2
SIFT, SURF, BRIEF 및 ORB의 기능을 보여주는 간단한 애플리케이션 (sample2 수정)을 구현하고 싶습니다. 사용자는 단순히 회전 또는 스케일 불변성 또는 속도를 비교할 수 있습니다. 그러나 나는 당신을 도울 수 있도록 내가 할 수없는 실패를 발견했습니다. 내가 SIFT 또는 SURF를 사용하려고하면 I가 일치 할 때 난 항상 라인에 예외를 얻을 :패턴 인식 알고리즘으로 예외 얻기 ANDROID에 대한 OpenCV에서 SIUR, SURF, SIFT
matcherBruteForce.match(descriptorFrame, matches); 내가 비슷한 AR 응용 프로그램이 이러한 설정이 작동, 그래서 내가 실수를 해요 어디 알아낼 수 없습니다 . 변수 "matcherBruteForce"를 BRUTEFORCE, BRUTEFORCE_L1, BRUTEFORCE_SL2 이벤트를 BRUTEFORCE_HAMMING으로 설정하려고했습니다. 하지만 난 항상 같은 예외를 가지고 :
SIFT :
CvException [org.opencv.core.CvException: /home/andreyk/OpenCV2/trunk/opencv_2.3.1.b2/modules/features2d/include/opencv2/features2d/features2d.hpp:2455: error: (-215) DataType<ValueType>::type == matcher.trainDescCollection[iIdx].type() || matcher.trainDescCollection[iIdx].empty() in function static void cv::BruteForceMatcher<Distance>::commonKnnMatchImpl(cv::BruteForceMatcher<Distance>&, const cv::Mat&, std::vector<std::vector<cv::DMatch> >&, int, const std::vector<cv::Mat>&, bool) [with Distance = cv::SL2<float>]
]
SURF :
어떤 도움이 감사CvException [org.opencv.core.CvException: /home/andreyk/OpenCV2/trunk/opencv_2.3.1.b2/modules/features2d/include/opencv2/features2d/features2d.hpp:2455: error: (-215) DataType<ValueType>::type == matcher.trainDescCollection[iIdx].type() || matcher.trainDescCollection[iIdx].empty() in function static void cv::BruteForceMatcher<Distance>::commonKnnMatchImpl(cv::BruteForceMatcher<Distance>&, const cv::Mat&, std::vector<std::vector<cv::DMatch> >&, int, const std::vector<cv::Mat>&, bool) [with Distance = cv::SL2<float>]
]
전체 클래스 : 당신이
package sk.bolyos.opencv;
import java.util.Vector;
import org.opencv.features2d.DMatch;
import org.opencv.features2d.DescriptorExtractor;
import org.opencv.features2d.DescriptorMatcher;
import org.opencv.features2d.FeatureDetector;
import org.opencv.features2d.Features2d;
import org.opencv.features2d.KeyPoint;
import org.opencv.highgui.VideoCapture;
import org.opencv.android.Utils;
import org.opencv.core.Mat;
import org.opencv.core.Size;
import org.opencv.imgproc.Imgproc;
import org.opencv.highgui.Highgui;
import sk.bolyos.svk.*;
import android.content.Context;
import android.graphics.Bitmap;
import android.util.Log;
import android.view.SurfaceHolder;
public class MyView extends CvViewBase {
private static final int BOUNDARY = 35;
private Mat mRgba;
private Mat mGray;
private Mat mIntermediateMat;
private Mat mLogoMilka1,mLogoMilka2,mLogoMilka3,mLogoMilka4;
///////////////////DETECTORS
FeatureDetector siftDetector = FeatureDetector.create(FeatureDetector.SIFT);
FeatureDetector surfDetector = FeatureDetector.create(FeatureDetector.SURF);
FeatureDetector fastDetector = FeatureDetector.create(FeatureDetector.FAST);
FeatureDetector orbDetector = FeatureDetector.create(FeatureDetector.ORB);
