The properties and importance of photomultiplier in measuring flow fieldrate are introduced and an experimental system is presented.
本文介绍光电倍增管在流场速度测量中的特点及重要性，给出了实验系统。
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Shots are classified into four types: long-view shot, middle-view shot, close-up shot and out of field shot, using fieldrate, shape and areas of player in the field.
They are based on digital processing technology and use various digital methods to process the interlaced, low-fieldrate video data, including the de-interlacing and fieldrate conversion.