/s的扫描速率,获得比光学系统本身大20倍的搜索视场。

A special image processor has been designed to display the image of all searched space, resolving the discrepancy of quick searching and visual observing. For a warshipbound mini optoelectronic tracker, the dimension of searched area is 20 times of the instantaneous FOV vertically and horizontally. Thus, the searching FOV can be magnified from 1.7°×1.3° to 34°×26°. The image processor based on DSP TMS32010, sets up an additional memory of histogram and classification , realizing image sampling, memory, mosaic, display and alternating, suiting for the searching velocity of 42.5°/s, and obtain a search field of view 20 times larger than that of the optical system itself. 