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 .
该电路在视频放大器、有源滤波器、高速数据转换器等电子系统中有着广泛的应用前景。
This circuit finds wide applications in video amplifiers, active filters, high speed data conversions and other electronic systems.
在视频图像获取过程中，由于噪声对图像序列的降质，需要设计实时噪声滤波器。
For the degradation of image sequence due to noise, the temporal noise filter is designed during video image acquisition process.
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