auto matched = manager->update

[wafaer]

In the "auto matched = manager->update" 'update' reported such an error: In template: chosen constructor is explicit in copy-initialization error occurred here in instantiation of member function 'TrackerManagerDeepSORT::TrackData::update' requested here explicit constructor declared here in implicit initialization of field 'mask_gpu' with omitted initializer in implicit initialization of field 'info' with omitted initializer. May I ask how to solve it?

#include

#include "DeepSORT.h" #include "Extractor.h" #include "TrackerManager.h"

using namespace std; using namespace cv;

namespace { float iou(const Rect2f &bb_test, const Rect2f &bb_gt) { auto in = (bb_test & bb_gt).area(); auto un = bb_test.area() + bb_gt.area() - in;

    if (un < DBL_EPSILON)
        return 0;

    return in / un;
}

}

torch::Tensor iou_dist(const vector<Rect2f> &dets, const vector<Rect2f> &trks) { auto trk_num = trks.size(); auto det_num = dets.size(); auto dist = torch::empty({int64_t(trk_num), int64_t(det_num)}); for (size_t i = 0; i < trk_num; i++) // compute iou matrix as a distance matrix { for (size_t j = 0; j < det_num; j++) { dist[i][j] = 1 - iou(trks[i], dets[j]); } } return dist; }

DeepSORT::DeepSORT(const array<int64_t, 2> &dim) : extractor(make_unique<Extractor>()), manager(make_unique<TrackerManager<TrackData>>(data, dim)), feat_metric(make_unique<FeatureMetric<TrackData>>(data)) {

}

vector<InstInfo> DeepSORT::update(const std::vector<InstInfo> &detections, cv::Mat ori_img) { manager->predict(); manager->remove_nan();

sgLogger->debug("start manager->update()");

auto matched = manager->update(
        detections,
        [this, &detections, &ori_img](const std::vector<int> &trk_ids, const std::vector<int> &det_ids) {
            vector<cv::Rect2f> trks;
            for (auto t : trk_ids) {
                trks.push_back(data[t].kalman.rect());
            }
            vector<cv::Mat> boxes;
            vector<cv::Rect2f> dets;
            for (auto d:det_ids) {
                dets.push_back(detections[d].rect);
                boxes.push_back(ori_img(detections[d].rect));
            }

            auto iou_mat = iou_dist(dets, trks);
            auto feat_mat = feat_metric->distance(extractor->extract(boxes), trk_ids);

            //cout<<"feat_mat:"<<endl;
            //cout<<feat_mat<<endl;

            feat_mat.masked_fill_((iou_mat > 0.8f).__ior__(feat_mat > 0.2f), INVALID_DIST);
            return feat_mat;
        },
        [this, &detections](const std::vector<int> &trk_ids, const std::vector<int> &det_ids) {
            vector<cv::Rect2f> trks;
            for (auto t : trk_ids) {
                trks.push_back(data[t].kalman.rect());
            }
            vector<cv::Rect2f> dets;
            for (auto &d:det_ids) {
                dets.push_back(detections[d].rect);
            }
            auto iou_mat = iou_dist(dets, trks);
            iou_mat.masked_fill_(iou_mat > 0.7f, INVALID_DIST);
            return iou_mat;
        });

vector<cv::Mat> boxes;
vector<int> targets;
for (auto[x, y]:matched) {
    targets.emplace_back(x);
    boxes.emplace_back(ori_img(detections[y].rect));
}

//sgLogger->debug("start feat_metric->update()");

feat_metric->update(extractor->extract(boxes), targets);

manager->remove_deleted();

//return manager->visible_tracks();
return manager->visible_tracks_info();

}

[chenjianqu]

Sorry, the previous code introduced unnecessary dependencies (opencv-cuda), which are now removed.