dtourolle
d753062c6c
Source (KPN++ pipeline nodes, ArcFace embedders, SCRFD/YuNet detectors, gallery builder), build scripts, and eval artifacts. - external/KPN as a git submodule (gitea.tourolle.paris/dtourolle/KPN) - ONNX models tracked via Git LFS (models/*.onnx) - generated outputs, TensorRT engines, reference repos, and media ignored
62 lines
2.3 KiB
C++
62 lines
2.3 KiB
C++
#pragma once
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#include "scrfd_decoder.hpp"
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#include "trt_scrfd_decoder.hpp"
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#include "config.hpp"
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#include "ort_provider.hpp"
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#include <memory>
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#include <string>
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// ── FaceDetectorFunc ──────────────────────────────────────────────────────────
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// KPN node: runs SCRFD-500MF to detect ALL faces in a frame.
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//
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// Backend selection:
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// --detector-engine <path> → TrtScrfdDecoder (raw TensorRT, no ORT)
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// otherwise → SCRFDDecoder (ONNX Runtime)
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struct FaceDetectorFunc {
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static constexpr std::string_view label() { return "face_detector"; }
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explicit FaceDetectorFunc(const Config& cfg, OrtProvider provider)
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: max_faces_(cfg.max_faces)
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, min_face_px_(cfg.min_face_px)
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{
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if (!cfg.detector_engine.empty()) {
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trt_ = std::make_unique<TrtScrfdDecoder>(
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cfg.detector_engine, cfg.detector_conf, cfg.detector_nms);
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} else {
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ort_ = std::make_unique<SCRFDDecoder>(
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cfg.detector_model, cfg.detector_conf, cfg.detector_nms, provider, cfg.trt);
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}
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}
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SceneFrame operator()(Frame f) {
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if (f.eof) return {std::move(f), {}};
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auto faces = trt_ ? trt_->detect(f.image) : ort_->detect(f.image);
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// Drop faces below minimum pixel size (too small for reliable ArcFace alignment)
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faces.erase(
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std::remove_if(faces.begin(), faces.end(), [&](const DetectedFace& d) {
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return d.bbox.width < min_face_px_ || d.bbox.height < min_face_px_;
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}),
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faces.end());
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// Sort largest-first so max_faces_ keeps the most informative detections
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std::sort(faces.begin(), faces.end(),
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[](const DetectedFace& a, const DetectedFace& b) {
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return a.bbox.area() > b.bbox.area();
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});
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if (static_cast<int>(faces.size()) > max_faces_)
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faces.resize(max_faces_);
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return {std::move(f), std::move(faces)};
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}
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private:
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std::unique_ptr<SCRFDDecoder> ort_;
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std::unique_ptr<TrtScrfdDecoder> trt_;
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int max_faces_{10};
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float min_face_px_{40.f};
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};
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