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Fixed BackgroundSubstractorMOG2 in opencv_video.

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The number of gaussians involved in a mixture is supposed
to be dynamically adjusted. After being increased, the number
of gaussians can't be reduced anymore.

It seems to be a regression as the legacy code
located in modules/legacy/src/bgfg_gaussmix.cpp allows to reduce
such number of gaussians.
This commit is contained in:
Gilles Rochefort 2016-05-29 17:25:02 +02:00
parent 19e79d6727
commit 78de75397e
1 changed files with 1 additions and 3 deletions
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4
modules/video/src/bgfg_gaussmix2.cpp
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@ -309,7 +309,7 @@ struct MOG2Invoker : ParallelLoopBody
//internal: //internal:
bool fitsPDF = false;//if it remains zero a new GMM mode will be added bool fitsPDF = false;//if it remains zero a new GMM mode will be added
int nmodes = modesUsed[x], nNewModes = nmodes;//current number of modes in GMM int nmodes = modesUsed[x];//current number of modes in GMM
float totalWeight = 0.f; float totalWeight = 0.f;
float* mean_m = mean; float* mean_m = mean;
@ -415,8 +415,6 @@ struct MOG2Invoker : ParallelLoopBody
gmm[mode].weight *= totalWeight; gmm[mode].weight *= totalWeight;
} }
nmodes = nNewModes;
//make new mode if needed and exit //make new mode if needed and exit
if( !fitsPDF ) if( !fitsPDF )
{ {