1 // Tencent is pleased to support the open source community by making ncnn available.
2 //
3 // Copyright (C) 2018 THL A29 Limited, a Tencent company. All rights reserved.
4 //
5 // Licensed under the BSD 3-Clause License (the "License"); you may not use this file except
6 // in compliance with the License. You may obtain a copy of the License at
7 //
8 // https://opensource.org/licenses/BSD-3-Clause
9 //
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13 // specific language governing permissions and limitations under the License.
14 
15 #ifndef LAYER_YOLOV3DETECTIONOUTPUT_H
16 #define LAYER_YOLOV3DETECTIONOUTPUT_H
17 
18 #include "layer.h"
19 
20 namespace ncnn {
21 
22 class Yolov3DetectionOutput : public Layer
23 {
24 public:
25     Yolov3DetectionOutput();
26     ~Yolov3DetectionOutput();
27 
28     virtual int load_param(const ParamDict& pd);
29 
30     virtual int forward(const std::vector<Mat>& bottom_blobs, std::vector<Mat>& top_blobs, const Option& opt) const;
31 
32 public:
33     int num_class;
34     int num_box;
35     float confidence_threshold;
36     float nms_threshold;
37     Mat biases;
38     Mat mask;
39     Mat anchors_scale;
40     int mask_group_num;
41     ncnn::Layer* softmax;
42 
43 public:
44     struct BBoxRect
45     {
46         float score;
47         float xmin;
48         float ymin;
49         float xmax;
50         float ymax;
51         float area;
52         int label;
53     };
54 
55     void qsort_descent_inplace(std::vector<BBoxRect>& datas, int left, int right) const;
56     void qsort_descent_inplace(std::vector<BBoxRect>& datas) const;
57     void nms_sorted_bboxes(std::vector<BBoxRect>& bboxes, std::vector<size_t>& picked, float nms_threshold) const;
58 };
59 
60 } // namespace ncnn
61 
62 #endif // LAYER_YOLODETECTIONOUTPUT_H
63