1 /* 2 * Copyright (c) 2018-2020 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_CPPBOXWITHNONMAXIMASUPPRESSIONLIMITKERNEL_H 25 #define ARM_COMPUTE_CPPBOXWITHNONMAXIMASUPPRESSIONLIMITKERNEL_H 26 27 #include "arm_compute/core/CPP/ICPPKernel.h" 28 #include "arm_compute/core/Types.h" 29 30 namespace arm_compute 31 { 32 class ITensor; 33 34 /** CPP kernel to perform computation of BoxWithNonMaximaSuppressionLimit */ 35 class CPPBoxWithNonMaximaSuppressionLimitKernel : public ICPPKernel 36 { 37 public: name()38 const char *name() const override 39 { 40 return "CPPBoxWithNonMaximaSuppressionLimitKernel"; 41 } 42 /** Default constructor */ 43 CPPBoxWithNonMaximaSuppressionLimitKernel(); 44 /** Prevent instances of this class from being copied (As this class contains pointers) */ 45 CPPBoxWithNonMaximaSuppressionLimitKernel(const CPPBoxWithNonMaximaSuppressionLimitKernel &) = delete; 46 /** Prevent instances of this class from being copied (As this class contains pointers) */ 47 CPPBoxWithNonMaximaSuppressionLimitKernel &operator=(const CPPBoxWithNonMaximaSuppressionLimitKernel &) = delete; 48 /** Allow instances of this class to be moved */ 49 CPPBoxWithNonMaximaSuppressionLimitKernel(CPPBoxWithNonMaximaSuppressionLimitKernel &&) = default; 50 /** Allow instances of this class to be moved */ 51 CPPBoxWithNonMaximaSuppressionLimitKernel &operator=(CPPBoxWithNonMaximaSuppressionLimitKernel &&) = default; 52 /** Initialise the kernel's input and output tensors. 53 * 54 * @param[in] scores_in The scores input tensor of size [num_classes, count]. Data types supported: F16/F32 55 * @param[in] boxes_in The boxes input tensor of size [num_classes * 4, count]. Data types supported: Same as @p scores_in 56 * @param[in] batch_splits_in The batch splits input tensor of size [batch_size]. Data types supported: Same as @p scores_in 57 * @note Can be a nullptr. If not a nullptr, @p scores_in and @p boxes_in have items from multiple images. 58 * @param[out] scores_out The scores output tensor of size [N]. Data types supported: Same as @p scores_in 59 * @param[out] boxes_out The boxes output tensor of size [4, N]. Data types supported: Same as @p scores_in 60 * @param[out] classes The classes output tensor of size [N]. Data types supported: Same as @p scores_in 61 * @param[out] batch_splits_out (Optional) The batch splits output tensor [batch_size]. Data types supported: Same as @p scores_in 62 * @param[out] keeps (Optional) The keeps output tensor of size [N]. Data types supported: Same as@p scores_in 63 * @param[out] keeps_size (Optional) Number of filtered indices per class tensor of size [num_classes]. Data types supported: U32 64 * @param[in] info (Optional) BoxNMSLimitInfo information. 65 */ 66 void configure(const ITensor *scores_in, const ITensor *boxes_in, const ITensor *batch_splits_in, ITensor *scores_out, ITensor *boxes_out, ITensor *classes, 67 ITensor *batch_splits_out = nullptr, ITensor *keeps = nullptr, ITensor *keeps_size = nullptr, const BoxNMSLimitInfo info = BoxNMSLimitInfo()); 68 69 // Inherited methods overridden: 70 void run(const Window &window, const ThreadInfo &info) override; 71 bool is_parallelisable() const override; 72 73 template <typename T> 74 void run_nmslimit(); 75 76 private: 77 const ITensor *_scores_in; 78 const ITensor *_boxes_in; 79 const ITensor *_batch_splits_in; 80 ITensor *_scores_out; 81 ITensor *_boxes_out; 82 ITensor *_classes; 83 ITensor *_batch_splits_out; 84 ITensor *_keeps; 85 ITensor *_keeps_size; 86 BoxNMSLimitInfo _info; 87 }; 88 } // namespace arm_compute 89 #endif /* ARM_COMPUTE_CPPBOXWITHNONMAXIMASUPPRESSIONLIMITKERNEL_H */ 90