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open source pkg v1

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This commit is contained in:
Vijay Yadev
2020-08-04 19:12:31 -04:00
parent bef213dba9
commit c389fc2c47
3708 changed files with 1624220 additions and 1 deletions
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30
pkg/OpenFace/matlab_version/PDM_helpers/AlignShapesWithScale.m Normal file
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function [ A, T, error, alignedShape ] = AlignShapesWithScale( alignFrom, alignTo )
%ALIGNSHAPESWITHSCALE Summary of this function goes here
% Detailed explanation goes here
numPoints = size(alignFrom,1);
meanFrom = mean(alignFrom);
meanTo = mean(alignTo);
alignFromMeanNormed = bsxfun(@minus, alignFrom, meanFrom);
alignToMeanNormed = bsxfun(@minus, alignTo, meanTo);
% scale now
sFrom = sqrt(sum(alignFromMeanNormed(:).^2)/numPoints);
sTo = sqrt(sum(alignToMeanNormed(:).^2)/numPoints);
s = sTo / sFrom;
alignFromMeanNormed = alignFromMeanNormed/sFrom;
alignToMeanNormed = alignToMeanNormed/sTo;
[R, t] = AlignShapesKabsch(alignFromMeanNormed, alignToMeanNormed);
A = s * R;
aligned = (A * alignFrom')';
T = mean(alignTo - aligned);
alignedShape = bsxfun(@plus, aligned, T);
error = sqrt(mean(sum((alignedShape - alignTo).^2,2)));
end