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_CLHOGDETECTOR_H__ |
| 25 | #define __ARM_COMPUTE_CLHOGDETECTOR_H__ |
| 26 | |
| 27 | #include "arm_compute/core/CL/OpenCL.h" |
| 28 | #include "arm_compute/core/CL/kernels/CLHOGDetectorKernel.h" |
| 29 | #include "arm_compute/core/IHOG.h" |
| 30 | #include "arm_compute/runtime/IFunction.h" |
| 31 | |
| 32 | namespace arm_compute |
| 33 | { |
| 34 | /** Basic function to execute HOG detector based on linear SVM. This function calls the following OpenCL kernel: |
| 35 | * |
| 36 | * -# @ref CLHOGDetectorKernel |
| 37 | * |
| 38 | */ |
| 39 | class CLHOGDetector : public IFunction |
| 40 | { |
| 41 | public: |
| 42 | /** Default constructor */ |
| 43 | CLHOGDetector(); |
| 44 | /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| 45 | CLHOGDetector(const CLHOGDetector &) = delete; |
| 46 | /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| 47 | CLHOGDetector &operator=(const CLHOGDetector &) = delete; |
| 48 | /** Allow instances of this class to be moved */ |
| 49 | CLHOGDetector(CLHOGDetector &&) = default; |
| 50 | /** Allow instances of this class to be moved */ |
| 51 | CLHOGDetector &operator=(CLHOGDetector &&) = default; |
| 52 | /** Default destructor */ |
| 53 | ~CLHOGDetector() = default; |
| 54 | /** Initialise the kernel's input, output, HOG data object, detection window stride, threshold and index class |
| 55 | * |
| 56 | * @attention The function does not reset the number of values in @ref IDetectionWindowArray so it is caller's responsibility to clear it. |
| 57 | * |
Giorgio Arena | 3972528 | 2017-12-12 15:04:43 +0000 | [diff] [blame] | 58 | * @param[in] input Input tensor. It is the output of @ref CLHOGDescriptor. Data type supported: F32 |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 59 | * @param[in] hog HOG data-object that describes the HOG descriptor |
| 60 | * @param[out] detection_windows Array of @ref DetectionWindow used to store the detected objects |
| 61 | * @param[in] detection_window_stride Distance in pixels between 2 consecutive detection windows in x and y directions. |
| 62 | * It must be multiple of the block stride stored in hog |
| 63 | * @param[in] threshold (Optional) Threshold for the distance between features and SVM classifying plane |
| 64 | * @param[in] idx_class (Optional) Index of the class used for evaluating which class the detection window belongs to |
| 65 | */ |
| 66 | void configure(const ICLTensor *input, const ICLHOG *hog, ICLDetectionWindowArray *detection_windows, const Size2D &detection_window_stride, float threshold = 0.0f, size_t idx_class = 0); |
| 67 | |
| 68 | // Inherited methods overridden: |
| 69 | void run() override; |
| 70 | |
| 71 | private: |
| 72 | CLHOGDetectorKernel _hog_detector_kernel; |
| 73 | ICLDetectionWindowArray *_detection_windows; |
| 74 | cl::Buffer _num_detection_windows; |
| 75 | }; |
| 76 | } |
| 77 | |
| 78 | #endif /* __ARM_COMPUTE_CLHOGDETECTOR_H__ */ |