1 /* 2 * Copyright (c) 2018-2019 Arm Limited. 3 * 4 * SPDX-License-Identifier: MIT 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a copy 7 * of this software and associated documentation files (the "Software"), to 8 * deal in the Software without restriction, including without limitation the 9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 10 * sell copies of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in all 14 * copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 22 * SOFTWARE. 23 */ 24 #ifndef ARM_COMPUTE_CPP_DETECTION_OUTPUT_LAYER_H 25 #define ARM_COMPUTE_CPP_DETECTION_OUTPUT_LAYER_H 26 27 #include "arm_compute/runtime/CPP/ICPPSimpleFunction.h" 28 29 #include "arm_compute/core/Types.h" 30 31 namespace arm_compute 32 { 33 class ITensor; 34 35 /** CPP Function to generate the detection output based on location and confidence 36 * predictions by doing non maximum suppression. 37 * 38 * @note Intended for use with MultiBox detection method. 39 */ 40 class CPPDetectionOutputLayer : public IFunction 41 { 42 public: 43 /** Default constructor */ 44 CPPDetectionOutputLayer(); 45 /** Configure the detection output layer CPP kernel 46 * 47 * @param[in] input_loc The mbox location input tensor of size [C1, N]. Data types supported: F32. 48 * @param[in] input_conf The mbox confidence input tensor of size [C2, N]. Data types supported: F32. 49 * @param[in] input_priorbox The mbox prior box input tensor of size [C3, 2, N]. Data types supported: F32. 50 * @param[out] output The output tensor of size [7, M]. Data types supported: Same as @p input 51 * @param[in] info (Optional) DetectionOutputLayerInfo information. 52 * 53 * @note Output contains all the detections. Of those, only the ones selected by the valid region are valid. 54 */ 55 void configure(const ITensor *input_loc, const ITensor *input_conf, const ITensor *input_priorbox, ITensor *output, DetectionOutputLayerInfo info = DetectionOutputLayerInfo()); 56 /** Static function to check if given info will lead to a valid configuration of @ref CPPDetectionOutputLayer 57 * 58 * @param[in] input_loc The mbox location input tensor info. Data types supported: F32. 59 * @param[in] input_conf The mbox confidence input tensor info. Data types supported: F32. 60 * @param[in] input_priorbox The mbox prior box input tensor info. Data types supported: F32. 61 * @param[in] output The output tensor info. Data types supported: Same as @p input 62 * @param[in] info (Optional) DetectionOutputLayerInfo information. 63 * 64 * @return a status 65 */ 66 static Status validate(const ITensorInfo *input_loc, const ITensorInfo *input_conf, const ITensorInfo *input_priorbox, const ITensorInfo *output, 67 DetectionOutputLayerInfo info = DetectionOutputLayerInfo()); 68 // Inherited methods overridden: 69 void run() override; 70 /** Prevent instances of this class from being copied (As this class contains pointers) */ 71 CPPDetectionOutputLayer(const CPPDetectionOutputLayer &) = delete; 72 /** Prevent instances of this class from being copied (As this class contains pointers) */ 73 CPPDetectionOutputLayer &operator=(const CPPDetectionOutputLayer &) = delete; 74 75 private: 76 const ITensor *_input_loc; 77 const ITensor *_input_conf; 78 const ITensor *_input_priorbox; 79 ITensor *_output; 80 DetectionOutputLayerInfo _info; 81 82 int _num_priors; 83 int _num; 84 85 std::vector<LabelBBox> _all_location_predictions; 86 std::vector<std::map<int, std::vector<float>>> _all_confidence_scores; 87 std::vector<BBox> _all_prior_bboxes; 88 std::vector<std::array<float, 4>> _all_prior_variances; 89 std::vector<LabelBBox> _all_decode_bboxes; 90 std::vector<std::map<int, std::vector<int>>> _all_indices; 91 }; 92 } // namespace arm_compute 93 #endif /* ARM_COMPUTE_CPP_DETECTION_OUTPUT_LAYER_H */ 94