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Fixed an issue with weight assignment causing the resulting GMM weights to be unsorted in BackgroundSubtractorMOG2

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Firat Kalaycilar 2014-03-12 16:14:59 +02:00
parent 1bb0c5747c
commit a87607e3ef
1 changed files with 3 additions and 2 deletions
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5
modules/video/src/bgfg_gaussmix2.cpp
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@ -319,7 +319,7 @@ struct MOG2Invoker : ParallelLoopBody
for( int mode = 0; mode < nmodes; mode++, mean_m += nchannels ) for( int mode = 0; mode < nmodes; mode++, mean_m += nchannels )
{ {
float weight = alpha1*gmm[mode].weight + prune;//need only weight if fit is found float weight = alpha1*gmm[mode].weight + prune;//need only weight if fit is found
int swap_count = 0;
//// ////
//fit not found yet //fit not found yet
if( !fitsPDF ) if( !fitsPDF )
@ -384,6 +384,7 @@ struct MOG2Invoker : ParallelLoopBody
if( weight < gmm[i-1].weight ) if( weight < gmm[i-1].weight )
break; break;
swap_count++;
//swap one up //swap one up
std::swap(gmm[i], gmm[i-1]); std::swap(gmm[i], gmm[i-1]);
for( int c = 0; c < nchannels; c++ ) for( int c = 0; c < nchannels; c++ )
@ -401,7 +402,7 @@ struct MOG2Invoker : ParallelLoopBody
nmodes--; nmodes--;
} }
gmm[mode].weight = weight;//update weight by the calculated value gmm[mode-swap_count].weight = weight;//update weight by the calculated value
totalWeight += weight; totalWeight += weight;
} }
//go through all modes //go through all modes