From 6ff3b19ee6120edf015fad8caab2991faa3070af Mon Sep 17 00:00:00 2001 From: Anthony Barbier Date: Mon, 4 Sep 2017 18:44:23 +0100 Subject: COMPMID-344 Updated doxygen Change-Id: I32f7b84daa560e460b77216add529c8fa8b327ae --- .../core/NEON/kernels/NEHarrisCornersKernel.h | 126 +++++++++++++++++++++ 1 file changed, 126 insertions(+) create mode 100644 arm_compute/core/NEON/kernels/NEHarrisCornersKernel.h (limited to 'arm_compute/core/NEON/kernels/NEHarrisCornersKernel.h') diff --git a/arm_compute/core/NEON/kernels/NEHarrisCornersKernel.h b/arm_compute/core/NEON/kernels/NEHarrisCornersKernel.h new file mode 100644 index 0000000000..0abd73ef97 --- /dev/null +++ b/arm_compute/core/NEON/kernels/NEHarrisCornersKernel.h @@ -0,0 +1,126 @@ +/* + * Copyright (c) 2016, 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_NEHARRISCORNERSKERNEL_H__ +#define __ARM_COMPUTE_NEHARRISCORNERSKERNEL_H__ + +#include "arm_compute/core/CPP/kernels/CPPCornerCandidatesKernel.h" +#include "arm_compute/core/CPP/kernels/CPPSortEuclideanDistanceKernel.h" +#include "arm_compute/core/IArray.h" +#include "arm_compute/core/NEON/INEKernel.h" + +#include +#include + +namespace arm_compute +{ +class ITensor; +using IImage = ITensor; + +/** Common interface for all Harris Score kernels */ +class INEHarrisScoreKernel : public INEKernel +{ +public: + /** Default constructor */ + INEHarrisScoreKernel(); + /** Prevent instances of this class from being copied (As this class contains pointers) */ + INEHarrisScoreKernel(const INEHarrisScoreKernel &) = delete; + /** Prevent instances of this class from being copied (As this class contains pointers) */ + INEHarrisScoreKernel &operator=(const INEHarrisScoreKernel &) = delete; + /** Allow instances of this class to be moved */ + INEHarrisScoreKernel(INEHarrisScoreKernel &&) = default; + /** Allow instances of this class to be moved */ + INEHarrisScoreKernel &operator=(INEHarrisScoreKernel &&) = default; + /** Default destructor */ + ~INEHarrisScoreKernel() = default; + +public: + /** Setup the kernel parameters + * + * @param[in] input1 Source image (gradient X). Data types supported: S16/S32 + * @param[in] input2 Source image (gradient Y). Data types supported: same as @ input1 + * @param[out] output Destination image (harris score). Data types supported: F32 + * @param[in] norm_factor Normalization factor to use accordingly with the gradient size (Must be different from 0) + * @param[in] strength_thresh Minimum threshold with which to eliminate Harris Corner scores (computed using the normalized Sobel kernel). + * @param[in] sensitivity Sensitivity threshold k from the Harris-Stephens equation + * @param[in] border_undefined True if the border mode is undefined. False if it's replicate or constant. + */ + virtual void configure(const IImage *input1, const IImage *input2, IImage *output, float norm_factor, float strength_thresh, float sensitivity, bool border_undefined) = 0; + +protected: + const IImage *_input1; /**< Source image - Gx component */ + const IImage *_input2; /**< Source image - Gy component */ + IImage *_output; /**< Source image - Harris score */ + float _sensitivity; /**< Sensitivity value */ + float _strength_thresh; /**< Threshold value */ + float _norm_factor; /**< Normalization factor */ + BorderSize _border_size; /**< Border size */ +}; + +/** Template NEON kernel to perform Harris Score. + * The implementation supports 3, 5, and 7 for the block_size + */ +template +class NEHarrisScoreKernel : public INEHarrisScoreKernel +{ +public: + /** Default constructor */ + NEHarrisScoreKernel(); + // Inherited methods overridden: + void configure(const IImage *input1, const IImage *input2, IImage *output, float norm_factor, float strength_thresh, float sensitivity, bool border_undefined) override; + BorderSize border_size() const override; + void run(const Window &window) override; + +private: + /** Common signature for all the specialised harris score functions */ + using HarrisScoreFunction = void(const void *__restrict input1_ptr, const void *__restrict input2_ptr, void *__restrict output_ptr, int32_t input_stride, + float norm_factor, float sensitivity, float strength_thresh); + /** Harris Score function to use for the particular image types passed to configure() */ + HarrisScoreFunction *_func; +}; + +#ifdef ARM_COMPUTE_ENABLE_FP16 +/** Interface for the accumulate Weighted kernel using F16 */ +template +class NEHarrisScoreFP16Kernel : public INEHarrisScoreKernel +{ +public: + /** Default constructor */ + NEHarrisScoreFP16Kernel(); + // Inherited methods overridden: + void configure(const IImage *input1, const IImage *input2, IImage *output, float norm_factor, float strength_thresh, float sensitivity, bool border_undefined) override; + BorderSize border_size() const override; + void run(const Window &window) override; + +private: + using HarrisScoreFunction = void(const void *__restrict input1_ptr, const void *__restrict input2_ptr, void *__restrict output_ptr, int32_t input_stride, + float norm_factor, float sensitivity, float strength_thresh); + /** Harris Score function to use for the particular image types passed to configure() */ + HarrisScoreFunction *_func; +}; +#else +template +using NEHarrisScoreFP16Kernel = NEHarrisScoreKernel; +#endif +} +#endif /* __ARM_COMPUTE_NEHARRISCORNERSKERNEL_H__ */ -- cgit v1.2.1