What is generally the minimum number of scan lines for high-definition video?

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Multiple Choice

What is generally the minimum number of scan lines for high-definition video?

High-definition video is defined by having more vertical detail than standard-definition, and the minimum level commonly recognized for HD is 720 visible scan lines. This corresponds to the 720p format (1280×720) with progressive scanning, which provides a noticeable step up in vertical detail over SD. The 480-line option is standard-definition, and the 1080-line option represents higher, full HD detail rather than the minimum. The 540-line option isn’t a standard HD format. So, 720 lines is the threshold that marks the minimum for high-definition video.

High-definition video is defined by having more vertical detail than standard-definition, and the minimum level commonly recognized for HD is 720 visible scan lines. This corresponds to the 720p format (1280×720) with progressive scanning, which provides a noticeable step up in vertical detail over SD. The 480-line option is standard-definition, and the 1080-line option represents higher, full HD detail rather than the minimum. The 540-line option isn’t a standard HD format. So, 720 lines is the threshold that marks the minimum for high-definition video.

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