feat(report): deterministic vision provider and 32-dimension diagnosis assembly
dimensions.py 逐行编码需求文档 §4（32 项四要素、缺失显式 skipped）+ VisionProvider 接口位与确定性实现 + 规则引擎联动 rule_hits（T-P3-01/06）。 实现： - dimensions.py：DimensionSpec 恰 32 项（number 1~32 连续，33/34 永不复用）， basic_coverage 口径机器可读：full 10 / label 3 / partial 8 / none 11， 初级覆盖 21/32（BASIC_FULL_KEYS + BASIC_COVERED_KEYS）。 - vision.py：VisionProvider Protocol（派生特征形状写进 docstring，真实 RTMPose/BiRefNet 实现后续按此替换）+ DeterministicVisionProvider（问卷 BMI/自评驱动体型与肤色，sha256(object_key+canonical问卷) 驱动其余枚举， 同输入同输出）+ build_vision_provider（未知名 CONFIG_ERROR）。 - vision_stage.py：derived_features 已存在 → skipped/reused（T-P3-09）； 否则分析 → 写中间态并 flush；photo_meta.quality_flags 透传进产物（T-P3-01）。 - diagnosis_stage.py：32 维恒全键，缺输入显式 skipped+原因（T-P3-06 红线）； 每维四要素 value/confidence/source/evidence/rule_hits + status；构造 RuleContext → RuleService 载入 published 规则 → evaluate，body_shape/color 类命中回落 #5/#19/#21，全量命中聚合进 #28/#30 的 rule_hits 与 evidence； 色板 #19/#20/#21 从 kb_color 按季型读取，库空 → skipped「色板未录入」。 测试：单测 29 项（32 项完整性/编号连续/确定性/工厂拒绝未知名；四要素齐全 性——故意缺问卷+缺视觉断言 32 键全在且全部 skipped 带原因；规则命中进 rule_hits 用内置最小规则集不连库）；集成 1 项（种 2 条 published 规则 → VisionStage → DiagnosisStage：中间态落库与复用 skipped/reused、32 维全键、 rule_hits 出现、kb_color 空时色板 skipped、coverage basic_full=10/32）。 全绿：ruff check/format、mypy packages/report、lint-imports；单测 536 通过 （3 处既有 skip）、集成 46 通过。 偏差说明： 1. 任务文档写 RulesService，实际类名为 RuleService（packages/rules/service.py），按实际代码调用。 2. kb_color 联表键采用四季代码 spring/summer/autumn/winter（仓库无既定口径），已在 vision.py 注释声明。 3. 任务文档只给 basic_coverage 四枚举，需求表格中的「粗判/8色/3色」归入 partial、「Top1」归入 label。
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"""视觉分析提供者：接口位 + V1 确定性（mock）实现。
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**接口位**（T9 SPIKE 之后的正式契约）：真实 RTMPose/BiRefNet/Lab 采样实现后续
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按 ``VisionProvider`` Protocol 替换，流水线与其余阶段不感知差别。
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**为什么 mock 要确定性**：黄金集与集成测试必须能对同一输入断言同一输出；
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概率性 mock 会让"偶现失败"混进 CI。因此 ``DeterministicVisionProvider``
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不读照片字节（V1 骨架没有照片下载步骤），只从 ``questionnaire`` +
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``photo_meta["object_key"]`` 的 sha256 派生特征——同输入恒同输出。
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派生特征的形状（所有键即诊断维度键，两个例外见下）::
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{
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"body_shape": "A" | "O" | "X" | "T" | "H", # 梨/苹果/沙漏/倒三角/矩形
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"body_features": ["溜肩", ...], # 多标签，可为空列表
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"body_ratio": float, # 上下身比例（0.58~0.68）
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"face_shape": "鹅蛋" | "圆" | "方" | "长" | "心形" | "菱形" | "梨形",
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"face_proportions": "均匀" | "上庭偏长" | "中庭偏长" | "下庭偏长",
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"facial_details": {"眉形": ..., "眼型": ..., "双眼皮": ..., "鼻型": ..., "唇形": ...},
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"face_depth": float, # 面部立体度 0~10
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"skin_lab": {"l": float, "a": float, "b": float}, # 中间量，不是维度键
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"skin_tone": "粉一白" | ... | "黄黑皮", # 六档
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"face_hue": {"value": float, "label": str}, # -1 冷 ←→ 1 暖
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"face_lightness": {"value": float, "label": str}, # -1 暗沉 ←→ 1 白皙
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"face_chroma": {"value": float, "label": str}, # -1 柔和 ←→ 1 鲜艳
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"face_contrast": "低" | "适中" | "高",
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"season_code": "spring" | "summer" | "autumn" | "winter",
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"season_detailed": "浅春" | ... | "深冬", # 十二季
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"volume": {"label": "小" | "中" | "大", "score": int},
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"curve_straight": {"label": "偏曲" | "适中" | "偏直", "score": float},
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"motion": "动态型" | "动静适中" | "静态型",
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"gene_style_scores": {"戏剧": int, ...}, # 9 型评分；例外键：维度键为 gene_style
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"hair_status": {"length": "短" | "中" | "长", "curl": "直" | "微卷" | "大卷"},
