Detecting rectangle using Hough Transform in real road images

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I wanna detect road sign based on shape detection
so what I need to do first is detecting rectangle.
I extracted line segments from original image using Hough Transform, and I attached example.
As u can see, every single line(different color) contains 4 values, which means 2 points.
My problem is the lines are incomplete to be rectangle, cuz it's not connected.
Anyone has ideas to solve it???
Thx in advance!

Answers (1)

Sudhanshu Bhatt
Sudhanshu Bhatt on 19 Jul 2016
Hi Jinwoo,
The below documentation link on Hough Transform in MATLAB could be useful: Hough Transform
Hope this helps!
Sudhanshu Bhatt

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