76 lines
2.7 KiB
C++
76 lines
2.7 KiB
C++
/****************************************************************************
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*
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* Copyright (c) 2020-2023 Vivante Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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*****************************************************************************/
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#ifndef TIM_VX_OPS_SPATIAL_TRANSFORMER_H_
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#define TIM_VX_OPS_SPATIAL_TRANSFORMER_H_
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#include "tim/vx/builtin_op.h"
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namespace tim {
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namespace vx {
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namespace ops {
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/**
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* ## Spatial Transformer
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*
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* 'Spatial Transformer Networks', Jaderberg et. al,
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* (https://arxiv.org/abs/1506.02025)
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*
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* - theta : Affine transform tensor of shape (B, 6). Permits cropping,
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translation and isotropic scaling. Initialize to identity matrix.
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It is the output of the localization network.
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*/
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class SpatialTransformer : public BuiltinOp {
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public:
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SpatialTransformer(Graph* graph, uint32_t output_h, uint32_t output_w,
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bool has_theta_1_1, bool has_theta_1_2, bool has_theta_1_3,
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bool has_theta_2_1, bool has_theta_2_2, bool has_theta_2_3,
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float theta_1_1, float theta_1_2, float theta_1_3,
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float theta_2_1, float theta_2_2, float theta_2_3, bool align_corners = false);
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std::shared_ptr<Operation> Clone(std::shared_ptr<Graph>& graph) const override;
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protected:
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const uint32_t output_h_;
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const uint32_t output_w_;
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bool has_theta_1_1_;
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bool has_theta_1_2_;
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bool has_theta_1_3_;
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bool has_theta_2_1_;
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bool has_theta_2_2_;
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bool has_theta_2_3_;
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float theta_1_1_;
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float theta_1_2_;
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float theta_1_3_;
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float theta_2_1_;
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float theta_2_2_;
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float theta_2_3_;
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bool align_corners_;
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};
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} // namespace ops
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} // namespace vx
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} // namespace tim
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#endif /* TIM_VX_OPS_SPATIAL_TRANSFORMER_H_ */
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