Definition - What does Video Artifact mean?
A video artifact is a noticeable distortion in the quality of video, brought about due to lossy data compression. Lossy data compression is done in order to simplify the video such that it can be stored within a smaller disk space or transmitted more easily.
Techopedia explains Video Artifact
A video artifact occurs when the quality of the video is compromised in order to store the video within the desired disk space or transmit it on the desired bandwidth. As a result, the compressor is not able to reproduce the full quality of the original version, resulting in compromised quality, and artifacts are introduced. Large quantization errors lead to a break up in the picture quality of a video. To combat this, a deblocking filter is used. The output of the decoder is then made to pass through the deblocking filter for further processing.
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