| virtual void Impala::Core::Trec::ThreadVisualSimilarity::SetOrigin | ( | int | shot | ) | [inline, virtual] |
Reimplemented from Impala::Core::Trec::Thread.
Definition at line 86 of file ThreadVisualSimilarity.h.
References Impala::Core::Table::TableTem< Col1T, Col2T, Col3T, Col4T, Col5T, Col6T, Col7T, Col8T, Col9T >::Add(), Impala::Core::Table::SimilarityTableSet::ComputeRanksTopN(), Impala::Core::Feature::FeatureTable::FindFeature(), Impala::Core::Table::SimilarityTableSet::FindQuid(), Impala::Core::Table::TableTem< Col1T, Col2T, Col3T, Col4T, Col5T, Col6T, Col7T, Col8T, Col9T >::Get1(), Impala::Core::Table::TableTem< Col1T, Col2T, Col3T, Col4T, Col5T, Col6T, Col7T, Col8T, Col9T >::GetColumn1(), Impala::Core::Table::TableTem< Col1T, Col2T, Col3T, Col4T, Col5T, Col6T, Col7T, Col8T, Col9T >::GetColumn2(), Impala::Core::VideoSet::Keyframes::GetFrameId(), Impala::Core::VideoSet::Keyframes::GetQuidFrame(), Impala::Core::Table::SimilarityTableSet::GetRankTable(), Impala::Core::VideoSet::Keyframes::GetShotId(), Impala::Core::Table::SimilarityTableSet::GetSimTable(), ILOG_DEBUG, mFeatureTable, Impala::Min(), mKeyframes, mOrigin, mShotsCache, mSimSet, mTopN, Impala::Core::Table::Table::SetEmpty(), Impala::Core::Table::Table::SetSize(), Shot2Key(), Impala::Core::Vector::Similarity(), and Impala::Core::Table::Table::Size().
00087 { 00088 // ORK: temporarily disabled to find bugs. 00089 // && mSimSet->GetRankTable(0)->Size() >= mTopN) // SK: only skip recalc if sufficient results are available 00090 00091 if (shot == mOrigin) { 00092 ILOG_DEBUG("SetOrigin: " << shot << " length: " << mTopN << " NO RECALC"); 00093 return; 00094 } 00095 00096 int key = Shot2Key(shot); 00097 Quid quid = mKeyframes->GetQuidFrame(key); 00098 ILOG_DEBUG("SetOrigin: " << shot << " key=" << key << " quid=" << 00099 quid << " length: " << mTopN); 00100 //ILOG_STARTACTION("computing visual similarity", ILOG_LEVEL_DEBUG); 00101 Table::SimilarityTableSet::SimTableType* sTable = 00102 mSimSet->GetSimTable(0); 00103 Real64* sim = sTable->GetColumn1()->GetData(); 00104 Vector::Similarity(sim, mFeatureTable->FindFeature(quid), 00105 mFeatureTable->GetColumn2(), 0, 1, 00106 Vector::Norm1Dist<Real64>); 00107 sTable->SetSize(mFeatureTable->Size()); 00108 int nr = Min(mFeatureTable->Size(), mTopN); 00109 mSimSet->ComputeRanksTopN(nr, false); 00110 00111 // cache these results: 00112 mShotsCache->SetEmpty(); 00113 std::map<int,bool> noduplicates; 00114 Table::SimilarityTableSet::RankTableType* ranktable = mSimSet->GetRankTable(0); 00115 Table::SimilarityTableSet::SimTableType* scoretable = mSimSet->GetSimTable(0); 00116 for (int i = 0; i < nr; i ++) 00117 { 00118 Quid thisresult = ranktable->Get1(i); 00119 int keyframe = mKeyframes->GetFrameId(thisresult); 00120 Real64 score = scoretable->Get1(mSimSet->FindQuid(thisresult)); 00121 00122 if (keyframe < 0) 00123 continue; 00124 00125 int shot = mKeyframes->GetShotId(keyframe); 00126 00127 if (shot >= 0 && 00128 noduplicates.find(shot) == noduplicates.end()) 00129 { 00130 mShotsCache->Add(shot, i, score); 00131 noduplicates[shot] = true; 00132 } 00133 } 00134 //ILOG_ENDACTION("computing visual similary"); 00135 mOrigin = shot; 00136 }
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