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"hair_color": {"hex": "#RRGGBB", "tone": "冷" | "暖"},
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}
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"""
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from __future__ import annotations
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import hashlib
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import json
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from collections.abc import Mapping
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from typing import Any, Protocol, runtime_checkable
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from packages.report.dimensions import DIMENSION_BY_KEY
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from packages.shared.config import Settings
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from packages.shared.errors import AppError, ErrorCode
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#: 体型五型（需求文档 §4 #5 取值范围；字母码与表格一致）。
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BODY_SHAPES: tuple[str, ...] = ("A", "O", "X", "T", "H")
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#: 脸型七型（需求文档 §4 #8）。
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FACE_SHAPES: tuple[str, ...] = ("鹅蛋", "圆", "方", "长", "心形", "菱形", "梨形")
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#: 肤色六档（需求文档 §4 #12）。
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SKIN_TONES: tuple[str, ...] = ("粉一白", "粉二白", "粉三白", "黄一白", "黄二白", "黄黑皮")
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#: 四季季型代码。kb_color.season_code 必须用同一套代码（色板维度的联表键）。
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SEASON_CODES: tuple[str, ...] = ("spring", "summer", "autumn", "winter")
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SEASON_CODE_CN: Mapping[str, str] = {
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"spring": "春",
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"summer": "夏",
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"autumn": "秋",
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"winter": "冬",
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}
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#: 基因/心理风格九型（需求文档 §4 #25/#26）。
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STYLE_TYPES: tuple[str, ...] = (
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"戏剧",
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"睿智",
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"自然",
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"古典",
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"优雅",
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"浪漫",
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"前卫",
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"少女",
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"少年",
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)
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#: 派生特征键 → 诊断维度键的例外映射（其余键与维度键同名）。
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#: skin_lab 是色彩算法的中间量，不对应任何维度。
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FEATURE_TO_DIMENSION: Mapping[str, str] = {"gene_style_scores": "gene_style"}
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def dimensions_touched(features: Mapping[str, Any]) -> list[str]:
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"""派生特征覆盖到的诊断维度键（vision 阶段产物的 dimensions_touched）。"""
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touched: list[str] = []
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for key in features:
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dim = FEATURE_TO_DIMENSION.get(key, key)
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if dim in DIMENSION_BY_KEY and dim not in touched:
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touched.append(dim)
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return touched
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@runtime_checkable
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class VisionProvider(Protocol):
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"""视觉分析 SPI：照片元信息 + 问卷 → 派生特征 dict（形状见模块 docstring）。
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实现必须**确定性**（同输入同输出），否则黄金集断言与失败重放都不成立。
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"""
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async def analyze(
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self, photo_meta: dict[str, Any], questionnaire: dict[str, Any]
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) -> dict[str, Any]: ...
