Interlaced Video and Deinterlacing

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Interlaced video is a technique for doubling the perceived frame rate of a video display without consuming extra bandwidth, especially with older display technology. With an interlaced video, a video frame is rendered twice, one after another, first for the odd-numbered lines and then for the even-numbered lines.

Flat-Earthers discovered objects appearing transparent in some footage from the ISS and use the fact as “evidence” the footage was faked. In reality, some of these artifacts are due to interlacing and the process of deinterlacing interlaced videos.

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