MATLAB: How to detect crosswalk

Question

Hi,

How can I detect the crosswalk in a movie in MATLAB ?

I saw a function imfindcircles that you can find circles in the picture, but I didn't find similar function to find rectangle objects?

Thanks

Answer 1

Try hough() or houghlines() or look in the literature in section 15.3.3 of Vision Bib: http://iris.usc.edu/Vision-Notes/bibliography/contentsactive.html#Active%20Vision,%20Camera%20Calibration,%20Mobile%20Robots,%20Navigation,%20Road%20Following