Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2017 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_CLHOGMULTIDETECTION_H__ |
| 25 | #define __ARM_COMPUTE_CLHOGMULTIDETECTION_H__ |
| 26 | |
| 27 | #include "arm_compute/core/CL/ICLArray.h" |
| 28 | #include "arm_compute/core/CL/ICLMultiHOG.h" |
| 29 | #include "arm_compute/core/CL/kernels/CLHOGDescriptorKernel.h" |
| 30 | #include "arm_compute/core/CPP/kernels/CPPDetectionWindowNonMaximaSuppressionKernel.h" |
Georgios Pinitas | 8a94e7c | 2017-09-15 19:06:47 +0100 | [diff] [blame] | 31 | #include "arm_compute/runtime/CL/CLMemoryGroup.h" |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 32 | #include "arm_compute/runtime/CL/CLTensor.h" |
| 33 | #include "arm_compute/runtime/CL/functions/CLHOGDetector.h" |
| 34 | #include "arm_compute/runtime/CL/functions/CLHOGGradient.h" |
| 35 | #include "arm_compute/runtime/IFunction.h" |
Georgios Pinitas | 8a94e7c | 2017-09-15 19:06:47 +0100 | [diff] [blame] | 36 | #include "arm_compute/runtime/IMemoryManager.h" |
| 37 | |
| 38 | #include <memory> |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 39 | |
| 40 | namespace arm_compute |
| 41 | { |
| 42 | /** Basic function to detect multiple objects (or the same object at different scales) on the same input image using HOG. This function calls the following kernels: |
| 43 | * |
| 44 | * -# @ref CLHOGGradient |
| 45 | * -# @ref CLHOGOrientationBinningKernel |
| 46 | * -# @ref CLHOGBlockNormalizationKernel |
| 47 | * -# @ref CLHOGDetector |
| 48 | * -# @ref CPPDetectionWindowNonMaximaSuppressionKernel (executed if non_maxima_suppression == true) |
| 49 | * |
| 50 | * @note This implementation works if all the HOG data-objects within the IMultiHOG container have the same: |
| 51 | * -# Phase type |
| 52 | -# Normalization type |
| 53 | -# L2 hysteresis threshold if the normalization type is L2HYS_NORM |
| 54 | * |
| 55 | */ |
| 56 | class CLHOGMultiDetection : public IFunction |
| 57 | { |
| 58 | public: |
| 59 | /** Default constructor */ |
Georgios Pinitas | 8a94e7c | 2017-09-15 19:06:47 +0100 | [diff] [blame] | 60 | CLHOGMultiDetection(std::shared_ptr<IMemoryManager> memory_manager = nullptr); |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 61 | /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| 62 | CLHOGMultiDetection(const CLHOGMultiDetection &) = delete; |
| 63 | /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| 64 | CLHOGMultiDetection &operator=(const CLHOGMultiDetection &) = delete; |
| 65 | /** Initialise the function's source, destination, detection window strides, border mode, threshold and non-maxima suppression |
| 66 | * |
| 67 | * @param[in, out] input Input tensor. Data type supported: U8 |
| 68 | * (Written to only for @p border_mode != UNDEFINED) |
| 69 | * @param[in] multi_hog Container of multiple HOG data object. Each HOG data object describes one HOG model to detect. |
| 70 | * This container should store the HOG data-objects in descending or ascending cell_size width order. |
| 71 | * This will help to understand if the HOG descriptor computation can be skipped for some HOG data-objects |
| 72 | * @param[out] detection_windows Array of @ref DetectionWindow used for locating the detected objects |
| 73 | * @param[in] detection_window_strides Array of @ref Size2D used to specify the distance in pixels between 2 consecutive detection windows in x and y directions for each HOG data-object |
| 74 | * The dimension of this array must be the same of multi_hog->num_models() |
| 75 | * The i-th detection_window_stride of this array must be multiple of the block_stride stored in the i-th multi_hog array |
| 76 | * @param[in] border_mode Border mode to use. |
| 77 | * @param[in] constant_border_value (Optional) Constant value to use for borders if border_mode is set to CONSTANT. |
| 78 | * @param[in] threshold (Optional) Threshold for the distance between features and SVM classifying plane |
| 79 | * @param[in] non_maxima_suppression (Optional) Flag to specify whether the non-maxima suppression is required or not. |
| 80 | * True if the non-maxima suppression stage has to be computed |
| 81 | * @param[in] min_distance (Optional) Radial Euclidean distance to use for the non-maxima suppression stage |
| 82 | * |
| 83 | */ |
| 84 | void configure(ICLTensor *input, const ICLMultiHOG *multi_hog, ICLDetectionWindowArray *detection_windows, ICLSize2DArray *detection_window_strides, BorderMode border_mode, |
| 85 | uint8_t constant_border_value = 0, |
| 86 | float threshold = 0.0f, bool non_maxima_suppression = false, float min_distance = 1.0f); |
| 87 | |
| 88 | // Inherited method overridden: |
| 89 | void run() override; |
| 90 | |
| 91 | private: |
Georgios Pinitas | 8a94e7c | 2017-09-15 19:06:47 +0100 | [diff] [blame] | 92 | CLMemoryGroup _memory_group; |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 93 | CLHOGGradient _gradient_kernel; |
| 94 | std::unique_ptr<CLHOGOrientationBinningKernel[]> _orient_bin_kernel; |
| 95 | std::unique_ptr<CLHOGBlockNormalizationKernel[]> _block_norm_kernel; |
| 96 | std::unique_ptr<CLHOGDetector[]> _hog_detect_kernel; |
| 97 | std::unique_ptr<CPPDetectionWindowNonMaximaSuppressionKernel> _non_maxima_kernel; |
| 98 | std::unique_ptr<CLTensor[]> _hog_space; |
| 99 | std::unique_ptr<CLTensor[]> _hog_norm_space; |
| 100 | ICLDetectionWindowArray *_detection_windows; |
| 101 | CLTensor _mag; |
| 102 | CLTensor _phase; |
| 103 | bool _non_maxima_suppression; |
| 104 | size_t _num_orient_bin_kernel; |
| 105 | size_t _num_block_norm_kernel; |
| 106 | size_t _num_hog_detect_kernel; |
| 107 | }; |
| 108 | } |
| 109 | |
| 110 | #endif /* __ARM_COMPUTE_CLHOGMULTIDETECTION_H__ */ |