48 lines
1.8 KiB
C++
48 lines
1.8 KiB
C++
// Copyright 2019 The MediaPipe Authors.
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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// Quantization model to convert a real value float number (flow field) to a
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// 8-bit discrete number.
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#ifndef MEDIAPIPE_CALCULATORS_VIDEO_TOOL_FLOW_QUANTIZER_MODEL_H_
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#define MEDIAPIPE_CALCULATORS_VIDEO_TOOL_FLOW_QUANTIZER_MODEL_H_
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#include "mediapipe/calculators/video/tool/flow_quantizer_model.pb.h"
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#include "mediapipe/framework/formats/motion/optical_flow_field.h"
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#include "mediapipe/framework/port/integral_types.h"
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#include "mediapipe/framework/tool/status_util.h"
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namespace mediapipe {
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class FlowQuantizerModel {
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public:
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// Initializes the model proto.
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void Init();
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// Quantizes flow field with the model.
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uint8 Apply(const float val, const int channel) const;
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// Loads model from proto.
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void LoadFromProto(const QuantizerModelData& data);
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// Gets proto from model.
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const QuantizerModelData& GetModelData() const;
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// Used in training. Updates the model proto by reading the flow fields.
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// TODO: This model is currently manually set. Need to find a way to
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// learn from flow fields directly.
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void AddSampleFlowField(const OpticalFlowField& flow);
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private:
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QuantizerModelData model_;
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};
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} // namespace mediapipe
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#endif // MEDIAPIPE_CALCULATORS_VIDEO_TOOL_FLOW_QUANTIZER_MODEL_H_
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