YUV411、YUV420格式多见于DV数据中，前者用于NTSC制，后者用于PAL制。YUV411为每个像素都提取Y分量，而UV分量在水平方向上每4个像素采样一次。YUV420并非V分量采样为0，而是跟YUV411相比，在水平方向上提高一倍色差采样频率，在垂直方向上以U/V间隔的方式减小一半色差采样-YUV411, YUV420 data format common in DV, the former for the NTSC system, which is used for PAL system. YUV411 to extract the Y component of each pixel, and the UV component in the horizontal direction is sampled once every four pixels. YUV420 not 0 V component is sampled, but compared with the YUV411, in the horizontal direction to double the sampling frequency of color difference, in the vertical direction mode U/V component is reduced to half the sampling interval