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一个正点可能指局部，也可能指整体","sha256":"786cea83d7928a52ef057c2abdc19be981e3413dd49132c4e67f963cb03b00fe","chapter":{"id":"II","title":"区域、像素与实例"},"unit":{"id":"prompted-spatial-output","title":"提示怎样指定这一次要分的区域？"},"page":{"id":"prompt-mask-granularity","title":"一个正点可能指局部，也可能指整体","number":1},"sectionTitle":"一个正点可能指局部，也可能指整体","currentQuestion":"点、框和已有表示怎样结合，提示能力又从哪里学来？","sourceSlides":["l3-r2-p46"],"knowledgeBlock":null,"formulas":[],"previousBlock":null,"nextBlock":"b-29810b18afaf271ade27f9bc","prerequisites":[{"id":"b-f1846b2331feb3763b9d7bd6","url":"#b-f1846b2331feb3763b9d7bd6","role":"problem-context"}],"relatedBlocks":[{"id":"b-1857ff6a7ab2f27c49dc499c","url":"#b-1857ff6a7ab2f27c49dc499c","relation":"figure-and-explanation"}]},{"id":"b-29810b18afaf271ade27f9bc","type":"h2","scope":"explanation","url":"https://codingai-lec03.pages.dev/course/pages/l3-r2-p46.html#b-29810b18afaf271ade27f9bc","content":"## 解释、算例与证据","sha256":"d71cf15e707c8a3674b4c90a599efee783cb84da5b8c8236a1d01c3add7b4958","chapter":{"id":"II","title":"区域、像素与实例"},"unit":{"id":"prompted-spatial-output","title":"提示怎样指定这一次要分的区域？"},"page":{"id":"prompt-mask-granularity","title":"一个正点可能指局部，也可能指整体","number":1},"sectionTitle":"一个正点可能指局部，也可能指整体","currentQuestion":"点、框和已有表示怎样结合，提示能力又从哪里学来？","sourceSlides":["l3-r2-p46"],"knowledgeBlock":null,"formulas":[],"previousBlock":"b-8e12514bad6c2502d9c37dc9","nextBlock":"b-3a572afdd0f175c57a743214","prerequisites":[{"id":"b-8e12514bad6c2502d9c37dc9","url":"#b-8e12514bad6c2502d9c37dc9","role":"section-title"},{"id":"b-f1846b2331feb3763b9d7bd6","url":"#b-f1846b2331feb3763b9d7bd6","role":"problem-context"}],"relatedBlocks":[{"id":"b-1857ff6a7ab2f27c49dc499c","url":"#b-1857ff6a7ab2f27c49dc499c","relation":"figure-and-explanation"}]},{"id":"b-3a572afdd0f175c57a743214","type":"h1","scope":"document","url":"https://codingai-lec03.pages.dev/course/pages/l3-r2-p46.html#b-3a572afdd0f175c57a743214","content":"# P46 · 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的可复用图像表示和轻量提示解码使交互更方便；当前 LAB16 是透明规则对照，应准确区分规则输出、教学标注和真正模型输出。","sha256":"cc360b3357cf196b2e5ddeb14dfa0fc981c6483b9b6d354127392b41cd622396","chapter":{"id":"II","title":"区域、像素与实例"},"unit":{"id":"prompted-spatial-output","title":"提示怎样指定这一次要分的区域？"},"page":{"id":"prompt-mask-granularity","title":"一个正点可能指局部，也可能指整体","number":1},"sectionTitle":"一个正点可能指局部，也可能指整体","currentQuestion":"点、框和已有表示怎样结合，提示能力又从哪里学来？","sourceSlides":["l3-r2-p46"],"knowledgeBlock":null,"formulas":[],"previousBlock":"b-3a572afdd0f175c57a743214","nextBlock":"b-1857ff6a7ab2f27c49dc499c","prerequisites":[{"id":"b-3a572afdd0f175c57a743214","url":"#b-3a572afdd0f175c57a743214","role":"section-title"}],"relatedBlocks":[{"id":"b-1857ff6a7ab2f27c49dc499c","url":"#b-1857ff6a7ab2f27c49dc499c","relation":"figure-and-explanation"}]},{"id":"b-1857ff6a7ab2f27c49dc499c","type":"figure","scope":"document","url":"https://codingai-lec03.pages.dev/course/pages/l3-r2-p46.html#b-1857ff6a7ab2f27c49dc499c","content":"图内标签与数值：Lecture 03 课堂图解 P46；增加框和杯身正点；整只杯子；新增提示；缩小目标歧义；正点：要求包含；负点：要求排除；由提示约束希望分出的区域；点、框等提示指定分割区域；图示掩码为教学标注。\n\n同一图像杯柄正点对应整杯和杯柄两个教学掩码；增加框与杯身正点以约束整体目标。\n\n- 增加框和杯身正点\n- 整只杯子\n- 新增提示\n- 缩小目标歧义\n- 正点：要求包含\n- 负点：要求排除\n- 由提示约束希望分出的区域\n- 点、框等提示指定分割区域；图示掩码为教学标注。同一图像杯柄正点对应整杯和杯柄两个教学掩码；增加框与杯身正点以约束整体目标。 [查看对应图解状态](/#/l3-r2-p46/1)[查看完整图解](/course/figures/l3-r2-p46-1.html)","sha256":"0136d487818563b4155aab8bd702832eb00fc512193e7fdaec4a9237f6e04dfb","chapter":{"id":"II","title":"区域、像素与实例"},"unit":{"id":"prompted-spatial-output","title":"提示怎样指定这一次要分的区域？"},"page":{"id":"prompt-mask-granularity","title":"一个正点可能指局部，也可能指整体","number":1},"sectionTitle":"一个正点可能指局部，也可能指整体","currentQuestion":"点、框和已有表示怎样结合，提示能力又从哪里学来？","sourceSlides":["l3-r2-p46"],"knowledgeBlock":null,"formulas":[],"figure":{"caption":"同一图像杯柄正点对应整杯和杯柄两个教学掩码；增加框与杯身正点以约束整体目标。 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课堂讲述","sha256":"786ce10a6b32a492259a3dccd0a54e61cd41d28a34382fb7b5386c5f03b7ad69","chapter":{"id":"II","title":"区域、像素与实例"},"unit":{"id":"prompted-spatial-output","title":"提示怎样指定这一次要分的区域？"},"page":{"id":"prompt-mask-granularity","title":"一个正点可能指局部，也可能指整体","number":1},"sectionTitle":"一个正点可能指局部，也可能指整体","currentQuestion":"点、框和已有表示怎样结合，提示能力又从哪里学来？","sourceSlides":["l3-r2-p46"],"knowledgeBlock":null,"formulas":[],"previousBlock":"b-1857ff6a7ab2f27c49dc499c","nextBlock":"b-15987bb947ca68d26f8a04ef","prerequisites":[{"id":"b-3a572afdd0f175c57a743214","url":"#b-3a572afdd0f175c57a743214","role":"section-title"},{"id":"b-f1846b2331feb3763b9d7bd6","url":"#b-f1846b2331feb3763b9d7bd6","role":"problem-context"}],"relatedBlocks":[{"id":"b-1857ff6a7ab2f27c49dc499c","url":"#b-1857ff6a7ab2f27c49dc499c","relation":"figure-and-explanation"}]},{"id":"b-15987bb947ca68d26f8a04ef","type":"p","scope":"narrative","url":"https://codingai-lec03.pages.dev/course/pages/l3-r2-p46.html#b-15987bb947ca68d26f8a04ef","content":"前面主要把任务写成固定的训练输出。SAM 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