| 双路视频同步采集与实时处理技术 |
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| 引用本文： | 邹志,唐建博.双路视频同步采集与实时处理技术[J].光学与光电技术,2009,7(5):32-35. |
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| 作者姓名： | 邹志 唐建博 |
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| 作者单位： | 华中光电技术研究所-武汉光电国家实验室,湖北,武汉,430073 |
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| 摘 要： | 利用CCD的外同步工作特性，结合图像采集通道软件切换、多线程、事件驱动和图像压缩显示等技术，实现了双路视频的同步采集和实时显示与处理。在目标提取算法中，先采用带阻滤波隔离干扰，再采用自动阈值分割区分星点目标与背景，通过聚类分析剔除虚假目标干扰后，采用质心算法计算星点目标的质心坐标。经实验验证，该技术在单PC104的硬件基础上，既能稳定提取双路视频的星点目标，又成功满足了系统对双路视频同步采集、实时处理与显示的要求。
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| 关 键 词： | 实时处理 帧同步 聚类 自动阈值分割 |
Technology of Capturing Synchronization and Real-Time Processing in Twin Video |
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| ZOU Zhi,TANG Jian-bo.Technology of Capturing Synchronization and Real-Time Processing in Twin Video[J].optics&optoelectronic technology,2009,7(5):32-35. |
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| Authors: | ZOU Zhi TANG Jian-bo |
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| Institution: | ( tluazhong Institute of Eleetro Optics Wuhan National Laboratory for Optoelectronics, Wuhan 430073, China ) |
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| Abstract: | Through the external HD/VD trigger synchronization of CCD, and combining the capture channel soft switch as well as multithreading, event-driving, compressing display, the capturing synchronization, real-time processing and displaying of twin video are realized. In the algorithm of target pickup, firstly, the disturbance is closed off by hand block filter. Tben, the star aim is distinguished from the background by automation threshold segmentation. At last, the decoy is eliminated by clustering, and the center-of-moment is calculated. Experimental results show that this technology can steadily pick-up star aim from twin video and fulfill real-time capability based on single PC104. |
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| Keywords: | real time processing picture synchronization clustering auto threshold segmentation |
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