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RGBDSLAM data size

asked 2013-05-16 02:32:51 -0600

INSA gravatar image

updated 2014-01-28 17:16:33 -0600

ngrennan gravatar image

Hi,

When i give to the RGBDSLAM package a pointcloud and a rectified image (from a stereo camera) of different sizes, i got this error : "PointCloud, depth and visual image differ in size! Ignoring Data"

I need to have different sizes because i am using a voxelGrid filter on my pointcloud. How can i make the RGBDSLAM package accept a pointcloud and a rectified colored image of different sizes ?

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This is the downfall of the package. Instead of removing points, you could just set them to zero which won't remove the points itself. The voxel grid filter should give you inlier indexes which is the points that correspond to the down-sampled point cloud.

astaranowicz gravatar image astaranowicz  ( 2013-05-20 10:17:45 -0600 )edit

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answered 2013-05-16 08:55:21 -0600

This is not possible in RGBDSLAM. It needs 3D information for the features it finds in the visual image and therefore requires either a depth image or a point cloud with a raster layout of the size of the visual image. Maybe you could compute a depth image from your cloud before voxelizing it?

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Asked: 2013-05-16 02:32:51 -0600

Seen: 189 times

Last updated: May 17 '13