search

alexsax / 2D-3D-Semantics

The data skeleton from Joint 2D-3D-Semantic Data for Indoor Scene Understanding
http://3dsemantics.stanford.edu
Apache License 2.0
464 stars 67 forks source link

How to correlate the pixel globalXYZ with the coordinates of pointclouds #18

Closed Liusifei closed 5 years ago

Liusifei commented 5 years ago

Hi,

Thank you for releasing the amazing dataset. I wonder what is the correct way to correlate the pixels in the RGB image, and the points in the point-cloud? e.g., to generate an index map which has the same size of the RGB image. Or, can I directly correlate the gloabalXYZ with the points' coordinates?

Thanks

ir0 commented 5 years ago

Hi,

The globalXYZ images provide a correspondence between 3d points and RGB pixels, however these 3d points are unfortunately not the same as in the given point clouds. However, you can use the globalXYZ points to find the nearest point in the given point cloud, if you are interested in a correspondence between RGB pixels and the given 3D point cloud.