examples in the vision toolbox fail to load .mat files

Trying to run computer vision toolbox matlab 9.11.0.1769968 (R2021b). Get the following error

>> handData = load('hand3d.mat');

Warning: Variable 'fixed' originally saved as a pointCloud cannot be instantiated

as an object and will be read in as a uint32.

Warning: Variable 'moving' originally saved as a pointCloud cannot be instantiated

as an object and will be read in as a uint32.

Answer 1

[Steven Lord]

The pointCloud function is part of Computer Vision Toolbox and was introduced in release R2015a. Do you have this toolbox installed and licensed? You can check this by running the ver command and looking for a line starting with "Computer Vision Toolbox" in the displayed output.

If that line does not exist you will need to install Computer Vision Toolbox to use this function.

[Brian Hodges]

Yes, here is a the output from ver minus the license number

MATLAB Version: 9.11.0.1769968 (R2021b)

MATLAB License Number: XXXXXXXXXXXXXXXX

Operating System: Microsoft Windows 11 Enterprise Version 10.0 (Build 22621)

Java Version: Java 1.8.0_202-b08 with Oracle Corporation Java HotSpot(TM) 64-Bit Server VM mixed mode

-----------------------------------------------------------------------------------------------------

MATLAB Version 9.11 (R2021b)

Computer Vision Toolbox Version 10.1 (R2021b)

Image Processing Toolbox Version 11.4 (R2021b)

Signal Processing Toolbox Version 8.7

[Brian Hodges]

There was a problem adding the toolbox, so a new install was done. There an option to install "keeping the matlab environment", but I had to physically add the toolbox directories to the matlab path. ??

[Steven Lord]

It sounds like your path may have been corrupted at some point. Try to restore the default path using restoredefaultpath.

[Brian Hodges]

restoredefaultpath resolved the issue. Thanks for the help