78 lines
2.6 KiB
C++
78 lines
2.6 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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#include "mediapipe/calculators/util/association_calculator.h"
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#include "mediapipe/framework/calculator_context.h"
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#include "mediapipe/framework/calculator_framework.h"
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#include "mediapipe/framework/formats/detection.pb.h"
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#include "mediapipe/framework/formats/location.h"
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#include "mediapipe/framework/port/rectangle.h"
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#include "mediapipe/framework/port/status.h"
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namespace mediapipe {
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// A subclass of AssociationCalculator<T> for Detection. Example:
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// node {
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// calculator: "AssociationDetectionCalculator"
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// input_stream: "PREV:input_vec_0"
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// input_stream: "input_vec_1"
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// input_stream: "input_vec_2"
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// output_stream: "output_vec"
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// options {
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// [mediapipe.AssociationCalculatorOptions.ext] {
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// min_similarity_threshold: 0.1
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// }
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// }
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class AssociationDetectionCalculator
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: public AssociationCalculator<::mediapipe::Detection> {
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public:
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static absl::Status GetContract(CalculatorContract* cc) {
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return AssociationCalculator<::mediapipe::Detection>::GetContract(cc);
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}
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absl::Status Open(CalculatorContext* cc) override {
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return AssociationCalculator<::mediapipe::Detection>::Open(cc);
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}
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absl::Status Process(CalculatorContext* cc) override {
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return AssociationCalculator<::mediapipe::Detection>::Process(cc);
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}
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absl::Status Close(CalculatorContext* cc) override {
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return AssociationCalculator<::mediapipe::Detection>::Close(cc);
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}
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protected:
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absl::StatusOr<Rectangle_f> GetRectangle(
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const ::mediapipe::Detection& input) override {
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if (!input.has_location_data()) {
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return absl::InternalError("Missing location_data in Detection");
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}
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const Location location(input.location_data());
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return location.GetRelativeBBox();
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}
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std::pair<bool, int> GetId(const ::mediapipe::Detection& input) override {
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return {input.has_detection_id(), input.detection_id()};
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}
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void SetId(::mediapipe::Detection* input, int id) override {
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input->set_detection_id(id);
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}
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};
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REGISTER_CALCULATOR(AssociationDetectionCalculator);
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} // namespace mediapipe
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