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

Normalized cross-correlation matching

Warp the Images



Image Rectification







Blend the images into a mosaic

Laplacian pyramid is used to do the image blending.

Naive addition

Naive blending

Two-level pyramid

Five-level pyramid







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