001/**
002 * Copyright (c) 2011, The University of Southampton and the individual contributors.
003 * All rights reserved.
004 *
005 * Redistribution and use in source and binary forms, with or without modification,
006 * are permitted provided that the following conditions are met:
007 *
008 *   *  Redistributions of source code must retain the above copyright notice,
009 *      this list of conditions and the following disclaimer.
010 *
011 *   *  Redistributions in binary form must reproduce the above copyright notice,
012 *      this list of conditions and the following disclaimer in the documentation
013 *      and/or other materials provided with the distribution.
014 *
015 *   *  Neither the name of the University of Southampton nor the names of its
016 *      contributors may be used to endorse or promote products derived from this
017 *      software without specific prior written permission.
018 *
019 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
020 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
021 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
022 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
023 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
024 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
025 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
026 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
027 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
028 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
029 */
030package org.openimaj.image.feature.local.detector.ipd.collector;
031
032import org.openimaj.feature.OrientedFeatureVector;
033import org.openimaj.image.FImage;
034import org.openimaj.image.feature.local.detector.ipd.extractor.InterestPointGradientFeatureExtractor;
035import org.openimaj.image.feature.local.engine.ipd.InterestPointImageExtractorProperties;
036import org.openimaj.image.feature.local.interest.InterestPointData;
037
038/**
039 * Ignore the local shape of interest points, instead extracting a patch dependent on scale.
040 * 
041 * @author Sina Samangooei (ss@ecs.soton.ac.uk)
042 *
043 */
044public class CircularInterestPointFeatureCollector extends InterestPointFeatureCollector<InterestPointData>{
045        
046        /**
047         * @param extractor
048         */
049        public CircularInterestPointFeatureCollector(InterestPointGradientFeatureExtractor extractor) {
050                super(extractor);
051        }
052
053        @Override
054        public void foundInterestPoint(FImage image,InterestPointData point){
055                InterestPointImageExtractorProperties<Float,FImage> property = new InterestPointImageExtractorProperties<Float,FImage>(image,point,false);
056                OrientedFeatureVector[] extracted = extractor.extractFeature(property);
057                
058                for(OrientedFeatureVector feature : extracted){
059                        features.add(new CircularInterestPointKeypoint(feature,point.clone()));
060                }
061                
062        }
063
064        @Override
065        public void foundInterestPoint(FImage image, InterestPointData point,double octaveSize) {
066                InterestPointImageExtractorProperties<Float,FImage> property = new InterestPointImageExtractorProperties<Float,FImage>(image,point,false);
067                OrientedFeatureVector[] extracted = extractor.extractFeature(property);
068                
069                for(OrientedFeatureVector feature : extracted){
070                        point = point.clone();
071                        point.scale *= octaveSize;
072                        point.x *= octaveSize;
073                        point.y *= octaveSize;
074                        features.add(new CircularInterestPointKeypoint(feature,point.clone()));
075                }
076                
077        }
078
079}