3D Point Cloud to Raster Image
28 views (last 30 days)
Abdul Hannan Qureshi on 22 Apr 2022
Is there any guideline available to generate raster image from point cloud (.ply) model ?.
Following is my model:
Following code I have managed to compile:
ptCloud = pcread('M.ply');
c = pca(ptCloud.Location);
TPCA = ptCloud.Location*c(1:3,:);
I=find(TPCA(:,1)>minX & TPCA(:,1)< ...
minX+resolution & TPCA(:,2)>minY & ...
I am not getting any kind of outcome. Kindly advise.
Walter Roberson on 23 Apr 2022
I=find(TransformPCA(:,1)>minX & TransformPCA(:,1)< ...
minX+resolution_pix & TransformPCA(:,2)>minY & ...
I would point out to you that you could use a 2D histogram, and then your raster would be sign(the_histogram_values)
There are several ways to do a 2D histogram. One of the ways would be to discretize() the X and Y coordinates separately to get X and Y bin numbers, and then accumarray( [Y(:), X(:}], 1) . (The raw numbers would be a density map, by the way.)