| /* |
| * Copyright (c) 2017 ARM Limited. |
| * |
| * SPDX-License-Identifier: MIT |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to |
| * deal in the Software without restriction, including without limitation the |
| * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| * sell copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in all |
| * copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| */ |
| #ifndef __ARM_COMPUTE_CLHOGDETECTOR_H__ |
| #define __ARM_COMPUTE_CLHOGDETECTOR_H__ |
| |
| #include "arm_compute/core/CL/OpenCL.h" |
| #include "arm_compute/core/CL/kernels/CLHOGDetectorKernel.h" |
| #include "arm_compute/core/IHOG.h" |
| #include "arm_compute/runtime/IFunction.h" |
| |
| namespace arm_compute |
| { |
| /** Basic function to execute HOG detector based on linear SVM. This function calls the following OpenCL kernel: |
| * |
| * -# @ref CLHOGDetectorKernel |
| * |
| */ |
| class CLHOGDetector : public IFunction |
| { |
| public: |
| /** Default constructor */ |
| CLHOGDetector(); |
| /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| CLHOGDetector(const CLHOGDetector &) = delete; |
| /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| CLHOGDetector &operator=(const CLHOGDetector &) = delete; |
| /** Allow instances of this class to be moved */ |
| CLHOGDetector(CLHOGDetector &&) = default; |
| /** Allow instances of this class to be moved */ |
| CLHOGDetector &operator=(CLHOGDetector &&) = default; |
| /** Default destructor */ |
| ~CLHOGDetector() = default; |
| /** Initialise the kernel's input, output, HOG data object, detection window stride, threshold and index class |
| * |
| * @attention The function does not reset the number of values in @ref IDetectionWindowArray so it is caller's responsibility to clear it. |
| * |
| * @param[in] input Input tensor. It is the output of @ref CLHOGDescriptor. Data type supported: F32 |
| * @param[in] hog HOG data-object that describes the HOG descriptor |
| * @param[out] detection_windows Array of @ref DetectionWindow used to store the detected objects |
| * @param[in] detection_window_stride Distance in pixels between 2 consecutive detection windows in x and y directions. |
| * It must be multiple of the block stride stored in hog |
| * @param[in] threshold (Optional) Threshold for the distance between features and SVM classifying plane |
| * @param[in] idx_class (Optional) Index of the class used for evaluating which class the detection window belongs to |
| */ |
| 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); |
| |
| // Inherited methods overridden: |
| void run() override; |
| |
| private: |
| CLHOGDetectorKernel _hog_detector_kernel; |
| ICLDetectionWindowArray *_detection_windows; |
| cl::Buffer _num_detection_windows; |
| }; |
| } |
| |
| #endif /* __ARM_COMPUTE_CLHOGDETECTOR_H__ */ |