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Fixed divide by zero problem in cvStereoRectify (thanks to Philip Van Valkenberg) #2099

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This commit is contained in:
Andrey Kamaev 2012-06-27 15:15:32 +00:00
parent f09ae32796
commit 6c3137a8b5
1 changed files with 2 additions and 1 deletions
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modules/calib3d/src/calibration.cpp
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@ -2366,6 +2366,7 @@ void cvStereoRectify( const CvMat* _cameraMatrix1, const CvMat* _cameraMatrix2,
// calculate global Z rotation // calculate global Z rotation
cvCrossProduct(&t,&uu,&ww); cvCrossProduct(&t,&uu,&ww);
double nw = cvNorm(&ww, 0, CV_L2); double nw = cvNorm(&ww, 0, CV_L2);
if (nw > 0.0)
cvConvertScale(&ww, &ww, acos(fabs(c)/nt)/nw); cvConvertScale(&ww, &ww, acos(fabs(c)/nt)/nw);
cvRodrigues2(&ww, &wR); cvRodrigues2(&ww, &wR);