CS 194-26 Project 5A: IMAGE WARPING and MOSAICING (first part of a larger project)
2020 Nov 16, cs194-26 (Kecheng Chen)
Shoot the Pictures
Target at Berkeley downtown
Recover Homographies
To calculate homography matrix, the below formulation is followed. The rightest column of V which corresponds to the smallest signular value is the solution.
Control points selection
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Normalized cross-correlation matching
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Warp the Images
Image Rectification
Blend the images into a mosaic
Laplacian pyramid is used to do the image blending.
Naive addition
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Naive blending
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Two-level pyramid
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Five-level pyramid
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Tell us what you've learned
I learned that even without depth information, 2D scenary construction can also be done.
Reference:
https://cseweb.ucsd.edu/classes/wi07/cse252a/homography_estimation/homography_estimation.pdf