1 /* 2 * Copyright (c) 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_NONMAXIMUMSUPPRESSION_LAYER_H 25 #define ARM_COMPUTE_CPP_NONMAXIMUMSUPPRESSION_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 perform non maximum suppression on the bounding boxes and scores 36 * 37 */ 38 class CPPNonMaximumSuppression : public ICPPSimpleFunction 39 { 40 public: 41 /** Configure the function to perform non maximal suppression 42 * 43 * @param[in] bboxes The input bounding boxes. Data types supported: F32. 44 * @param[in] scores The corresponding input confidence. Same as @p bboxes. 45 * @param[out] indices The kept indices of bboxes after nms. Data types supported: S32. 46 * @param[in] max_output_size An integer tensor representing the maximum number of boxes to be selected by non max suppression. 47 * @param[in] score_threshold The threshold used to filter detection results. 48 * @param[in] nms_threshold The threshold used in non maximum suppression. 49 * 50 */ 51 void configure(const ITensor *bboxes, const ITensor *scores, ITensor *indices, unsigned int max_output_size, const float score_threshold, const float nms_threshold); 52 53 /** Static function to check if given arguments will lead to a valid configuration of @ref CPPNonMaximumSuppression 54 * 55 * @param[in] bboxes The input bounding boxes tensor info. Data types supported: F32. 56 * @param[in] scores The corresponding input confidence tensor info. Same as @p bboxes. 57 * @param[out] indices The kept indices of bboxes after nms tensor info. Data types supported: S32. 58 * @param[in] max_output_size An integer tensor representing the maximum number of boxes to be selected by non max suppression. 59 * @param[in] score_threshold The threshold used to filter detection results. 60 * @param[in] nms_threshold The threshold used in non maximum suppression. 61 * 62 */ 63 static Status validate(const ITensorInfo *bboxes, const ITensorInfo *scores, const ITensorInfo *indices, unsigned int max_output_size, 64 const float score_threshold, const float nms_threshold); 65 }; 66 } // namespace arm_compute 67 #endif /* ARM_COMPUTE_CPP_NONMAXIMUMSUPPRESSION_LAYER_H */ 68