3D Point Cloud to 2D depth image

Hi

I have a 3D point cloud.

Now I want to convert it to 2D depth image of say 240*320. Does anyone has anything to share?

It will be a good addition to Matlab.

Best Regards Wajahat

[yifang huang]

is this question solved?

[Guillermo]

Hi, You can use this function

http://ch.mathworks.com/matlabcentral/fileexchange/55031-pointcloud2image--x-y-z-numr-numc--

[Walter Roberson]

That contribution is what VahidB suggested 4 years ago.

Answer 1

[VahidB]

This may help! http://www.mathworks.com/matlabcentral/fileexchange/55031-pointcloud2image--x-y-z-numr-numc--

[henry henry]

how to get x , y and z from pointcloud?

[Walter Roberson]

 XYZ = YourPointCloud.Location;   %Location property
 X = XYZ(:,1); Y = XYZ(:,2); Z = XYZ(:,3);

[rajyalakshmi k]

hi sir i am not able to store my point cloud image in .xyz or .ply format.so i need small attention on my question "how to give point cloud location (XYZ = YourPointCloud.Location)";"

[Walter Roberson]

rajyalakshmi k, What format is your point cloud in?

[rajyalakshmi k]

Thank u sir for your fast response,

https://in.mathworks.com/help/vision/examples/structure-from-motion-from-two-views.html

after executing this the final output is point cloud only but while saving that image i am not able to save in .xyz or .ply format (bcoz point cloud should be in .xyz or .ply only) anyway it is saving in .fig format only. but i need to extract x,y,z coornidates for any pointcloud image for further processing like getting surface model for that point cloud data. so please give any solution for my question.

[Walter Roberson]

https://www.mathworks.com/help/vision/ref/pcwrite.html writes to ply format.

When you get down to the part of the example that has

% Create the point cloud
ptCloud = pointCloud(points3D, 'Color', color);

then ptCloud.Location will exist.

[rajyalakshmi k]

Thank you sir

Answer 2

[Meghana Dinesh]

Use disparity.