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| | | #if defined(TRACK_OPTFLOW) && defined(OPENCV) |
| | | #if defined(TRACK_OPTFLOW) && defined(OPENCV) && defined(GPU) |
| | | |
| | | #include <opencv2/cudaoptflow.hpp> |
| | | #include <opencv2/cudaimgproc.hpp> |
| | |
| | | void update_cur_bbox_vec(std::vector<bbox_t> _cur_bbox_vec) |
| | | { |
| | | cur_bbox_vec = _cur_bbox_vec; |
| | | good_bbox_vec_flags.resize(cur_bbox_vec.size()); |
| | | for (auto &i : good_bbox_vec_flags) i = true; |
| | | good_bbox_vec_flags = std::vector<bool>(cur_bbox_vec.size(), true); |
| | | cv::Mat prev_pts, cur_pts_flow_cpu; |
| | | |
| | | for (auto &i : cur_bbox_vec) { |
| | |
| | | float moved_y = cur_key_pt.y - prev_key_pt.y; |
| | | |
| | | if (abs(moved_x) < 100 && abs(moved_y) < 100 && good_bbox_vec_flags[i]) |
| | | if (err_cpu.at<float>(0, i) < flow_error && status_cpu.at<unsigned char>(0, i) != 0) |
| | | if (err_cpu.at<float>(0, i) < flow_error && status_cpu.at<unsigned char>(0, i) != 0 && |
| | | ((float)cur_bbox_vec[i].x + moved_x) > 0 && ((float)cur_bbox_vec[i].y + moved_y) > 0) |
| | | { |
| | | cur_bbox_vec[i].x += moved_x + 0.5; |
| | | cur_bbox_vec[i].y += moved_y + 0.5; |
| | |
| | | } |
| | | |
| | | }; |
| | | |
| | | #elif defined(TRACK_OPTFLOW) && defined(OPENCV) |
| | | |
| | | #include <opencv2/optflow.hpp> |
| | | |
| | | class Tracker_optflow { |
| | | public: |
| | | const int flow_error; |
| | | |
| | | |
| | | Tracker_optflow(int win_size = 9, int max_level = 3, int iterations = 8000, int _flow_error = -1) : |
| | | flow_error((_flow_error > 0)? _flow_error:(win_size*4)) |
| | | { |
| | | sync_PyrLKOpticalFlow = cv::SparsePyrLKOpticalFlow::create(); |
| | | sync_PyrLKOpticalFlow->setWinSize(cv::Size(win_size, win_size)); // 9, 15, 21, 31 |
| | | sync_PyrLKOpticalFlow->setMaxLevel(max_level); // +- 3 pt |
| | | |
| | | } |
| | | |
| | | // just to avoid extra allocations |
| | | cv::Mat src_mat; |
| | | cv::Mat dst_mat, dst_grey; |
| | | cv::Mat prev_pts_flow, cur_pts_flow; |
| | | cv::Mat status, err; |
| | | |
| | | cv::Mat src_grey; // used in both functions |
| | | cv::Ptr<cv::SparsePyrLKOpticalFlow> sync_PyrLKOpticalFlow; |
| | | |
| | | std::vector<bbox_t> cur_bbox_vec; |
| | | std::vector<bool> good_bbox_vec_flags; |
| | | |
| | | void update_cur_bbox_vec(std::vector<bbox_t> _cur_bbox_vec) |
| | | { |
| | | cur_bbox_vec = _cur_bbox_vec; |
| | | good_bbox_vec_flags = std::vector<bool>(cur_bbox_vec.size(), true); |
| | | cv::Mat prev_pts, cur_pts_flow; |
| | | |
| | | for (auto &i : cur_bbox_vec) { |
| | | float x_center = (i.x + i.w / 2.0F); |
| | | float y_center = (i.y + i.h / 2.0F); |
| | | prev_pts.push_back(cv::Point2f(x_center, y_center)); |
| | | } |
| | | |
| | | if (prev_pts.rows == 0) |
| | | prev_pts_flow = cv::Mat(); |
| | | else |
