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opencv/modules/video/src/tracking/detail/tracker_mil_model.cpp
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Alexander Alekhin aab6362705 Merge pull request #18838 from alalek:video_tracking_api
Tracking API: move to video/tracking.hpp

* video(tracking): moved code from opencv_contrib/tracking module

- Tracker API
- MIL, GOTURN trackers
- applied clang-format

* video(tracking): cleanup unused code

* samples: add tracker.py sample

* video(tracking): avoid div by zero

* static analyzer
2020-11-18 11:04:15 +00:00

86 lines
2.6 KiB
C++

// This file is part of OpenCV project.
// It is subject to the license terms in the LICENSE file found in the top-level directory
// of this distribution and at http://opencv.org/license.html.
#include "../../precomp.hpp"
#include "tracker_mil_model.hpp"
/**
* TrackerMILModel
*/
namespace cv {
inline namespace tracking {
namespace impl {
TrackerMILModel::TrackerMILModel(const Rect& boundingBox)
{
currentSample.clear();
mode = MODE_POSITIVE;
width = boundingBox.width;
height = boundingBox.height;
Ptr<TrackerStateEstimatorMILBoosting::TrackerMILTargetState> initState = Ptr<TrackerStateEstimatorMILBoosting::TrackerMILTargetState>(
new TrackerStateEstimatorMILBoosting::TrackerMILTargetState(Point2f((float)boundingBox.x, (float)boundingBox.y), boundingBox.width, boundingBox.height,
true, Mat()));
trajectory.push_back(initState);
}
void TrackerMILModel::responseToConfidenceMap(const std::vector<Mat>& responses, ConfidenceMap& confidenceMap)
{
if (currentSample.empty())
{
CV_Error(-1, "The samples in Model estimation are empty");
}
for (size_t i = 0; i < responses.size(); i++)
{
//for each column (one sample) there are #num_feature
//get informations from currentSample
for (int j = 0; j < responses.at(i).cols; j++)
{
Size currentSize;
Point currentOfs;
currentSample.at(j).locateROI(currentSize, currentOfs);
bool foreground = false;
if (mode == MODE_POSITIVE || mode == MODE_ESTIMATON)
{
foreground = true;
}
else if (mode == MODE_NEGATIVE)
{
foreground = false;
}
//get the column of the HAAR responses
Mat singleResponse = responses.at(i).col(j);
//create the state
Ptr<TrackerStateEstimatorMILBoosting::TrackerMILTargetState> currentState = Ptr<TrackerStateEstimatorMILBoosting::TrackerMILTargetState>(
new TrackerStateEstimatorMILBoosting::TrackerMILTargetState(currentOfs, width, height, foreground, singleResponse));
confidenceMap.push_back(std::make_pair(currentState, 0.0f));
}
}
}
void TrackerMILModel::modelEstimationImpl(const std::vector<Mat>& responses)
{
responseToConfidenceMap(responses, currentConfidenceMap);
}
void TrackerMILModel::modelUpdateImpl()
{
}
void TrackerMILModel::setMode(int trainingMode, const std::vector<Mat>& samples)
{
currentSample.clear();
currentSample = samples;
mode = trainingMode;
}
}}} // namespace cv::tracking::impl