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def _seed(object_key: str, questionnaire: Mapping[str, Any], salt: str) -> bytes:
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"""确定性种子：canonical JSON 保证 dict 键序无关，salt 分组隔离特征域。"""
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canonical = json.dumps(questionnaire, sort_keys=True, ensure_ascii=False, separators=(",", ":"))
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return hashlib.sha256(f"{object_key}|{canonical}|{salt}".encode()).digest()
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def _num(value: Any) -> float | None:
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"""问卷数值字段的宽容读取：bool 不是数值（是 int 子类，须显式排除）。"""
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if isinstance(value, bool) or not isinstance(value, (int, float)):
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return None
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return float(value)
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def _bmi(questionnaire: Mapping[str, Any]) -> float | None:
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height = _num(questionnaire.get("height"))
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weight = _num(questionnaire.get("weight"))
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if height is None or weight is None or height <= 0:
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return None
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return weight / (height / 100.0) ** 2
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def _pick(digest: bytes, index: int, options: tuple[str, ...]) -> str:
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return options[digest[index] % len(options)]
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class DeterministicVisionProvider:
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"""V1 骨架的确定性假实现：真实视觉模型的占位（报告链路先跑通、可回归）。
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派生规则（全部可复算，这里就是"模型"本身）：
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- **问卷驱动**：
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- 身高/体重 → BMI：``<18.5`` → A/H 二选一；``18.5~24`` → X/H/T 三选一；
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``24~28`` → O/T 二选一；``≥28`` → O。缺失时按哈希在五型里均匀选。
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- 问卷自评（§3.6 降级路径的 body_shape_self / face_shape_self /
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skin_tone_self）**优先于哈希**——自评是真实信号，mock 噪声不该盖过它；
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skin_tone_self 同时反推 hue/lightness，保证季型/肤色档内部一致。
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- **哈希驱动**（sha256(object_key + canonical 问卷)，face/body 两组独立盐）：
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- face 组：d0/d1/d2 → 色相/亮度/色度（-1~1 连续值），季型=色相冷热 ×
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亮度深浅（暖+亮→春、冷+柔→夏、暖+深→秋、冷+亮→冬），十二季=季型 ×
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色度/亮度细分；d3~d10 → 脸型/三庭五眼/五官/立体度。
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- body 组：b0 → 体型枚举选择；b1~b3 → 身体局部特征多标签；
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b4 → 上下身比例（0.58~0.68）；b5/b6 → 量感(30~70)/直曲；b7 → 动静；
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b8~b21 → 发长/卷度/发色/九型基因风格评分（3~10 分）。
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"""
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async def analyze(
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self, photo_meta: dict[str, Any], questionnaire: dict[str, Any]
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) -> dict[str, Any]:
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object_key = str(photo_meta.get("object_key", ""))
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face = _seed(object_key, questionnaire, "face")
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body = _seed(object_key, questionnaire, "body")
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# -- 色彩三轴：连续值 + 三档标签（粗判即标签口径） --------------------
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hue = round(face[0] / 255 * 2 - 1, 3)
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lightness = round(face[1] / 255 * 2 - 1, 3)
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chroma = round(face[2] / 255 * 2 - 1, 3)
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# 问卷肤色自评优先：粉系=冷（hue<0）、黄系=暖；白度档位反推亮度。
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skin_tone_self = questionnaire.get("skin_tone_self")
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if isinstance(skin_tone_self, str) and skin_tone_self in SKIN_TONES:
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skin_tone = skin_tone_self
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hue = -abs(hue) - 0.05 if skin_tone.startswith("粉") else abs(hue) + 0.05
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if skin_tone.endswith("一白"):
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lightness = 0.6
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elif skin_tone.endswith("二白"):
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lightness = 0.2
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elif skin_tone == "粉三白":
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lightness = -0.1
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else: # 黄黑皮
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lightness = -0.6
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else:
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if lightness > 0.35:
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skin_tone = "粉一白" if hue < 0 else "黄一白"
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elif lightness > 0.1:
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skin_tone = "粉二白" if hue < 0 else "黄二白"
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elif lightness > -0.2:
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skin_tone = "粉三白"
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else:
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skin_tone = "黄黑皮"
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warm = hue >= 0
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season_code = (
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"spring"
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if warm and lightness >= 0
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else ("autumn" if warm else ("summer" if lightness >= 0 else "winter"))
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)
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if season_code == "spring":
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season_detailed = "亮春" if chroma > 0.25 else ("浅春" if lightness > 0.5 else "暖春")
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elif season_code == "summer":
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season_detailed = "浅夏" if lightness > 0.5 else ("柔夏" if chroma < -0.25 else "冷夏")
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elif season_code == "autumn":
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season_detailed = "柔秋" if chroma < -0.25 else ("深秋" if lightness < -0.5 else "暖秋")
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else:
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season_detailed = "亮冬" if chroma > 0.25 else ("深冬" if lightness < -0.5 else "冷冬")
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# -- 体型（问卷 BMI 主驱动，自评覆盖） --------------------------------
