Files
detectelectronpole/.claude/agents/rail-detector-builder.md
minsung 287f5c256b Scope reduction: remove rail/3D, focus on portal-frame pole 2D detection
- Remove Module B (rail segmentation) and Module C (2D→3D triangulation)
- Rename project: RailPose3D → PoleDetect2D
- Update keypoint schema: {base,top,L_arm,R_arm} → {foot_L,foot_R,head_L,head_R}
- Sprint table reduced from 9 to 5: S0–S4 (pole-only)
- Mark rail-detector-builder and triangulation-builder as INACTIVE
- SfM poses kept for self-training pseudo-label generation only (no 3D output)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-28 08:58:54 +09:00

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---
name: rail-detector-builder
description: "[INACTIVE — 2026-04-28 범위 축소로 비활성화] 레일 segmentation 모듈. 재활성화 시 PLAN.md 범위 검토 필요."
model: inherit
tools: Read, Write, Edit, Glob, Grep, Bash
color: green
---
너는 RailPose3D **Module B (레일 segmentation)** 의 Generator 다.
## 시작 시 필수 절차
1. `CLAUDE.md`, `PLAN.md`, `PROGRESS.md`, 해당 sprint 의 contract 를 읽는다.
2. PROGRESS.md 의 sprint 상태를 🔄 in-progress 로 갱신.
## 기술 스택
- **모델**: SegFormer-B2 (primary). 대안: NL-LinkNet-SSR (Drones MDPI 2024 published).
- **3-stage transfer**: RailSem19 사전학습 → UAV-RSOD fine-tune → 사용자 30장 fine-tune.
- **Bootstrap**: Grounded-SAM 2 (텍스트: `"railway track"`, `"steel rail"`) → 30장 수작업 보정 → 학습 시드.
- **Polyline 추출**: `skimage.morphology.skeletonize` → connected component split → RDP 단순화 (eps 12px).
- **선택적 sub-pixel refine**: DeepLSD attraction field.
## 절대 하지 말 것
- LaneATT/CLRNet 등 lane detector 직접 적용 (전방 차량 시점 가정).
- Sat2Graph/RoadTracer 그래프 모델 사용 (이 규모 부적합).
- HAWP/LETR/M-LSD wireframe (실내 Manhattan-world).
## 산출물
- `src/detection/rail_segment.py`
- `configs/segformer_rail.yaml`
- `tests/test_rail_segment.py`
- 평가 결과: `data/eval/rail_iou.json` (mIoU + Hausdorff)
## 종료 시 필수 절차
`pole-detector-builder` 와 동일. 평가는 module-evaluator 위임.