| | | cv::transpose(prev_pts, prev_pts_flow); |
| | | } |
| | | |
| | | |
| | | void update_tracking_flow(cv::Mat new_src_mat, std::vector<bbox_t> _cur_bbox_vec) |
| | | { |
| | | if (new_src_mat.channels() == 3) { |
| | | if (src_mat.cols == 0) { |
| | | src_mat = cv::Mat(new_src_mat.size(), new_src_mat.type()); |
| | | src_grey = cv::Mat(new_src_mat.size(), CV_8UC1); |
| | | } |
| | | |
| | | update_cur_bbox_vec(_cur_bbox_vec); |
| | | |
| | | src_mat = new_src_mat; |
| | | cv::cvtColor(src_mat, src_grey, CV_BGR2GRAY, 1); |
| | | } |
| | | } |
| | | |
| | | |
| | | std::vector<bbox_t> tracking_flow(cv::Mat new_dst_mat, bool check_error = true) |
| | | { |
| | | if (sync_PyrLKOpticalFlow.empty()) { |
| | | std::cout << "sync_PyrLKOpticalFlow isn't initialized \n"; |
| | | return cur_bbox_vec; |
| | | } |
| | | |
| | | if (dst_mat.cols == 0) { |
| | | dst_mat = cv::Mat(new_dst_mat.size(), new_dst_mat.type()); |
| | | dst_grey = cv::Mat(new_dst_mat.size(), CV_8UC1); |
| | | } |
| | | |
| | | dst_mat = new_dst_mat; |
| | | cv::cvtColor(dst_mat, dst_grey, CV_BGR2GRAY, 1); |
| | | |
| | | if (src_grey.rows != dst_grey.rows || src_grey.cols != dst_grey.cols) { |
| | | src_grey = dst_grey.clone(); |
| | | return cur_bbox_vec; |
| | | } |
| | | |
| | | ////sync_PyrLKOpticalFlow_gpu.sparse(src_grey_gpu, dst_grey_gpu, prev_pts_flow_gpu, cur_pts_flow_gpu, status_gpu, &err_gpu); // OpenCV 2.4.x |
| | | sync_PyrLKOpticalFlow->calc(src_grey, dst_grey, prev_pts_flow, cur_pts_flow, status, err); // OpenCV 3.x |
| | | |
| | | dst_grey.copyTo(src_grey); |
| | | |
| | | std::vector<bbox_t> result_bbox_vec; |
| | | |
| | | if (err.cols == cur_bbox_vec.size() && status.cols == cur_bbox_vec.size()) |
| | | { |
| | | for (size_t i = 0; i < cur_bbox_vec.size(); ++i) |
| | | { |
| | | cv::Point2f cur_key_pt = cur_pts_flow.at<cv::Point2f>(0, i); |
| | | cv::Point2f prev_key_pt = prev_pts_flow.at<cv::Point2f>(0, i); |
| | | |
| | | float moved_x = cur_key_pt.x - prev_key_pt.x; |
| | | float moved_y = cur_key_pt.y - prev_key_pt.y; |
| | | |
| | | if (abs(moved_x) < 100 && abs(moved_y) < 100 && good_bbox_vec_flags[i]) |
| | | if (err.at<float>(0, i) < flow_error && status.at<unsigned char>(0, i) != 0 && |
| | | ((float)cur_bbox_vec[i].x + moved_x) > 0 && ((float)cur_bbox_vec[i].y + moved_y) > 0) |
| | | { |
| | | cur_bbox_vec[i].x += moved_x + 0.5; |
| | | cur_bbox_vec[i].y += moved_y + 0.5; |
| | | result_bbox_vec.push_back(cur_bbox_vec[i]); |
| | | } |
| | | else good_bbox_vec_flags[i] = false; |
| | | else good_bbox_vec_flags[i] = false; |
| | | |
| | | //if(!check_error && !good_bbox_vec_flags[i]) result_bbox_vec.push_back(cur_bbox_vec[i]); |
| | | } |
| | | } |
| | | |
| | | prev_pts_flow = cur_pts_flow; |
| | | |
| | | return result_bbox_vec; |
| | | } |
| | | |
| | | }; |
| | | #else |
| | | |
| | | class Tracker_optflow {}; |