Questions tagged [pcl]

143 questions
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Rasterize pointcloud with PCL OctreePointCloudVoxelCentroid

I try to rasterize a X-0-Z pointcloud via PCL::OctreePointCloudVoxelCentroid in order to use some image processing algorithms on the pointcloud afterwards. But the output is not what I expect. I want the centroid for each box in an axis aligned…
Pj Toopmuch
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qt_visualizer tutorial pointcloud doesnt appear

I compiled PCL1.10.1 against VTK 8.2.0 and try to start using PCL in my QT Gui Project like pcl s qt_visualizer tutorial. https://pcl.readthedocs.io/projects/tutorials/en/latest/qt_visualizer.html#qt-visualizer The pointcloud doesnt appear. The…
Pj Toopmuch
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Display pcd file header

I have 2 sets pf pcd file, the data in them is similar in terms of number of points but still there is a huge difference between load time of the pcd file (8x more). Following lines show the same. suraj@suraj:~/PCL_Project/Data$ pcl_viewer…
surajj4837
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PCL: Filtering Point Cloud given 2 line equations

Given two line equations in the form y = mx + c all of the points that are not in between of the two lines must be filtered out. Currently I'm using a pass through filter, which approximately filters out the points. Instead, could this be done more…
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How to detect if a PCL file is in color or BW?

Is there a general toggle or a set of commands or a more complex analyze to be able to assert that a given PCL file is in color? (HP Print Command Language - PCL5) (or on the contrary in Black & White) I have samples of PCL5 clearly using color,…
Sandburg
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XYZRGB point cloud from ToF camera and RGB camera

Im trying to create a pointcloud from depth data from my ToF camera and overlaying my RGB image onto the pointcloud. To do this I have created a stereo calibration using OpenCV on the amplitude image and the RGB image. I have the correction maps…
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Is there a way to find and modify the color of a point in a .ply file using python?

i'm trying to modify the color of a set of points in a .ply file using python, can u know some method to do it? Thank you I have searched some examples on internet but i haven't found anything
Ahmed Amer
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Camera projection onto spatial map with Hololens 2

I am trying to project the recorded image (with some modification of the color) on to the spatial map generated from the 3D view of Hololens 2 device portal. I recorded the image with the corresponding CameraToWorld matrix and Projection Matrix for…
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