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55 lines
2.2 KiB
55 lines
2.2 KiB
/* Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License. */
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#pragma once
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#include <string>
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#include "paddle/fluid/framework/op_registry.h"
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#include "paddle/fluid/operators/detection/bbox_util.h"
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#include "paddle/fluid/operators/math/math_function.h"
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namespace paddle {
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namespace operators {
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using Tensor = framework::Tensor;
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using LoDTensor = framework::LoDTensor;
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template <typename DeviceContext, typename T>
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class BoxClipKernel : public framework::OpKernel<T> {
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public:
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void Compute(const framework::ExecutionContext& context) const override {
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auto* input_box = context.Input<LoDTensor>("Input");
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auto* im_info = context.Input<LoDTensor>("ImInfo");
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auto* output_box = context.Output<LoDTensor>("Output");
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auto& dev_ctx =
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context.template device_context<platform::CPUDeviceContext>();
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output_box->mutable_data<T>(context.GetPlace());
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if (input_box->lod().size()) {
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PADDLE_ENFORCE_EQ(input_box->lod().size(), 1UL,
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platform::errors::InvalidArgument(
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"Input(Input) of BoxClip only supports 1 level "
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"of LoD. But received the "
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"level = %d",
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input_box->lod().size()));
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}
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auto box_lod = input_box->lod().back();
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int64_t n = static_cast<int64_t>(box_lod.size() - 1);
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for (int i = 0; i < n; ++i) {
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Tensor im_info_slice = im_info->Slice(i, i + 1);
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Tensor box_slice = input_box->Slice(box_lod[i], box_lod[i + 1]);
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Tensor output_slice = output_box->Slice(box_lod[i], box_lod[i + 1]);
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ClipTiledBoxes<T>(dev_ctx, im_info_slice, box_slice, &output_slice);
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}
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}
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};
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} // namespace operators
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} // namespace paddle
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