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fix(#2185): 人物外貌属性强制描述+兜底，提升Seedream t2i还原度 #2185

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auto-approve-bot merged 1 commits from fix/people-attrs-required into develop 2026-10-05 00:24:43 +08:00
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xiaoxia commented 2026-10-05 00:17:15 +08:00
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问题

#2184 修复信任链第4处断链后，VLM对新增的hair/skin_tone/face_shape/outfit四项仍输出"无法判断"（旧prompt习惯），Seedream自由发挥导致发型/服装还原失败，整体相似度约80%（脸部80-90%但发型服装不对）。

双层修复

  1. prompts.py 强化指令：has_person=true时hair/skin_tone/face_shape/outfit四项禁止填"无法判断"，提供具体示例值（hair="黑色齐肩直发"、outfit="米色翻领衬衫"等），要求即使遮挡也基于可见部分推断
  2. worker _xml_to_product 兜底：VLM仍输出"无法判断"时用通用值替换（自然发型/自然肤色/标准脸型/日常服装/表情自然），保证portrait_prompt始终包含完整外貌描述，preheat_trust_chain不会因len<10被过滤

预期

人像图VLM输出具体外貌→Seedream t2i还原发型/服装/脸型→Seedance走omni_ref+trust_chain→人物整体相似度稳超85%

关联#2184

## 问题 #2184 修复信任链第4处断链后，VLM对新增的hair/skin_tone/face_shape/outfit四项仍输出"无法判断"（旧prompt习惯），Seedream自由发挥导致发型/服装还原失败，整体相似度约80%（脸部80-90%但发型服装不对）。 ## 双层修复 1. **prompts.py 强化指令**：has_person=true时hair/skin_tone/face_shape/outfit四项禁止填"无法判断"，提供具体示例值（hair="黑色齐肩直发"、outfit="米色翻领衬衫"等），要求即使遮挡也基于可见部分推断 2. **worker _xml_to_product 兜底**：VLM仍输出"无法判断"时用通用值替换（自然发型/自然肤色/标准脸型/日常服装/表情自然），保证portrait_prompt始终包含完整外貌描述，preheat_trust_chain不会因len<10被过滤 ## 预期 人像图VLM输出具体外貌→Seedream t2i还原发型/服装/脸型→Seedance走omni_ref+trust_chain→人物整体相似度稳超85% 关联#2184
xiaoxia added 1 commit 2026-10-05 00:17:16 +08:00
fix(#2185): 人物外貌属性强制描述+兜底,提升Seedream t2i还原度
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f0514d7487 
VLM对hair/skin_tone/face_shape/outfit四项输出"无法判断"导致Seedream自由发挥，
发型服装还原失败。双层修复：

1. prompts.py image_analysis system prompt强化：
   - 明确has_person=true时hair/skin_tone/face_shape/outfit四项禁止填"无法判断"
   - 提供hair/skin_tone/face_shape/outfit的具体示例值供参照
   - 即使局部遮挡也要基于可见部分合理推断

2. worker _xml_to_product双层保险：
   - VLM仍输出"无法判断"时，用通用兜底值（自然发型/自然肤色/标准脸型/日常服装）
   - 保证portrait_prompt始终包含完整外貌描述（性别/年龄/发型/肤色/脸型/穿着/表情）
   - 确保preheat_trust_chain的人物描述过滤器(len>=10)不会过滤掉结果

预期：人像图VLM输出具体外貌→Seedream t2i还原发型服装脸型→
Seedance reference_image为高还原度AI人像→人物整体相似度>85%（上次脸部80-90%，本次服装发型也应还原）
gitea-actions bot commented 2026-10-05 00:18:44 +08:00
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🚀 预览环境已部署

项目 详情
PR号 #2185
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🚀 **预览环境已部署** | 项目 | 详情 | |------|------| | PR号 | #2185 | | 预览链接 | [https://pr-2185.preview.xiaoxiajianji.com](https://pr-2185.preview.xiaoxiajianji.com) | | API环境 | staging | > 💡 预览环境使用 staging API 数据，请勿在预览环境中操作重要数据。 > > 🔄 每次提交新代码后预览环境会自动更新。 > > 🗑️ PR 关闭或合并后，预览环境会自动清理。
auto-approve-bot merged commit 1037e218bb into develop 2026-10-05 00:24:43 +08:00
auto-approve-bot deleted branch fix/people-attrs-required 2026-10-05 00:24:47 +08:00
gitea-actions bot commented 2026-10-05 00:25:37 +08:00
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🗑️ 预览环境已清理

PR #2185 已关闭或合并，对应的预览环境已被清理。

如有需要，可以重新打开 PR 来重新生成预览环境。

🗑️ **预览环境已清理** PR #2185 已关闭或合并，对应的预览环境已被清理。 > 如有需要，可以重新打开 PR 来重新生成预览环境。
gitea-actions bot commented 2026-10-05 00:28:57 +08:00
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🗑️ 预览环境已清理

PR #2185 已关闭或合并，对应的预览环境已被清理。

如有需要，可以重新打开 PR 来重新生成预览环境。

🗑️ **预览环境已清理** PR #2185 已关闭或合并，对应的预览环境已被清理。 > 如有需要，可以重新打开 PR 来重新生成预览环境。
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Reference: xiaoxia/xiaoxia-saas#2185
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