Selecting control points for inverse perspective mapping (using fitgeotrans)
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Hello everyone,
I'm starting out with image processing and I have an image from camera and need to change it to bird's eye view using fitgeotrans function. Given that I only have one image, how do I find out the moving and fixed points? I was also unable to understand the concept of these control points based on the matlab documentation using the rotated checkerboard image. I hope someone can help me to understand generally understand the concept or offer me help with my specific problem, which is determining control points for bird's eye view transformation. An example of the canera image is attached below.
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Matt J
2021 年 12 月 25 日
Given that I only have one image, how do I find out the moving and fixed points?
So, notice that you no longer have only 1 image. You have the photograph and you have the conceptual drawing of the bird's eye view that you provided in a later comment. You just need to pick corresponding points from both, perhaps the 4 corners of the road or the road markings.
In any case, a perspective mapping will not work since straightness of lines is not preserved (the lane markings are curved in your first image but not the second). Perhaps the polynomial transformType could be attempted.
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