基于FPGA时序同步检测的电视信号自动检测算法

A Television Signal Automatically Detection Algorithm Based on FPGA Synchronization Sequence Detection

采用FPGA对电视同步信号时序进行监测,采用数字图像分析技术对电视图像内容进行监测,可以发现同步时序异常变化并进行自动信号切换;同时应用FPGA设计实现对电视同步信号的实时检测,并给出检测程序;使用图像分割方法建立电视信号初始模板,研究了建立精确图像模板的动态更新方法。

In the design FPGA is used to test the synchronization of TV signals, and digital image analysis is used to check the content of TV image, the system can perform automatic signal switching and alarming as soon as abnormality in synchronization or TV signal is detected. In the thesis the FPGA design for real time TV signals＇ synchronization detection is introduced. Methods of performing TV signal＇ primary template by using image cutting, dynamic template updating, as well as the matching test between the template and the received TV signals are also presented in the thesis.