///////////////////DESCRIPTORS
DescriptorExtractor siftDescriptor = DescriptorExtractor.create(DescriptorExtractor.SIFT);
DescriptorExtractor surfDescriptor = DescriptorExtractor.create(DescriptorExtractor.SURF);
DescriptorExtractor briefDescriptor = DescriptorExtractor.create(DescriptorExtractor.BRIEF);
DescriptorExtractor orbDescriptor = DescriptorExtractor.create(DescriptorExtractor.ORB);
///////////////////DATABASE
Vector<KeyPoint> vectorMilka1 = new Vector<KeyPoint>();
Vector<KeyPoint> vectorMilka2 = new Vector<KeyPoint>();
Vector<KeyPoint> vectorMilka3 = new Vector<KeyPoint>();
Vector<KeyPoint> vectorMilka4 = new Vector<KeyPoint>();
Mat descriptorMilka1 = new Mat();
Mat descriptorMilka2 = new Mat();
Mat descriptorMilka3 = new Mat();
Mat descriptorMilka4 = new Mat();
///////////////////VIDEO
Vector<KeyPoint> vectorFrame = new Vector<KeyPoint>();
Mat descriptorFrame = new Mat();
DescriptorMatcher matcherHamming = DescriptorMatcher.create(DescriptorMatcher.BRUTEFORCE_HAMMINGLUT);
DescriptorMatcher matcherBruteForce = DescriptorMatcher.create(DescriptorMatcher.BRUTEFORCE_SL2);
Vector<DMatch> matches = new Vector<DMatch>();
Vector<Mat> siftDescriptors = new Vector<Mat>();
Vector<Mat> surfDescriptors = new Vector<Mat>();
Vector<Mat> briefDescriptors = new Vector<Mat>();
Vector<Mat> orbDescriptors = new Vector<Mat>();
public MyView(Context context) {
super(context);
// TODO Auto-generated constructor stub
try{
/*
if (mLogoMilka1 == null){
mLogoMilka1 = new Mat();
mLogoMilka1 = Utils.loadResource(getContext(), R.drawable.milkalogo);
fillDB(mLogoMilka1,vectorMilka1,descriptorMilka1);
}
if (mLogoMilka2 == null){
mLogoMilka2 = new Mat();
mLogoMilka2 = Utils.loadResource(getContext(), R.drawable.milkalogom);
fillDB(mLogoMilka2,vectorMilka2,descriptorMilka2);
}
if (mLogoMilka3 == null){
mLogoMilka3 = new Mat();
mLogoMilka3 = Utils.loadResource(getContext(), R.drawable.milkalogol);
fillDB(mLogoMilka3,vectorMilka3,descriptorMilka3);
}*/
if (mLogoMilka4 == null){
mLogoMilka4 = new Mat();
mLogoMilka4 = Utils.loadResource(getContext(), R.drawable.milkalogolc);
fillDB(mLogoMilka4,vectorMilka4,descriptorMilka4);
}
}catch(Exception e){
Log.e("SVK APPLICATION", "in MyView constructor "+e.toString());
}
}
public void fillDB(Mat mLogo,Vector<KeyPoint> vector,Mat descriptor){
//SIFT
siftDetector.detect(mLogo, vector);
siftDescriptor.compute(mLogo, vector, descriptor);
siftDescriptors.add(descriptor);
//SURF
surfDetector.detect(mLogo, vector);
surfDescriptor.compute(mLogo, vector, descriptor);
surfDescriptors.add(descriptor);
//FAST+BRIEF
fastDetector.detect(mLogo, vector);
briefDescriptor.compute(mLogo, vector, descriptor);
briefDescriptors.add(descriptor);
//ORB
orbDetector.detect(mLogo, vector);
