Impala Documentation

virtual void Impala::Core::VideoSet::LbpEval::HandleNewFrame	(	VideoSet *	vs,
		int	fileId,
		Stream::RgbDataSrc *	src
	)			`[inline, virtual]`

Arrived at a new frame in a "normal" walk.

Reimplemented from Impala::Core::VideoSet::Listener.

Definition at line 244 of file LbpEval.h.

References Impala::Util::Append(), Impala::atoi(), Impala::Core::Stream::RgbDataSrc::DataPtr(), Impala::Core::Stream::RgbDataSrc::FrameHeight(), Impala::Core::Stream::RgbDataSrc::FrameNr(), Impala::Core::Stream::RgbDataSrc::FrameWidth(), Impala::Core::Feature::FeatureTableSet::GetFeatureDefinition(), GetRectangles(), Impala::Core::Feature::FeatureTableSet::GetTable(), ILOG_DEBUG, ILOG_ERROR, Impala::Core::VideoSet::Lbp(), Impala::Core::Histogram::MakeCooccurenceMatrix(), Impala::Core::Histogram::MakeHistogram1d(), Impala::Core::Feature::MarkovStationaryFeature(), mDoMSF, mMaps, mTableSet, Impala::Core::Histogram::Histogram1dTem< ElemT >::Normalize(), Impala::Core::Array::RGB2Gray(), Impala::Core::Vector::VectorTem< ElemT >::Size(), and Impala::Core::Feature::FeatureTableSet::Size().

00245     {
00246         Array::Array2dVec3UInt8* im = Array::ArrayCreate<Array::Array2dVec3UInt8>
00247             (src->FrameWidth(), src->FrameHeight(), 0, 0, src->DataPtr(), true);
00248         Array::Array2dScalarReal64* greyim = 0;
00249         Array::RGB2Gray(greyim, im);
00250         delete im;
00251         Quid quid = vs->GetQuidFrame(fileId, src->FrameNr());
00252         for(int i=0 ; i<mTableSet->Size() ; ++i)
00253         {
00254             Feature::FeatureDefinition fd = mTableSet->GetFeatureDefinition(i);
00255             //ILOG_DEBUG("processing " << fd.AsString());
00256             int samples = atoi(fd.GetParameterValue("samples"));
00257             int radius = atoi(fd.GetParameterValue("radius"));
00258             Array::Array2dScalarUInt8* lbpIm = 0;
00259             Lbp(lbpIm, greyim, mMaps[i], samples, radius);
00260 
00261             //here we could loop over the image parts (patatsnijden)
00262             Vector::VectorTem<Real64> vector;
00263             Vector::VectorTem<Real64>& accu = vector;
00264             std::vector<Geometry::Rectangle> rects;
00265             ILOG_DEBUG("greyim w:"<<lbpIm->CW()<<" h:"<<lbpIm->CH());
00266             GetRectangles(rects, lbpIm->CW(), lbpIm->CH(), radius);
00267             for(int r=0 ; r<6 ; ++r)
00268             {
00269                 ILOG_DEBUG("rect "<<r<<" -> "<<rects[r]);
00270             }
00271             for(int r=0 ; r<6 ; ++r)
00272             {
00273                 //either simple histogram, or cooccurence matrix
00274                 if(mDoMSF)
00275                 {
00276                     Histogram::Histogram2dTem<double> hist(-1.5, samples+1.5, samples+2, -1.5, samples+1.5, samples+2);
00277                     Histogram::MakeCooccurenceMatrix(&hist, lbpIm, rects[i]);
00278                     const Vector::VectorTem<Real64>& v =
00279                         Feature::MarkovStationaryFeature(&hist);
00280                     accu = Append(accu, v);
00281                 }
00282                 else
00283                 {
00284                     double dummy=0;
00285                     Histogram::Histogram1dTem<double> hist(-0.5, samples+1.5, samples+2, &dummy);
00286                     MakeHistogram1d(&hist, lbpIm, rects[i]);
00287                     hist.Normalize();
00288                     if(dummy != 0)
00289                         ILOG_ERROR("lbp with map should not create outliers in histogram");
00290                     accu = Append(accu, hist);
00291                 }
00292             }
00293             ILOG_DEBUG("feature length: " << accu.Size());
00294             Feature::FeatureTable* t = mTableSet->GetTable(i);
00295             t->Add(quid, accu);
00296             delete lbpIm;
00297         }
00298         delete greyim;
00299     }

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