1 /* 2 * Copyright (c) 2017-2020 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_CPPDETECTIONWINDOWNONMAXIMASUPPRESSIONKERNEL_H 25 #define ARM_COMPUTE_CPPDETECTIONWINDOWNONMAXIMASUPPRESSIONKERNEL_H 26 27 #include "arm_compute/core/CPP/ICPPKernel.h" 28 #include "arm_compute/core/IArray.h" 29 #include "arm_compute/core/IHOG.h" 30 #include "arm_compute/core/Types.h" 31 32 namespace arm_compute 33 { 34 /** CPP kernel to perform in-place computation of euclidean distance on IDetectionWindowArray 35 * 36 * @note This kernel is meant to be used alongside HOG or other object detection algorithms to perform a non-maxima suppression on a 37 * IDetectionWindowArray 38 */ 39 class CPPDetectionWindowNonMaximaSuppressionKernel : public ICPPKernel 40 { 41 public: name()42 const char *name() const override 43 { 44 return "CPPDetectionWindowNonMaximaSuppressionKernel"; 45 } 46 /** Default constructor */ 47 CPPDetectionWindowNonMaximaSuppressionKernel(); 48 /** Prevent instances of this class from being copied (As this class contains pointers) */ 49 CPPDetectionWindowNonMaximaSuppressionKernel(const CPPDetectionWindowNonMaximaSuppressionKernel &) = delete; 50 /** Prevent instances of this class from being copied (As this class contains pointers) */ 51 CPPDetectionWindowNonMaximaSuppressionKernel &operator=(const CPPDetectionWindowNonMaximaSuppressionKernel &) = delete; 52 /** Allow instances of this class to be moved */ 53 CPPDetectionWindowNonMaximaSuppressionKernel(CPPDetectionWindowNonMaximaSuppressionKernel &&) = default; 54 /** Allow instances of this class to be moved */ 55 CPPDetectionWindowNonMaximaSuppressionKernel &operator=(CPPDetectionWindowNonMaximaSuppressionKernel &&) = default; 56 /** Default destructor */ 57 ~CPPDetectionWindowNonMaximaSuppressionKernel() = default; 58 /** Initialise the kernel's input, output and the euclidean minimum distance 59 * 60 * @attention: If @ref IDetectionWindowArray is passed to the kernel, the map() and unmap() methods @ref IDetectionWindowArray must be called respectively before and after 61 * the run() method of @ref CPPDetectionWindowNonMaximaSuppressionKernel 62 * 63 * @param[in, out] input_output Input/Output array of @ref DetectionWindow 64 * @param[in] min_distance Radial Euclidean distance for non-maxima suppression 65 */ 66 void configure(IDetectionWindowArray *input_output, float min_distance); 67 68 // Inherited methods overridden: 69 void run(const Window &window, const ThreadInfo &info) override; 70 bool is_parallelisable() const override; 71 72 private: 73 IDetectionWindowArray *_input_output; 74 float _min_distance; 75 }; 76 } // namespace arm_compute 77 #endif /* ARM_COMPUTE_CPPDETECTIONWINDOWNONMAXIMASUPPRESSIONKERNEL_H */ 78