66     if (query.empty() || train.empty())  in ocl_matchSingle()
97     if(k.empty())  in ocl_matchSingle()
119     if (trainIdx.empty() || distance.empty())  in ocl_matchConvert()
152     if (trainIdx.empty() || distance.empty())  in ocl_matchDownload()
164     if (query.empty() || train.empty())  in ocl_knnMatchSingle()
197     if(k.empty())  in ocl_knnMatchSingle()
219     if (trainIdx.empty() || distance.empty())  in ocl_knnMatchConvert()
256         if (compactResult && curMatches.empty())  in ocl_knnMatchConvert()
264     if (trainIdx.empty() || distance.empty())  in ocl_knnMatchDownload()
276     if (query.empty() || train.empty())  in ocl_radiusMatchSingle()
284     if (trainIdx.empty())  in ocl_radiusMatchSingle()
306     if (k.empty())  in ocl_radiusMatchSingle()
333     if (trainIdx.empty() || distance.empty() || _nMatches.empty())  in ocl_radiusMatchConvert()
384     if (trainIdx.empty() || distance.empty() || nMatches.empty())  in ocl_radiusMatchDownload()
424         if( !descriptors[i-1].empty() )  in set()
434         if( descriptors[0].empty() ) return;  in set()
448             if( !descriptors[i].empty() )  in set()
508         if( !knnMatches[i].empty() )  in convertMatches()
555 bool DescriptorMatcher::empty() const  in empty()  function in cv::DescriptorMatcher
557     return trainDescCollection.empty() && utrainDescCollection.empty();  in empty()
601     if( isMaskSupported() && !masks.empty() )  in checkMasks()
608 …  if( !masks[i].empty() && (!trainDescCollection[i].empty() || !utrainDescCollection[i].empty() ) )  in checkMasks()
610 …int rows = trainDescCollection[i].empty() ? utrainDescCollection[i].rows : trainDescCollection[i].…  in checkMasks()
622     if( empty() || queryDescriptors.empty() )  in knnMatch()
637     if( empty() || queryDescriptors.empty() )  in radiusMatch()
657     return mask.empty() || mask.at<uchar>(queryIdx, trainIdx);  in isPossibleMatch()
668         if( !masks[i].empty() && (countNonZero(masks[i].row(queryIdx)) == 0) )  in isMaskedOut()
672     return !masks.empty() && outCount == masks.size() ;  in isMaskedOut()
721 …int trainDescType = trainDescCollection.empty() ? utrainDescCollection[0].type() : trainDescCollec…  in knnMatchImpl()
727     if( _queryDescriptors.empty() || (trainDescCollection.empty() && utrainDescCollection.empty()))  in knnMatchImpl()
736     if(!trainDescCollection.empty() && !utrainDescCollection.empty())  in knnMatchImpl()
747 …int trainDescVectorSize = trainDescCollection.empty() ? (int)utrainDescCollection.size() : (int)tr…  in knnMatchImpl()
748 …Size trainDescSize = trainDescCollection.empty() ? utrainDescCollection[0].size() : trainDescColle…  in knnMatchImpl()
749     int trainDescOffset = trainDescCollection.empty() ? (int)utrainDescCollection[0].offset : 0;  in knnMatchImpl()
757             if(trainDescCollection.empty())  in knnMatchImpl()
776             if(trainDescCollection.empty())  in knnMatchImpl()
796     if(trainDescCollection.empty() && !utrainDescCollection.empty())  in knnMatchImpl()
821                       normType, knn, masks.empty() ? Mat() : masks[iIdx], update, crossCheck);  in knnMatchImpl()
849         if( mq.empty() && compactResult )  in knnMatchImpl()
868 …int trainDescType = trainDescCollection.empty() ? utrainDescCollection[0].type() : trainDescCollec…  in radiusMatchImpl()
871     if( _queryDescriptors.empty() || (trainDescCollection.empty() && utrainDescCollection.empty()))  in radiusMatchImpl()
880     if(!trainDescCollection.empty() && !utrainDescCollection.empty())  in radiusMatchImpl()
891 …int trainDescVectorSize = trainDescCollection.empty() ? (int)utrainDescCollection.size() : (int)tr…  in radiusMatchImpl()
892 …Size trainDescSize = trainDescCollection.empty() ? utrainDescCollection[0].size() : trainDescColle…  in radiusMatchImpl()
893     int trainDescOffset = trainDescCollection.empty() ? (int)utrainDescCollection[0].offset : 0;  in radiusMatchImpl()
899         if (trainDescCollection.empty())  in radiusMatchImpl()
918     if(trainDescCollection.empty() && !utrainDescCollection.empty())  in radiusMatchImpl()
939                       normType, 0, masks.empty() ? Mat() : masks[iIdx], 0, false);  in radiusMatchImpl()
961         if( matches[qIdx].empty() && compactResult )  in radiusMatchImpl()
1049         if (!utrainDescCollection.empty())  in train()