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在同一场景里比较四种答案","sha256":"541f39ef43b3da3b4702859d74f920638a647c2d0334cb1d84a7a3deea6b9470","chapter":{"id":"II","title":"区域、像素与实例"},"unit":{"id":"spatial-answer-contract","title":"任务究竟要求留下什么信息？"},"page":{"id":"spatial-answer-forms","title":"在同一场景里比较四种答案","number":1},"sectionTitle":"在同一场景里比较四种答案","currentQuestion":"从类别到框、像素与实例，输出要求怎样改变表示的读取？","sourceSlides":["l3-r2-p25"],"knowledgeBlock":null,"formulas":[],"previousBlock":null,"nextBlock":"b-c34d21cdcf608d6291919b3b","prerequisites":[{"id":"b-cc510111517122c9779c88cf","url":"#b-cc510111517122c9779c88cf","role":"problem-context"}],"relatedBlocks":[{"id":"b-7bdf2945ca45b2a70eb6567d","url":"#b-7bdf2945ca45b2a70eb6567d","relation":"figure-and-explanation"}]},{"id":"b-c34d21cdcf608d6291919b3b","type":"h2","scope":"explanation","url":"https://codingai-lec03.pages.dev/course/pages/l3-r2-p25.html#b-c34d21cdcf608d6291919b3b","content":"## 解释、算例与证据","sha256":"d71cf15e707c8a3674b4c90a599efee783cb84da5b8c8236a1d01c3add7b4958","chapter":{"id":"II","title":"区域、像素与实例"},"unit":{"id":"spatial-answer-contract","title":"任务究竟要求留下什么信息？"},"page":{"id":"spatial-answer-forms","title":"在同一场景里比较四种答案","number":1},"sectionTitle":"在同一场景里比较四种答案","currentQuestion":"从类别到框、像素与实例，输出要求怎样改变表示的读取？","sourceSlides":["l3-r2-p25"],"knowledgeBlock":null,"formulas":[],"previousBlock":"b-db396d2e3169d0c0153d9699","nextBlock":"b-65fb4744f3225b58e30e3582","prerequisites":[{"id":"b-db396d2e3169d0c0153d9699","url":"#b-db396d2e3169d0c0153d9699","role":"section-title"},{"id":"b-cc510111517122c9779c88cf","url":"#b-cc510111517122c9779c88cf","role":"problem-context"}],"relatedBlocks":[{"id":"b-7bdf2945ca45b2a70eb6567d","url":"#b-7bdf2945ca45b2a70eb6567d","relation":"figure-and-explanation"}]},{"id":"b-65fb4744f3225b58e30e3582","type":"h1","scope":"document","url":"https://codingai-lec03.pages.dev/course/pages/l3-r2-p25.html#b-65fb4744f3225b58e30e3582","content":"# P25 · 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mask 是教学标注。课后从这里进入两个真正学习任务，才能把“更精细”落实为目标与评价的变化。","sha256":"01d81392da8fd0c25e533fecd39f8a56ca82531fb99060f79e5a767b77b9fcd7","chapter":{"id":"II","title":"区域、像素与实例"},"unit":{"id":"spatial-answer-contract","title":"任务究竟要求留下什么信息？"},"page":{"id":"spatial-answer-forms","title":"在同一场景里比较四种答案","number":1},"sectionTitle":"在同一场景里比较四种答案","currentQuestion":"从类别到框、像素与实例，输出要求怎样改变表示的读取？","sourceSlides":["l3-r2-p25"],"knowledgeBlock":null,"formulas":[],"previousBlock":"b-65fb4744f3225b58e30e3582","nextBlock":"b-7bdf2945ca45b2a70eb6567d","prerequisites":[{"id":"b-65fb4744f3225b58e30e3582","url":"#b-65fb4744f3225b58e30e3582","role":"section-title"}],"relatedBlocks":[{"id":"b-7bdf2945ca45b2a70eb6567d","url":"#b-7bdf2945ca45b2a70eb6567d","relation":"figure-and-explanation"}]},{"id":"b-7bdf2945ca45b2a70eb6567d","type":"figure","scope":"document","url":"https://codingai-lec03.pages.dev/course/pages/l3-r2-p25.html#b-7bdf2945ca45b2a70eb6567d","content":"图内标签与数值：Lecture 03 课堂图解 P25；分类：图中有什么；杯子 · 书；检测：每个对象在哪里；类别 + 框；两只杯子；一册书；语义：每个像素是什么；颜色 = 类别；杯子；书；实例：属于哪一个对象；颜色 = 实例 ID；杯子 #1；杯子 #2；同一底图；框与可见轮廓为教学标注。输出结构不同，所需监督也不同。\n\n同一双杯书本底图的分类、检测、语义分割与实例分割四联图；语义颜色编码类别，实例颜色编码对象 ID。\n\n- 分类：图中有什么\n- 杯子 · 书\n- 检测：每个对象在哪里\n- 类别 + 框\n- 两只杯子\n- 一册书\n- 语义：每个像素是什么\n- 颜色 = 类别\n- 杯子\n- 书\n- 实例：属于哪一个对象\n- 颜色 = 实例 ID\n- 杯子 #1\n- 杯子 #2\n- 同一底图；框与可见轮廓为教学标注。输出结构不同，所需监督也不同。同一双杯书本底图的分类、检测、语义分割与实例分割四联图；语义颜色编码类别，实例颜色编码对象 ID。 [查看对应图解状态](/#/l3-r2-p25/0)[查看完整图解](/course/figures/l3-r2-p25-0.html)","sha256":"09ce8a61bf65b7e6ffada4ce9fb28bc0016aae794dc88c04b6a5cd6c9097a4c6","chapter":{"id":"II","title":"区域、像素与实例"},"unit":{"id":"spatial-answer-contract","title":"任务究竟要求留下什么信息？"},"page":{"id":"spatial-answer-forms","title":"在同一场景里比较四种答案","number":1},"sectionTitle":"在同一场景里比较四种答案","currentQuestion":"从类别到框、像素与实例，输出要求怎样改变表示的读取？","sourceSlides":["l3-r2-p25"],"knowledgeBlock":null,"formulas":[],"figure":{"caption":"同一双杯书本底图的分类、检测、语义分割与实例分割四联图；语义颜色编码类别，实例颜色编码对象 ID。 查看对应图解状态","labels":["分类：图中有什么","杯子 · 书","检测：每个对象在哪里","类别 + 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