Depth Image Segmentation Using Depth Threshold

Question

Hg 2016-2-28

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https://ww2.mathworks.cn/matlabcentral/answers/270467-depth-image-segmentation-using-depth-threshold

编辑： Yves Daoust 2016-2-29

Depth threshold can be used to extract a foreground (e.g a hand) when there's a gap between a foreground and it's background. In some cases where the foreground goes "deeper" than its background, or being "buried" in the background, how can the extraction/segmentation be done?

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Answer 1

Yves Daoust 2016-2-29

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编辑：Yves Daoust 2016-2-29

This isn't really possible using the depth information alone, especially if the hand touches the sheet. There is no difference between a finger and a fold. (Unless you deploy an elastic 3D model of a hand and fingers and fit it to the data.)

In this particular case, you can probably work by first segmenting the skin from the visible image.