Ejemplo n.º 1
0
 public static void detectMotion(Mat src, Mat dst) {
   //		temp = prevgray;
   //		prevgray = gray;
   //		gray = temp;
   cvt_YUVtoGRAY(src, Sample1View.gray);
   if (!Sample1View.prevgray.empty()) {
     Video.calcOpticalFlowFarneback(
         Sample1View.prevgray, Sample1View.gray, Sample1View.flow, 0.5, 3, 15, 3, 5, 1.2, 0);
     Imgproc.cvtColor(Sample1View.prevgray, dst, Imgproc.COLOR_GRAY2RGB);
     draw_opticflow(Sample1View.flow, dst, 36, new Scalar(0, 255, 0));
     //	    	cvt_YUVtoGRAY(src, dst);
   }
   //		gray.copyTo(prevgray);
   Sample1View.prevgray = Sample1View.gray;
   try {
     Thread.sleep(20);
   } catch (Exception e) {
     // TODO Auto-generated catch block
     e.printStackTrace();
   }
   //    	cvt_YUVtoGRAY(src, dst);
 }
  void hpTrack(Mat mRgba, WorkingHeadPose hp, Rect[] facesArray) {
    MatOfByte status = new MatOfByte();
    // Mat prev=new Mat(mRgba.width(),mRgba.height(),CvType.CV_8UC1);
    // Mat curr=new Mat(mRgba.width(),mRgba.height(),CvType.CV_8UC1);
    Mat prev = new Mat(mRgba.size(), CvType.CV_8UC1);
    Mat curr = new Mat(mRgba.size(), CvType.CV_8UC1);
    MatOfPoint2f tmpCorners = new MatOfPoint2f();
    MatOfFloat err = new MatOfFloat();
    int i, j, count;
    TermCriteria optical_flow_termination_criteria =
        new TermCriteria(); // =(TermCriteria.MAX_ITER|TermCriteria.EPS,20,.3);//  (
                            // CV_TERMCRIT_ITER | CV_TERMCRIT_EPS, 20, .3 );
    optical_flow_termination_criteria.epsilon = .3;
    optical_flow_termination_criteria.maxCount = 20;
    // Good features to track
    Imgproc.cvtColor(hp.previousFrame, prev, Imgproc.COLOR_RGBA2GRAY, 0);
    Imgproc.cvtColor(mRgba, curr, Imgproc.COLOR_RGBA2GRAY, 0);
    // Video.calcOpticalFlowPyrLK(prev, curr,hp.previousCorners,tmpCorners,status,new MatOfFloat(),
    // new Size(10,10), 3,optical_flow_termination_criteria, 0, 1);
    // http://stackoverflow.com/questions/12561292/android-using-calcopticalflowpyrlk-with-matofpoint2f
    if (hp.previousCorners.total() > 0)
      // Video.calcOpticalFlowPyrLK(prev, curr,hp.previousCorners,tmpCorners,status,new
      // MatOfFloat(), new Size(11,11),5,optical_flow_termination_criteria, 0, 1);
      Video.calcOpticalFlowPyrLK(prev, curr, hp.previousCorners, tmpCorners, status, err);

    /*Point[] pointp = hp.previousCorners.toArray();
    Point[] pointn = tmpCorners.toArray();
    for (Point px : pointp)
    { Core.circle(mRgba, px, 15, new Scalar(255,0,0)); }
    for (Point py : pointn)
    { Core.circle(mRgba, py, 5, new Scalar(0,0,255)); }
    */

    // Point a,b;
    // a=new Point();
    // b=new Point();
    /*if(TempFace.length>0)
    	{

    	for( i = 0; i < hp.tempcorners.total(); i++ )
    	{
    		//center.x=facearray1[0].x + hp.corners.toList().get(i).x;
    		//center.y=facearray1[0].y + hp.corners.toList().get(i).y;
    		Point a = new Point(TempFace[0].tl().x+hp.tempcorners.toList().get(i).x,TempFace[0].tl().x+hp.tempcorners.toList().get(i).y);
    		Point b= new Point(TempFace[0].tl().y+tmpCorners.toList().get(i).x,TempFace[0].tl().y+tmpCorners.toList().get(i).y);
    		Core.line(mRgba, a,b, new Scalar(255,0,0),2);
    	}
    	}
    */
    count = 0;
    for (i = 0; i < hp.cornerCount; i += 1) {
      if (i == hp.corners.total()) break;
      if (status.toList().get(i) == 1) {
        count += 1;
      }
    }

    // Replace headPose->corners and headPose->modelPoints
    // imran
    // http://stackoverflow.com/questions/11273588/how-to-convert-matofpoint-to-matofpoint2f-in-opencv-java-api

    MatOfPoint2f corners2f = new MatOfPoint2f();
    hp.corners.convertTo(corners2f, CvType.CV_32FC2);
    List<Point> plist = new ArrayList<Point>();

    for (i = 0, j = 0; i < hp.cornerCount; i += 1) {
      if (i == hp.corners.total()) break;
      if (status.toList().get(i) == 1) {

        // plist.add(tmpCorners.toList().get(i));
        corners2f
            .toList()
            .set(j, tmpCorners.toList().get(i)); // .get(i)=tmpCorners.toList().get(i);
        hp.modelPoints.toList().set(j, hp.modelPoints.toList().get(i));
        // =hp.modelPoints.toList().get(i);

        // hp.corners[j] = tmpCorners[i];
        // headPose->modelPoints[j] = headPose->modelPoints[i];
        j += 1;
      }
    }
    // corners2f.fromList(plist);
    corners2f.convertTo(hp.corners, CvType.CV_32S);
    Log.i("CournerCount", "Reassigning" + count);
    hp.cornerCount = count;
  }