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Diffstat (limited to 'src/core/CL/kernels/CLHOGDetectorKernel.h')
| -rw-r--r-- | src/core/CL/kernels/CLHOGDetectorKernel.h | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/src/core/CL/kernels/CLHOGDetectorKernel.h b/src/core/CL/kernels/CLHOGDetectorKernel.h new file mode 100644 index 0000000000..c28e6ebe74 --- /dev/null +++ b/src/core/CL/kernels/CLHOGDetectorKernel.h @@ -0,0 +1,96 @@ +/* + * Copyright (c) 2017-2020 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_CLHOGDETECTORKERNEL_H +#define ARM_COMPUTE_CLHOGDETECTORKERNEL_H + +#include "arm_compute/core/CL/ICLArray.h" +#include "arm_compute/core/CL/ICLHOG.h" +#include "arm_compute/core/CL/OpenCL.h" +#include "src/core/CL/ICLKernel.h" + +namespace cl +{ +class Buffer; +} + +namespace arm_compute +{ +class ICLTensor; + +/** OpenCL kernel to perform HOG detector kernel using linear SVM */ +class CLHOGDetectorKernel : public ICLKernel +{ +public: + /** Default constructor */ + CLHOGDetectorKernel(); + /** Prevent instances of this class from being copied (As this class contains pointers) */ + CLHOGDetectorKernel(const CLHOGDetectorKernel &) = delete; + /** Prevent instances of this class from being copied (As this class contains pointers) */ + CLHOGDetectorKernel &operator=(const CLHOGDetectorKernel &) = delete; + /** Allow instances of this class to be moved */ + CLHOGDetectorKernel(CLHOGDetectorKernel &&) = default; + /** Allow instances of this class to be moved */ + CLHOGDetectorKernel &operator=(CLHOGDetectorKernel &&) = default; + /** Default destructor */ + ~CLHOGDetectorKernel() = default; + + /** Initialise the kernel's input, HOG data-object, detection window, the stride of the detection window, the threshold and index of the object to detect + * + * @param[in] input Input tensor which stores the HOG descriptor obtained with @ref CLHOGOrientationBinningKernel. Data type supported: F32. Number of channels supported: equal to the number of histogram bins per block + * @param[in] hog HOG data object used by @ref CLHOGOrientationBinningKernel and @ref CLHOGBlockNormalizationKernel + * @param[out] detection_windows Array of @ref DetectionWindow. This array stores all the detected objects + * @param[in] num_detection_windows Number of 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 hog->info()->block_stride() + * @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, cl::Buffer *num_detection_windows, const Size2D &detection_window_stride, float threshold = 0.0f, + uint16_t idx_class = 0); + /** Initialise the kernel's input, HOG data-object, detection window, the stride of the detection window, the threshold and index of the object to detect + * + * @param[in] compile_context The compile context to be used. + * @param[in] input Input tensor which stores the HOG descriptor obtained with @ref CLHOGOrientationBinningKernel. Data type supported: F32. Number of channels supported: equal to the number of histogram bins per block + * @param[in] hog HOG data object used by @ref CLHOGOrientationBinningKernel and @ref CLHOGBlockNormalizationKernel + * @param[out] detection_windows Array of @ref DetectionWindow. This array stores all the detected objects + * @param[in] num_detection_windows Number of 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 hog->info()->block_stride() + * @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 CLCompileContext &compile_context, const ICLTensor *input, const ICLHOG *hog, ICLDetectionWindowArray *detection_windows, cl::Buffer *num_detection_windows, + const Size2D &detection_window_stride, float threshold = 0.0f, + uint16_t idx_class = 0); + + // Inherited methods overridden: + void run(const Window &window, cl::CommandQueue &queue); + +private: + const ICLTensor *_input; + ICLDetectionWindowArray *_detection_windows; + cl::Buffer *_num_detection_windows; +}; +} // namespace arm_compute +#endif /* ARM_COMPUTE_CLHOGDETECTORKERNEL_H */ |