ssd.h
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//
// Created by DefTruth on 2021/6/5.
//
#ifndef LITE_AI_ORT_CV_SSD_H
#define LITE_AI_ORT_CV_SSD_H
#include "lite/ort/core/ort_core.h"
namespace ortcv
{
class LITE_EXPORTS SSD : public BasicOrtHandler
{
public:
explicit SSD(const std::string &_onnx_path, unsigned int _num_threads = 1) :
BasicOrtHandler(_onnx_path, _num_threads)
{};
~SSD() override = default;
private:
const float mean_vals[3] = {0.485f, 0.456f, 0.406f};
const float scale_vals[3] = {1.f / 0.229f, 1.f / 0.224f, 1.f / 0.225f};
const char *class_names[80] = {
"person", "bicycle", "car", "motorcycle", "airplane", "bus", "train", "truck", "boat", "traffic light",
"fire hydrant", "stop sign", "parking meter", "bench", "bird", "cat", "dog", "horse", "sheep", "cow",
"elephant", "bear", "zebra", "giraffe", "backpack", "umbrella", "handbag", "tie", "suitcase", "frisbee",
"skis", "snowboard", "sports ball", "kite", "baseball bat", "baseball glove", "skateboard", "surfboard",
"tennis racket", "bottle", "wine glass", "cup", "fork", "knife", "spoon", "bowl", "banana", "apple",
"sandwich", "orange", "broccoli", "carrot", "hot dog", "pizza", "donut", "cake", "chair", "couch",
"potted plant", "bed", "dining table", "toilet", "tv", "laptop", "mouse", "remote", "keyboard",
"cell phone", "microwave", "oven", "toaster", "sink", "refrigerator", "book", "clock", "vase",
"scissors", "teddy bear", "hair drier", "toothbrush"
};
enum NMS
{
HARD = 0, BLEND = 1, OFFSET = 2
};
static constexpr const unsigned int max_nms = 30000;
private:
Ort::Value transform(const cv::Mat &mat) override; //
void generate_bboxes(std::vector<types::Boxf> &bbox_collection,
std::vector<Ort::Value> &output_tensors,
float score_threshold, float img_height,
float img_width); // rescale & exclude
void nms(std::vector<types::Boxf> &input, std::vector<types::Boxf> &output,
float iou_threshold, unsigned int topk, unsigned int nms_type);
public:
void detect(const cv::Mat &mat, std::vector<types::Boxf> &detected_boxes,
float score_threshold = 0.25f, float iou_threshold = 0.45f,
unsigned int topk = 100, unsigned int nms_type = NMS::OFFSET);
};
}
#endif //LITE_AI_ORT_CV_SSD_H