Example usage for org.opencv.calib3d Calib3d calibrateCamera

Introduction

In this page you can find the example usage for org.opencv.calib3d Calib3d calibrateCamera.

Prototype

public static double calibrateCamera(List<Mat> objectPoints, List<Mat> imagePoints, Size imageSize,
            Mat cameraMatrix, Mat distCoeffs, List<Mat> rvecs, List<Mat> tvecs, int flags) 

Source Link

Usage

From source file:de.vion.eyetracking.cameracalib.calibration.opencv.CameraCalibrator.java

public void calibrate() {
    ArrayList<Mat> rvecs = new ArrayList<Mat>();
    ArrayList<Mat> tvecs = new ArrayList<Mat>();
    Mat reprojectionErrors = new Mat();
    ArrayList<Mat> objectPoints = new ArrayList<Mat>();
    objectPoints.add(Mat.zeros(this.mCornersSize, 1, CvType.CV_32FC3));
    calcBoardCornerPositions(objectPoints.get(0));
    for (int i = 1; i < this.mCornersBuffer.size(); i++) {
        objectPoints.add(objectPoints.get(0));
    }/*  w ww . j av a2 s  .  c o  m*/

    Calib3d.calibrateCamera(objectPoints, this.mCornersBuffer, this.mImageSize, this.mCameraMatrix,
            this.mDistortionCoefficients, rvecs, tvecs, this.mFlags);

    this.mIsCalibrated = Core.checkRange(this.mCameraMatrix) && Core.checkRange(this.mDistortionCoefficients);

    this.mRms = computeReprojectionErrors(objectPoints, rvecs, tvecs, reprojectionErrors);
}

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From source file:org.usfirst.frc.team2084.CMonster2016.vision.CameraCalibration.java

License:Open Source License

/**
 * Calibrate the camera. This goes through all the corners in the list and
 * calibrates based off them./* ww w .  j av a2 s  .  co m*/
 * 
 * @return the reprojection error
 */
public double calibrate() {
    cameraMatrix = Mat.eye(3, 3, CvType.CV_64F);
    distCoeffs = new MatOfDouble(Mat.zeros(8, 1, CvType.CV_64F));
    List<Mat> rvecs = new LinkedList<>();
    List<Mat> tvecs = new LinkedList<>();

    // Set the fixed aspect ratio
    cameraMatrix.put(0, 0, aspectRatio);

    List<Mat> objectPoints = Collections.nCopies(calibrationCorners.size(), calcBoardCornerPositions());

    System.out.println(cameraMatrix);
    return error = Calib3d.calibrateCamera(objectPoints, calibrationCorners, HighGoalProcessor.IMAGE_SIZE,
            cameraMatrix, distCoeffs, rvecs, tvecs, Calib3d.CALIB_FIX_PRINCIPAL_POINT);
}

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