field rate meaning in English

场率
场频率
场速率

The format transcoding includes the frame size conversion , frame rate or field rate conversion , and interlaced / progressive video conversion . in this chapter , the frame size trancoding with arbitrary rational number ratio of l / m is put forward
提出了变换比例为任意有理数l m时的空域任意尺寸转码，以及针对任意尺寸转码器的运动矢量重用算法。