how can I save/load vision.For​egroundDet​ector object?

This was already asked here http://www.mathworks.com/matlabcentral/answers/158594-foreground-detector-how-do-i-save-load-an-existing-background-model, but the solution doesn't work for me on R2014a or R2014b. Here is what I did:

clear all

% init model
detector = vision.ForegroundDetector();

% train model
image = imread ('frame0.png');
step(detector, image);
image = imread ('frame1.png');
step(detector, image);

% save the trained model
feature('SystemObjectsFullSaveLoad',1);
save('detector.mat', 'detector');

% clear and load the trained model
clear all
load('detector.mat');

% try to use
image = imread ('frame0.png');
mask = step(detector, image);  % this crashes matlab

At the last line, Matlab crashes with a segmentation fault. Is it a bug or is there some other function to call prior to saving?

[Birju Patel]

Hi,

I tried on both R2014a and R2014b and I couldn't reproduce the segmentation fault.

Do you have the stack trace from the seg fault? That might help determine where the problem is coming from.

[Birju Patel]

Also, can you post the images you used (frame0,frame1)? They might be required to reproduce the issue.

Answer 1

[Image Analyst]

Any serious problem like a segmentation fault where the entire MATLAB development shuts down unexpectedly should be reported to the Mathworks.