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lvl.2
United States
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FlyDK Posted at 2018-1-17 14:52
I find it difficult to understand what the words "artifacting" and "artifacts" really covers. Could one of you try to explain it to me please?
Artifacts are the result of the video file being compressed. See when the light hits the image sensor, it contains an incredible amount of data. Not all of the data is used for creating the actual video. In order for the light hitting the sensor to be recorded numerous times per second and then written to memory, the video must be compressed. So what that means is some of that data from the sensor is thrown away, or rather the image processor determines what information can be thrown away and what information can be sort of grouped together.
As an example, in areas of heavy foliage, where there is lots of the same deep colors and textures, the processor on the mavic pro will throw away some of the information. If you pause a frame and zoom in, small pixel groups may look like its blurry, or a few of the pixels look the same. Detail and color information is essentially lost or not accurate because the image processor has guessed what that information should be. And those are artifacts! The more aggressive the compression and lower bitrate, the more artifacts.
Cheers! |
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