在金融机关和商店等处安装了防范用的监视摄像机,可以录下犯罪现场,是认定罪犯、确认犯罪行为的有力侦察资料。但由于录下的犯人睑非常小、画面不明显等理由,不能成为侦察资料的案件也很多。因此有必要分析目前银行和商店防范电视系统的现状及存在的问题,并提出改进意见,特别是侦察员在处理银行、商店等处的录像带时应注意点以及用计算机处理使画面鲜明化的问题。 Security cameras are installed in financial institutions and shops to record crime scenes and provide powerful reconnaissance information to identify criminals and identify crimes. However, due to recorded prisoners eyelid is very small, the screen is not obvious reasons, can not be reconnaissance information, there are many cases. Therefore, it is necessary to analyze the current status quo and existing problems of preventing TV systems in banks and shops and put forward suggestions for improvement. In particular, the scout should pay attention to the videotapes at banks and shops, etc., and computerized processing should make the picture vivid .