{
  "taskId": "expansion-051",
  "slug": "mirror-single-subject-reflection-check",
  "language": "zh",
  "mode": "image-to-video",
  "modelId": "MiniMax-H3",
  "evidenceClass": "original-practice-method-not-model-tested",
  "input": {
    "path": "/learning-assets/pseo-expansion70-20261014/mirror-single-subject-reflection-check/first-frame.png",
    "editableSource": "/learning-assets/pseo-expansion70-20261014/mirror-single-subject-reflection-check/first-frame.svg",
    "role": "first_frame",
    "sourceType": "original-illustration"
  },
  "intent": {
    "cluster": "Historical reference input and image-to-video prompt family",
    "historicalQueries": [
      "minimax h3 image to video",
      "minimax h3 reference images",
      "minimax h3提示词模板"
    ],
    "evidenceRef": "docs/research/pseo-keyword-gap-2026-10-05/evidence/bing-live-keywords.csv",
    "distinctValue": "One visible bottle and its mirror reflection move together during a short tabletop slide; the mirror frame, clipping boundary and matched stop time are inspectable.",
    "existingOwnerBoundary": [
      {
        "path": "/blog/product-shape-consistency-video",
        "difference": "This supplied mirror scene separates the physical product from its reflected image and checks the glass boundary, rather than providing broad shape-preservation advice."
      },
      {
        "path": "/blog/image-to-video-motion-prompts",
        "difference": "The specific task includes linked subject/reflection timing and mirror clipping checks absent from a general first-frame motion guide."
      }
    ],
    "demandClass": "historical-parent-query; exact long-tail demand unmeasured"
  },
  "title": "单主体镜面反射：核对镜内运动与边界",
  "description": "让镜前一个瓶子在桌面短距离滑动，检查镜内对应影像、同步停止和镜框边界，避免变成第二个实物。",
  "goal": "要求瓶子短滑，反射影像对应响应并同时停住。原创插画用于视觉规划，本方法未在H3上实测，也不能证明反射几何精确。",
  "preparation": [
    "首帧应只有一个实物、一个可读反射，并完整保留镜框。配套瓶子轮廓简单，便于检查数量和瓶颈比例。",
    "实物与镜内影像尽量分开，不严重重叠；镜缘被裁掉或重叠过多时，先换清楚构图。",
    "只规划能让反射留在镜内的短距离桌面滑动。反射关系取决于镜面平面和视角，不能笼统套用屏幕左右反转规则。",
    "商品反射率或镜面几何必须严格准确时，使用受控实拍、合成或三维渲染。本任务检查可见连续性与边界行为。"
  ],
  "prompt": "从上传的镜面场景开始：桌面上只有一个实体瓶子，带框镜子内部只有它的一个对应反射。镜子、桌面、摄影机与灯光固定。实体瓶子保持直立和桌面接触，缓慢向右滑动一小段。镜内对应影像在同一动作中连贯响应，瓶子停下时它也停下。两处视图保留瓶身轮廓、瓶颈比例和唯一瓶盖。反射内容只留在玻璃范围内，不盖过镜框，也不变成额外实体瓶子。结尾两处都静止。不运镜，不复制商品，不改变镜框。",
  "steps": [
    {
      "title": "区分实物与镜内影像",
      "body": "运行前数清桌面一个实物、镜内一个影像。镜内瓶子是相连内容，不是可以另行动作的第二个角色。"
    },
    {
      "title": "设定一次对应动作",
      "body": "写成直立瓶子向右短滑，反射在同一动作中响应。固定镜子和机位，防止其移动掩盖反射漂移。"
    },
    {
      "title": "在运动中检查镜缘",
      "body": "中段查看最靠近镜框的反射。它应限制在玻璃范围内，不能涂到镜框、墙面，或延伸成镜前第二个实体。"
    },
    {
      "title": "对照两处停止状态",
      "body": "采样动作前、中和结尾，检查共同起止时机与连贯瓶颈、瓶盖。必须精确反射几何时转用实拍或合成，不能把看似合理标成已验证准确。"
    }
  ],
  "acceptance": [
    "始终一个实体瓶子和一个对应镜内影像。",
    "镜框固定，形状保持原样。",
    "实体瓶子只滑一次，直立并受台面支撑。",
    "镜内影像在同一动作中响应，实体停住时也停住。",
    "两处瓶身轮廓、瓶颈比例和瓶盖数量连贯。",
    "反射内容始终在玻璃范围内，没有覆盖镜框。",
    "结尾停留时镜外没有额外实体瓶子。"
  ],
  "troubleshooting": [
    {
      "symptom": "出现第二个实体瓶子",
      "change": "只改职责，写清唯一实物及限制在玻璃内的影像，保留短滑。"
    },
    {
      "symptom": "反射延迟或瓶子停后还在动",
      "change": "只把时序句改成共同移动、共同停住，检查转入停留的过渡。"
    },
    {
      "symptom": "影像跨到镜框表面",
      "change": "只缩短滑行距离，在玻璃内留更多余量，再检查边界。"
    },
    {
      "symptom": "镜框或机位跟着瓶子走",
      "change": "只将镜框和摄影机明确锁定，保留原瓶子行程。"
    }
  ],
  "ending": "结尾实体与反射都静止，分别处于场景正确区域。将连续性与边界结果单独记录，未解决的几何准确性另行说明。",
  "assetCaption": "原创瓶子与镜子插画，用于对应运动检查；其中反射只是插画简报示例，不是H3结果或测量光学参照。"
}