orbDescriptor.compute(mLogo, vector, descriptor);
orbDescriptors.add(descriptor);
}
@Override
public void surfaceChanged(SurfaceHolder _holder, int format, int width, int height) {
super.surfaceChanged(_holder, format, width, height);
synchronized (this) {
// initialize Mats before usage
mGray = new Mat();
mRgba = new Mat();
mIntermediateMat = new Mat();
matches = new Vector<DMatch>();
vectorFrame = new Vector<KeyPoint>();
descriptorFrame = new Mat();
}
}
@Override
protected Bitmap processFrame(VideoCapture capture) {
// TODO Auto-generated method stub
switch (SVKApplikaciaActivity.viewMode) {
case SVKApplikaciaActivity.VIEW_MODE_SIFT:
//TODO SIFT
try{
//matcherBruteForce = DescriptorMatcher.create(DescriptorMatcher.BRUTEFORCE);
//matcherBruteForce.clear();
matcherBruteForce.add(siftDescriptors);
matcherBruteForce.train();// proba
capture.retrieve(mGray, Highgui.CV_CAP_ANDROID_COLOR_FRAME_RGBA);
Imgproc.resize(mGray, mGray,new Size(480,320));
siftDetector.detect(mGray, vectorFrame);
siftDescriptor.compute(mGray, vectorFrame, descriptorFrame);
matcherBruteForce.match(descriptorFrame, matches);
Vector<DMatch> matchesXXX = new Vector<DMatch>();
for (DMatch t : matches)
if(t.distance<BOUNDARY)
matchesXXX.add(t);
Mat nGray = new Mat();
Mat nLogo = new Mat();
Mat nRgba = new Mat();
Imgproc.cvtColor(mGray, nGray, Imgproc.COLOR_RGBA2RGB, 3);
Imgproc.cvtColor(mLogoMilka4, nLogo, Imgproc.COLOR_RGBA2BGR, 3);
Features2d.drawMatches(nGray, vectorFrame, nLogo, vectorMilka4, matchesXXX, nRgba);
Imgproc.cvtColor(nRgba, mRgba, Imgproc.COLOR_RGB2RGBA, 4);
}catch(Exception e){
Log.e("SVK APPLICATION","in SIFT "+ e.toString());
}
break;
case SVKApplikaciaActivity.VIEW_MODE_SURF:
//TODO SURF
try{
//matcherBruteForce = DescriptorMatcher.create(DescriptorMatcher.BRUTEFORCE);
//matcherBruteForce.clear();
matcherBruteForce.add(surfDescriptors);
matcherBruteForce.train();// proba
capture.retrieve(mGray, Highgui.CV_CAP_ANDROID_COLOR_FRAME_RGBA);
Imgproc.resize(mGray, mGray,new Size(480,320));
surfDetector.detect(mGray, vectorFrame);
surfDescriptor.compute(mGray, vectorFrame, descriptorFrame);
matcherBruteForce.match(descriptorFrame, matches);
Vector<DMatch> matchesXXX = new Vector<DMatch>();
for (DMatch t : matches)
if(t.distance<BOUNDARY)
matchesXXX.add(t);
Mat nGray = new Mat();
Mat nLogo = new Mat();
Mat nRgba = new Mat();
Imgproc.cvtColor(mGray, nGray, Imgproc.COLOR_RGBA2RGB, 3);
Imgproc.cvtColor(mLogoMilka4, nLogo, Imgproc.COLOR_RGBA2BGR, 3);
Features2d.drawMatches(nGray, vectorFrame, nLogo, vectorMilka4, matchesXXX, nRgba);
Imgproc.cvtColor(nRgba, mRgba, Imgproc.COLOR_RGB2RGBA, 4);
}catch(Exception e){
Log.e("SVK APPLICATION","in Surf "+ e.toString());
}
break;
case SVKApplikaciaActivity.VIEW_MODE_BRIEF:
