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Change intrinsic camera matrix initialization

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In the function cvInitIntrinsicParams2D the principal point for
normalized image coordinates is set to 0/0. This updates the function
to initialize the principal point at 0.5/0.5.
This commit is contained in:
Kevin 2013-10-19 01:30:03 -05:00
parent 578e984739
commit 8f995fac88
1 changed files with 2 additions and 2 deletions
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4
modules/calib3d/src/calibration.cpp
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@ -1391,8 +1391,8 @@ CV_IMPL void cvInitIntrinsicParams2D( const CvMat* objectPoints,
matA = cvCreateMat( 2*nimages, 2, CV_64F );
_b = cvCreateMat( 2*nimages, 1, CV_64F );
a[2] = (imageSize.width - 1)*0.5;
a[5] = (imageSize.height - 1)*0.5;
a[2] = (!imageSize.width) ? 0.5 : (imageSize.width - 1)*0.5;
a[5] = (!imageSize.height) ? 0.5 : (imageSize.height - 1)*0.5;
_allH = cvCreateMat( nimages, 9, CV_64F );
// extract vanishing points in order to obtain initial value for the focal length