垂直掃描的用法和樣例:
例句
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利用多次垂直掃描來(lái)重顯一幅完整圖象的掃描技術(shù)。電視中使用2:1的交錯率,即每幀分兩場(chǎng),垂直掃描兩次,一場(chǎng)掃描奇數行,另一場(chǎng)掃描偶數行。
In scanning, the technique of using more than one vertical scan to reproduce a complete image. In television, 2:1 interlace is used, giving two vertical scans(fields) per frame; one field scans odd lines, and one field scans the even lines of the frame.