65 lines
2.2 KiB
Python
65 lines
2.2 KiB
Python
"""B04 지면 필터 오케스트레이션.
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구조화된 포인트클라우드(structured.npz)에 대해 grid_min_z/csf/pmf/ransac
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필터를 실행하여 지면 마스크 딕셔너리를 만든다. 필터 선택은 config의
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source_filters를 따른다.
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"""
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from typing import Any
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import numpy as np
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from B04_wf1_Surface.B04_wf1_Surface_Engine_Filter_CSF import filter_csf
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from B04_wf1_Surface.B04_wf1_Surface_Engine_Filter_Grid import filter_grid_min_z
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from B04_wf1_Surface.B04_wf1_Surface_Engine_Filter_PMF import filter_pmf
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from B04_wf1_Surface.B04_wf1_Surface_Engine_Filter_RANSAC import filter_ransac
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# 필터 키 → 함수 매핑
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_FILTERS = {
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"grid_min_z": filter_grid_min_z,
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"csf": filter_csf,
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"pmf": filter_pmf,
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"ransac": filter_ransac,
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}
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def available_filters() -> tuple[str, ...]:
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return tuple(_FILTERS.keys())
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def run_ground_filter(
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filter_key: str, structured_data: dict[str, Any] | np.lib.npyio.NpzFile
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) -> np.ndarray:
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"""단일 지면 필터를 실행해 불리언 마스크를 반환한다."""
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if filter_key not in _FILTERS:
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raise ValueError(f"알 수 없는 지면 필터입니다: {filter_key}")
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return np.asarray(_FILTERS[filter_key](structured_data), dtype=bool)
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def build_ground_masks(
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structured_data: dict[str, Any] | np.lib.npyio.NpzFile,
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filter_keys: tuple[str, ...] | list[str],
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) -> dict[str, np.ndarray]:
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"""지정한 필터들을 실행해 {filter_key: mask} 딕셔너리를 만든다."""
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masks: dict[str, np.ndarray] = {}
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for filter_key in filter_keys:
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masks[filter_key] = run_ground_filter(filter_key, structured_data)
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return masks
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def summarize_masks(
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structured_data: dict[str, Any] | np.lib.npyio.NpzFile,
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masks: dict[str, np.ndarray],
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) -> dict[str, dict[str, Any]]:
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"""각 필터 마스크의 지면 포인트 수·비율 요약을 만든다."""
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total = int(len(structured_data["xyz"]))
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summary: dict[str, dict[str, Any]] = {}
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for filter_key, mask in masks.items():
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ground = int(np.count_nonzero(mask))
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summary[filter_key] = {
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"ground_point_count": ground,
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"total_point_count": total,
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"ground_ratio": round(ground / total, 4) if total else 0.0,
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}
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return summary
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