How to find exact indoor wall corner using corner detection ?

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Hello, I'm trying to find the exact corner on the indoor wall but I'm unable to find because of false corners on the wall.please help me to find the perfect corner on the wall, which works for different wall images. Thanks in advance :).

Answers (1)

Jayaram Theegala
Jayaram Theegala on 5 Apr 2017
As you may already know, there are some functions in Computer Vision System Toolbox, for instance "detectFASTFeatures" which detect corners in a given image. To know more about these functions, click on the following URL:
But, as you mentioned these functions will detect all corners(not just the wall corner), hence after finding the corners you can check for some properties that are unique for a wall corner. Typically, the gradient in the region around a wall corner will be lower compared to other corners, may be you can write a custom function that can check for these unique properties and filter out only the wall corners. I hope this helps!
  2 Comments
Varun Kumar Siddaraju
Varun Kumar Siddaraju on 9 Apr 2017
Thank you Sir, I tried your suggested solution but I'm not getting which gradient to consider out of A,B,C and how to find corner point from the gradient details.
Could you please help me out to find solution for my problem. I have stuck in this problem from past 6 months. Thanks in advance :)
Image Analyst
Image Analyst on 9 Apr 2017
Maybe you should consider hiring an expert to finish the project. Do you have a deadline for getting it done, and a budget for completing it?

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