720p,一种视频显示格式。字母p意为逐行扫描(progressive scan),数字720则表示垂直方向有720条扫描线。[1]
通常720p的画面分辨率为1280×720,一般亦可称为高清(HD)。但有些情况下,如iPod Touch 4,其720P摄录并不是指1280×720(16:9),而是960×720(4:3),故没有注明是HD的720P摄录并不是都指1280×720(16:9)。
制式
制式 | 总扫描线 | 图像区域扫描线 | 水平总象素 | 图像区域水平象素 | 采样频率 |
1080p / 60Hz | 1125 | 1080 | 2200 | 1920 | 148.5MHz |
1080p / 50Hz | 1125 | 1080 | 2640 | 1920 | 148.5MHz |
720p / 60Hz | 750 | 720 | 1650 | 1280 | 74.25MHz |
720p / 50Hz | 750 | 720 | 1980 | 1280 | 74.25MHz |
解释
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