June 2015
Intermediate to advanced
592 pages
17h 5m
English
Content preview from Digital Video Processing, Second Edition
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Appendix E. Model Fitting
Several motion-estimation, 3D-structure estimation, and image/motion-segmentation problems require fitting a model to available data samples. This appendix presents model-fitting solutions that are common to these problems. Linear least-squares or total least-squares methods are used when available data samples are free from outliers. Random-sample consensus (RANSAC) is an effective method to deal with data with outliers.
E.1 Least-Squares Fitting
In order to keep the presentation simple, let’s suppose that the available data consists of pairs of points (x1, y1), ..., (xN, yN) and we want to fit a line y = m x + b to these points such that sum of squared vertical distances between the given points and the line δi = ...
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