//TODO BRIEF
try{
matcherHamming = DescriptorMatcher.create(DescriptorMatcher.BRUTEFORCE_HAMMINGLUT);
matcherHamming.add(briefDescriptors);
matcherHamming.train();// proba
capture.retrieve(mGray, Highgui.CV_CAP_ANDROID_COLOR_FRAME_RGBA);
Imgproc.resize(mGray, mGray,new Size(480,320));
fastDetector.detect(mGray, vectorFrame);
briefDescriptor.compute(mGray, vectorFrame, descriptorFrame);
matcherHamming.match(descriptorFrame, matches);
Vector<DMatch> matchesXXX = new Vector<DMatch>();
for (DMatch t : matches)
if(t.distance<BOUNDARY)
matchesXXX.add(t);
Mat nGray = new Mat();
Mat nLogo = new Mat();
Mat nRgba = new Mat();
Imgproc.cvtColor(mGray, nGray, Imgproc.COLOR_RGBA2RGB, 3);
Imgproc.cvtColor(mLogoMilka4, nLogo, Imgproc.COLOR_RGBA2BGR, 3);
Features2d.drawMatches(nGray, vectorFrame, nLogo, vectorMilka4, matchesXXX, nRgba);
Imgproc.cvtColor(nRgba, mRgba, Imgproc.COLOR_RGB2RGBA, 4);
}catch(Exception e){
Log.e("SVK APPLICATION","in Brief "+ e.toString());
}
break;
case SVKApplikaciaActivity.VIEW_MODE_ORB:
//TODO ORB
try{
matcherHamming = DescriptorMatcher.create(DescriptorMatcher.BRUTEFORCE_HAMMINGLUT);
matcherHamming.add(orbDescriptors);
matcherHamming.train();// proba
capture.retrieve(mGray, Highgui.CV_CAP_ANDROID_COLOR_FRAME_RGBA);
Imgproc.resize(mGray, mGray,new Size(480,320));
orbDetector.detect(mGray, vectorFrame);
orbDescriptor.compute(mGray, vectorFrame, descriptorFrame);
matcherHamming.match(descriptorFrame, matches);
Vector<DMatch> matchesXXX = new Vector<DMatch>();
for (DMatch t : matches)
if(t.distance<BOUNDARY)
matchesXXX.add(t);
Mat nGray = new Mat();
Mat nLogo = new Mat();
Mat nRgba = new Mat();
Imgproc.cvtColor(mGray, nGray, Imgproc.COLOR_RGBA2RGB, 3);
Imgproc.cvtColor(mLogoMilka4, nLogo, Imgproc.COLOR_RGBA2BGR, 3);
Features2d.drawMatches(nGray, vectorFrame, nLogo, vectorMilka4, matchesXXX, nRgba);
Imgproc.cvtColor(nRgba, mRgba, Imgproc.COLOR_RGB2RGBA, 4);
}catch(Exception e){
Log.e("SVK APPLICATION","in ORB "+ e.toString());
}
break;
case SVKApplikaciaActivity.VIEW_MODE_AR:
//TODO AR
break;
}
Bitmap bmp = Bitmap.createBitmap(mRgba.cols(), mRgba.rows(), Bitmap.Config.ARGB_8888);
if (Utils.matToBitmap(mRgba, bmp))
return bmp;
bmp.recycle();
return null;
}
@Override
public void run() {
super.run();
synchronized (this) {
// Explicitly deallocate Mats
if (mRgba != null)
mRgba.release();
if (mGray != null)
mGray.release();
if (mIntermediateMat != null)
mIntermediateMat.release();
mRgba = null;
mGray = null;
mIntermediateMat = null;
}
}
}
나는 그 이유를 해결했지만, 그것은 bruteforce matcher가 이미 SL2이기 때문에 당신의 대답이 아닙니다. 그 이유는 서핑 오브 서핑 설명 서를 별도로 설정하지 않았기 때문입니다. 하지만 고마워. – Csabi
그래 .. 나도 그걸 깨달았다. 그래도 별개의 표제 (orb descriptor)를 설정하지 않았다는 것을 무엇을 의미합니까? –
필자는 fillDB 함수를 사용하지 않고 모든 ORB/BRIEF/SURF/SIFT에 별도의 디스크립터를 사용합니다. – Csabi