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body_shape_self = questionnaire.get("body_shape_self")
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if isinstance(body_shape_self, str) and body_shape_self in BODY_SHAPES:
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body_shape = body_shape_self
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else:
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bmi = _bmi(questionnaire)
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if bmi is None:
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body_shape = _pick(body, 0, BODY_SHAPES)
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elif bmi < 18.5:
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body_shape = _pick(body, 0, ("A", "H"))
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elif bmi < 24:
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body_shape = _pick(body, 0, ("X", "H", "T"))
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elif bmi < 28:
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body_shape = _pick(body, 0, ("O", "T"))
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else:
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body_shape = "O"
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feature_pool = ("溜肩", "平肩", "宽肩", "短颈", "长腰", "短腰", "粗腿")
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body_features = [_pick(body, 1, feature_pool)]
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extra = _pick(body, 2, feature_pool)
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if extra not in body_features and body[3] % 2 == 1:
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body_features.append(extra)
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volume_score = 30 + body[5] % 41
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curve_score = round(body[6] / 255 * 2 - 1, 3)
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face_shape_self = questionnaire.get("face_shape_self")
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face_shape = (
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face_shape_self
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if isinstance(face_shape_self, str) and face_shape_self in FACE_SHAPES
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else _pick(face, 3, FACE_SHAPES)
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)
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gene_scores = {style: 3 + body[13 + i] % 8 for i, style in enumerate(STYLE_TYPES)}
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hair_hex = f"#{40 + body[10] % 80:02X}{20 + body[11] % 60:02X}{body[12] % 80:02X}"
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return {
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"body_shape": body_shape,
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"body_features": body_features,
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"body_ratio": round(0.58 + body[4] / 255 * 0.10, 3),
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"face_shape": face_shape,
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"face_proportions": _pick(face, 4, ("均匀", "上庭偏长", "中庭偏长", "下庭偏长")),
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"facial_details": {
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"眉形": _pick(face, 5, ("平直眉", "弯眉", "挑眉")),
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"眼型": _pick(face, 6, ("杏仁眼", "圆眼", "细长眼")),
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"双眼皮": _pick(face, 7, ("双眼皮", "内双")),
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"鼻型": _pick(face, 8, ("直鼻", "翘鼻", "宽鼻")),
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"唇形": _pick(face, 9, ("薄唇", "标准唇", "厚唇")),
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},
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"face_depth": round(face[10] % 101 / 10, 1),
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"skin_lab": {
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"l": round(45 + (lightness + 1) * 20, 1),
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"a": round(hue * 12, 1),
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"b": round(20 + chroma * 15, 1),
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},
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"skin_tone": skin_tone,
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"face_hue": {
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"value": round(hue, 3),
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"label": "偏冷" if hue < -0.33 else ("偏暖" if hue > 0.33 else "中性"),
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},
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"face_lightness": {
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"value": round(lightness, 3),
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"label": "白皙" if lightness > 0.33 else ("暗沉" if lightness < -0.33 else "适中"),
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},
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"face_chroma": {
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"value": round(chroma, 3),
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"label": "鲜艳" if chroma > 0.33 else ("柔和" if chroma < -0.33 else "适中"),
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},
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"face_contrast": "高" if chroma > 0.2 else ("低" if chroma < -0.2 else "适中"),
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"season_code": season_code,
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"season_detailed": season_detailed,
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"volume": {
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"label": "小" if volume_score < 40 else ("中" if volume_score <= 55 else "大"),
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"score": volume_score,
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},
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"curve_straight": {
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"label": "偏曲"
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if curve_score < -0.33
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else ("偏直" if curve_score > 0.33 else "适中"),
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"score": curve_score,
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},
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"motion": _pick(body, 7, ("动态型", "动静适中", "静态型")),
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"gene_style_scores": gene_scores,
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"hair_status": {
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"length": _pick(body, 8, ("短", "中", "长")),
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"curl": _pick(body, 9, ("直", "微卷", "大卷")),
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},
|
||||
"hair_color": {"hex": hair_hex, "tone": "冷" if hue < 0 else "暖"},
|
||||
}
|
||||
|
||||
|
||||
def build_vision_provider(settings: Settings) -> VisionProvider:
|
||||
"""按配置装配视觉提供者。未知名直接 CONFIG_ERROR——静默回退到默认实现
|
||||
会让"配置了真实模型却跑着 mock"这种事故无人察觉。"""
|
||||
name = settings.report_vision_provider
|
||||
if name == "deterministic":
|
||||
return DeterministicVisionProvider()
|
||||
raise AppError(
|
||||
ErrorCode.CONFIG_ERROR,
|
||||
message="未知的报告视觉提供者",
|
||||
data={"report_vision_provider": name},
|
||||
)
|
||||
Reference in New Issue
Block a user