Difference between revisions of "Validation:Algorithms"

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Revision as of 04:13, 6 November 2012

External Validation

Correctly implementing algorithms and producing the expected performance is difficult. Academic papers more of then than not leave out important implementation details which are needed to reproduce their results. Just like with the halting problem in CS, its nearly impossible to formally prove that an algorithm is correctly implemented.

BoofCV contains over a thousand internal tests to help ensure correctness of its algorithms, but testing against external sources provides a hard number to compare against. This page contains a list of important algorithms inside of BoofCV and if they have been validated against external libraries or not. Just because some code has not been validated does not mean it is incorrect.

Status Meaning
Validated As good or better than original code or test data
Needs Work Producing results which are not as good as expected
NA Significantly different from original. See comments in code
Blank means that it has not been externally validated

Region Descriptors

Algorithm Status Comments
SURF Validated Original authors reference binary and others. http://boofcv.org/index.php?title=Performance:SURF
KLT
BRIEF
Oriented Gaussian NA Not validated and known to not replicate the original paper

Feature Detectors

Algorithm Status Comments
Fast Hessian Validated Original authors reference binary and others. http://boofcv.org/index.php?title=Performance:SURF
FAST Validated Original author's source code. Validation Code
Harris Corner
KLT Corner
Hough Line

3D Vision

Algorithm Status Comments
Zhang99 Validated More accurate than parameters found in paper. Given same points it produces same results as OpenCV. More accurate calibration point detector then OpenCV.
EPnP Pending verification against author's code
8+ pt Fundamental
8+ pt Essential
7 pt Fundamental
7 pt Essential
5 pt Essential Nister Pending validation against author's Matlab code
Linear H
Linear Trifocal 7 Validated Compared to matlab code found online that was based off the same source.

Image Processing

Algorithm Status Comments
Convolution

Interpolation

Algorithm Status Comments
Nearest Neighbour
Bilinear

Image Transformation

Algorithm Status Comments
Wavelet
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