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+/*M///////////////////////////////////////////////////////////////////////////////////////
+//
+// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
+//
+// By downloading, copying, installing or using the software you agree to this license.
+// If you do not agree to this license, do not download, install,
+// copy or use the software.
+//
+//
+// License Agreement
+// For Open Source Computer Vision Library
+//
+// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
+// Copyright (C) 2009-2011, Willow Garage Inc., all rights reserved.
+// Third party copyrights are property of their respective owners.
+//
+// Redistribution and use in source and binary forms, with or without modification,
+// are permitted provided that the following conditions are met:
+//
+// * Redistribution's of source code must retain the above copyright notice,
+// this list of conditions and the following disclaimer.
+//
+// * Redistribution's in binary form must reproduce the above copyright notice,
+// this list of conditions and the following disclaimer in the documentation
+// and/or other materials provided with the distribution.
+//
+// * The name of the copyright holders may not be used to endorse or promote products
+// derived from this software without specific prior written permission.
+//
+// This software is provided by the copyright holders and contributors "as is" and
+// any express or implied warranties, including, but not limited to, the implied
+// warranties of merchantability and fitness for a particular purpose are disclaimed.
+// In no event shall the Intel Corporation or contributors be liable for any direct,
+// indirect, incidental, special, exemplary, or consequential damages
+// (including, but not limited to, procurement of substitute goods or services;
+// loss of use, data, or profits; or business interruption) however caused
+// and on any theory of liability, whether in contract, strict liability,
+// or tort (including negligence or otherwise) arising in any way out of
+// the use of this software, even if advised of the possibility of such damage.
+//
+//M*/
+
+#ifndef __OPENCV_VIDEOSTAB_GLOBAL_MOTION_HPP__
+#define __OPENCV_VIDEOSTAB_GLOBAL_MOTION_HPP__
+
+#include <vector>
+#include "opencv2/core/core.hpp"
+#include "opencv2/features2d/features2d.hpp"
+#include "opencv2/videostab/optical_flow.hpp"
+
+namespace cv
+{
+namespace videostab
+{
+
+enum MotionModel
+{
+ TRANSLATION = 0,
+ TRANSLATION_AND_SCALE = 1,
+ LINEAR_SIMILARITY = 2,
+ AFFINE = 3
+};
+
+CV_EXPORTS Mat estimateGlobalMotionLeastSquares(
+ const std::vector<Point2f> &points0, const std::vector<Point2f> &points1,
+ int model = AFFINE, float *rmse = 0);
+
+struct CV_EXPORTS RansacParams
+{
+ int size; // subset size
+ float thresh; // max error to classify as inlier
+ float eps; // max outliers ratio
+ float prob; // probability of success
+
+ RansacParams(int _size, float _thresh, float _eps, float _prob)
+ : size(_size), thresh(_thresh), eps(_eps), prob(_prob) {}
+
+ static RansacParams translationMotionStd() { return RansacParams(2, 0.5f, 0.5f, 0.99f); }
+ static RansacParams translationAndScale2dMotionStd() { return RansacParams(3, 0.5f, 0.5f, 0.99f); }
+ static RansacParams linearSimilarityMotionStd() { return RansacParams(4, 0.5f, 0.5f, 0.99f); }
+ static RansacParams affine2dMotionStd() { return RansacParams(6, 0.5f, 0.5f, 0.99f); }
+};
+
+CV_EXPORTS Mat estimateGlobalMotionRobust(
+ const std::vector<Point2f> &points0, const std::vector<Point2f> &points1,
+ int model = AFFINE, const RansacParams &params = RansacParams::affine2dMotionStd(),
+ float *rmse = 0, int *ninliers = 0);
+
+class CV_EXPORTS IGlobalMotionEstimator
+{
+public:
+ virtual ~IGlobalMotionEstimator() {}
+ virtual Mat estimate(const Mat &frame0, const Mat &frame1) = 0;
+};
+
+class CV_EXPORTS PyrLkRobustMotionEstimator : public IGlobalMotionEstimator
+{
+public:
+ PyrLkRobustMotionEstimator();
+
+ void setDetector(Ptr<FeatureDetector> val) { detector_ = val; }
+ Ptr<FeatureDetector> detector() const { return detector_; }
+
+ void setOptFlowEstimator(Ptr<ISparseOptFlowEstimator> val) { optFlowEstimator_ = val; }
+ Ptr<ISparseOptFlowEstimator> optFlowEstimator() const { return optFlowEstimator_; }
+
+ void setMotionModel(MotionModel val) { motionModel_ = val; }
+ MotionModel motionModel() const { return motionModel_; }
+
+ void setRansacParams(const RansacParams &val) { ransacParams_ = val; }
+ RansacParams ransacParams() const { return ransacParams_; }
+
+ void setMaxRmse(float val) { maxRmse_ = val; }
+ float maxRmse() const { return maxRmse_; }
+
+ void setMinInlierRatio(float val) { minInlierRatio_ = val; }
+ float minInlierRatio() const { return minInlierRatio_; }
+
+ virtual Mat estimate(const Mat &frame0, const Mat &frame1);
+
+private:
+ Ptr<FeatureDetector> detector_;
+ Ptr<ISparseOptFlowEstimator> optFlowEstimator_;
+ MotionModel motionModel_;
+ RansacParams ransacParams_;
+ std::vector<uchar> status_;
+ std::vector<KeyPoint> keypointsPrev_;
+ std::vector<Point2f> pointsPrev_, points_;
+ std::vector<Point2f> pointsPrevGood_, pointsGood_;
+ float maxRmse_;
+ float minInlierRatio_;
+};
+
+CV_EXPORTS Mat getMotion(int from, int to, const Mat *motions, int size);
+
+CV_EXPORTS Mat getMotion(int from, int to, const std::vector<Mat> &motions);
+
+} // namespace videostab
+} // namespace cv
+
+#endif