Matlab crashes when I am using Feature detector

[surendra1234sharma]

Hello,
I am using Matlab2018a, OpenCV-3.1 build opencv successfully using visual studio 2012 64bit.
I am executing following commands.

detector = cv.FeatureDetector('SURF')
till this it works fine
but when I execute the following command, Matlab terminates unexpectedly
points = detector.detect(rgb2gray(img));

It works fine if I use detector = cv.FeatureDetector('SIFT') but terminates when using "SURF", "ORB"