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Diffstat (limited to 'src/core/NEON/kernels/NEHOGDetectorKernel.h')
-rw-r--r-- | src/core/NEON/kernels/NEHOGDetectorKernel.h | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/src/core/NEON/kernels/NEHOGDetectorKernel.h b/src/core/NEON/kernels/NEHOGDetectorKernel.h new file mode 100644 index 0000000000..45c28099c8 --- /dev/null +++ b/src/core/NEON/kernels/NEHOGDetectorKernel.h @@ -0,0 +1,89 @@ +/* + * Copyright (c) 2016-2020 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_NEHOGDETECTORKERNEL_H +#define ARM_COMPUTE_NEHOGDETECTORKERNEL_H + +#include "arm_compute/core/IArray.h" +#include "arm_compute/core/IHOG.h" +#include "src/core/NEON/INEKernel.h" +#include "support/Mutex.h" + +namespace arm_compute +{ +class ITensor; + +/** NEON kernel to perform HOG detector kernel using linear SVM */ +class NEHOGDetectorKernel : public INEKernel +{ +public: + const char *name() const override + { + return "NEHOGDetectorKernel"; + } + /** Default constructor */ + NEHOGDetectorKernel(); + /** Prevent instances of this class from being copied (As this class contains pointers) */ + NEHOGDetectorKernel(const NEHOGDetectorKernel &) = delete; + /** Prevent instances of this class from being copied (As this class contains pointers) */ + NEHOGDetectorKernel &operator=(const NEHOGDetectorKernel &) = delete; + /** Prevent instances of this class from being moved (As this class contains non movable objects) */ + NEHOGDetectorKernel(NEHOGDetectorKernel &&) = delete; + /** Prevent instances of this class from being moved (As this class contains non movable objects) */ + NEHOGDetectorKernel &operator=(NEHOGDetectorKernel &&) = delete; + /** Default destructor */ + ~NEHOGDetectorKernel() = 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 NEHOGOrientationBinningKernel. 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 NEHOGOrientationBinningKernel and @ref NEHOGBlockNormalizationKernel + * @param[out] detection_windows Array of @ref DetectionWindow. This array stores all 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 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 ITensor *input, const IHOG *hog, IDetectionWindowArray *detection_windows, const Size2D &detection_window_stride, float threshold = 0.0f, uint16_t idx_class = 0); + + // Inherited methods overridden: + void run(const Window &window, const ThreadInfo &info) override; + +private: + const ITensor *_input; + IDetectionWindowArray *_detection_windows; + const float *_hog_descriptor; + float _bias; + float _threshold; + uint16_t _idx_class; + size_t _num_bins_per_descriptor_x; + size_t _num_blocks_per_descriptor_y; + size_t _block_stride_width; + size_t _block_stride_height; + size_t _detection_window_width; + size_t _detection_window_height; + size_t _max_num_detection_windows; + arm_compute::Mutex _mutex; +}; +} // namespace arm_compute +#endif /* ARM_COMPUTE_NEHOGDETECTORKERNEL_H */ |