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Get RGB image from point cloud msg

Hello everyone. I have a little doubt about my current job. As far as I know, in addition to the XYZ location information of each point, RGB information is also stored in the point cloud. How can I extract this information from the point cloud msg and convert it into RGB images? " I have tried to receive point clouds and RGB images from two different topics. But there is a mismatch between the two. The acquisition time of the point cloud is a little later than that of the left view.

Asked by kankanzheli on 2022-07-03 09:44:59 UTC

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If you want to synchronize these topics by time, you need to use something like message_filters package.

These libraries are popular with working with point clouds:

Especially this one and this one are about converting point clouds to images.

Asked by ljaniec on 2022-07-04 02:39:33 UTC

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