本文论述视频信号处理中，将幅度悬殊的多目标视频信号转换成二值化信号的各种方法。

All kinds of methods for transforming multi-objects video signals with largely different amplitude into two values signals are described.

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本文介绍了具有视频信号处理能力的LED显示屏系统的技术现状与发展趋势，主要技术包括视频信号转换、信号传输、信号存储与输出等。

The paper describes the technology of video LED display system, which includes the transformation, transmission, store and output of the signal. In the end, the trend of the system is introduced.

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沿着一条直线的图象象素被转换成视频信号，然后由一个电子滤波器进行低通滤波。

The picture elements across a line are converted to the video signal and low-pass filtered with an electrical filter .

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