Multi-resolution stereo analysis - Experiment results

by Caghan Demirci

The assignment can be found here. The experiment results are below.

Experiment 1

Region-based matching
Parameters
Score SAD
Template size 30
Match window width 9
Match window height 5
Results
Calculated disparity map
Difference to true disparity map
Anaglyph after warping

Experiment 2

Feature-based matching
Parameters
Score SAD
Template size 30
Match window width 9
Match window height 5
Results
Calculated disparity map
Difference to true disparity map
Anaglyph after warping

Experiment 3

Multi-resolution matching (4 pyramid levels)
Parameters for level 4
Method Feature-based matching
Score SAD
Template size 4
Match window width 3
Match window height 3
Calculated disparity map
Parameters for level 3
Method Region-based matching
Score SAD
Template size 10
Match window width 5
Match window height 5
Calculated disparity map
Parameters for level 2
Method Region-based matching
Score SAD
Template size 15
Match window width 7
Match window height 5
Calculated disparity map
Parameters for level 1
Method Region-based matching
Score SAD
Template size 20
Match window width 9
Match window height 5
Results
Calculated disparity map
Difference to true disparity map
Anaglyph after warping

The multi-resolution matching method gives the best results.

In particular, multi-resolution matching is more robust against bad parameters, since it builds on disparity values from the previous level, which are usually less noisy.