How to extract the elements of Point Cloud in matlab?

Hi there!

I hope everyone's doing great.

I'm here to leave a message and i belive that somone help me.

I'm a student andd the teacher gave me a project which is "Data Hiding Using 3D image as cover".

I choosed the 3D image is Point Cloud.

So, the question is that how to extract/access the elements of point cloud in matlab?

Answer 1

[Pooja Kumari]

Hello Naveed,

I understand you wanted to extract/access the elements of pointcloud in MATLAB.

To extract or access elements of a point cloud in MATLAB:

• Location Data: Access XYZ coordinates.

locations = ptCloud.Location;

• Color Data: Access RGB color values if available.

colors = ptCloud.Color;

• Accessing Normal Vectors: Normals, if available, are stored in the .Normal property.
• Loading a Point Cloud and Reading point cloud using "pcread" function.

You cab refer to the below documentation for more information on Pcread:

https://www.mathworks.com/help/vision/ref/pcread.html

You can refer to the below documentation for more information on Point cloud:

https://www.mathworks.com/help/vision/ref/pointcloud.html