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论文说 RoIAlign 更准确，这里却说换采样没用，是不是自相矛盾？","sha256":"91da615abd9f11d79355bc8fe5654d1246f1d2ef6db22daa46bc247bda588c02","chapter":{"id":"II","title":"区域、像素与实例"},"unit":{"id":"spatial-information-preservation","title":"瓶颈是读错位置，还是差别根本没有保留？"},"page":{"id":"reading-opening","title":"备课推演：对齐有用，为什么问卷里又不能恢复？","number":1},"sectionTitle":"备课推演：对齐有用，为什么问卷里又不能恢复？","currentQuestion":"备课推演：对齐有用，为什么问卷里又不能恢复？","sourceSlides":[],"knowledgeBlock":null,"formulas":[],"previousBlock":"b-c4fd4bb1f68d82ef5b2b733a","nextBlock":"b-5b75ffeae78939a28f83d42a","prerequisites":[{"id":"b-16e9a998bf3358d757da194e","url":"#b-16e9a998bf3358d757da194e","role":"section-title"},{"id":"b-e4c42798e4881e4edda6d86e","url":"#b-e4c42798e4881e4edda6d86e","role":"problem-context"}],"relatedBlocks":[]},{"id":"b-5b75ffeae78939a28f83d42a","type":"p","scope":"roi-information-dialogue","url":"https://codingai-lec03.pages.dev/course/blocks/roi-information-dialogue.html#b-5b75ffeae78939a28f83d42a","content":"**教师：** 先把两个输入条件指出来。论文比较不同区域读取方式训练的模型，特征里有可以利用的空间线索；正确坐标让它读得更好。现在图上甲乙都被我们规定为同一个 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放大成很多像素呢？","sha256":"1b4cb1d1397deda2ab0267237a6a26278baa4ad4eb3b946fac42318a852403d5","chapter":{"id":"II","title":"区域、像素与实例"},"unit":{"id":"spatial-information-preservation","title":"瓶颈是读错位置，还是差别根本没有保留？"},"page":{"id":"reading-opening","title":"备课推演：对齐有用，为什么问卷里又不能恢复？","number":1},"sectionTitle":"备课推演：对齐有用，为什么问卷里又不能恢复？","currentQuestion":"备课推演：对齐有用，为什么问卷里又不能恢复？","sourceSlides":[],"knowledgeBlock":null,"formulas":[],"previousBlock":"b-5b75ffeae78939a28f83d42a","nextBlock":"b-447c14cf7b617ae21b7633bd","prerequisites":[{"id":"b-16e9a998bf3358d757da194e","url":"#b-16e9a998bf3358d757da194e","role":"section-title"},{"id":"b-e4c42798e4881e4edda6d86e","url":"#b-e4c42798e4881e4edda6d86e","role":"problem-context"}],"relatedBlocks":[]},{"id":"b-447c14cf7b617ae21b7633bd","type":"p","scope":"roi-information-dialogue","url":"https://codingai-lec03.pages.dev/course/blocks/roi-information-dialogue.html#b-447c14cf7b617ae21b7633bd","content":"**教师：** 指着甲乙放大的第一行看，它们是不是还一样？增加输出位置没有改变函数的输入。再看下一页，我们增加左右差通道，甲是 +1、乙是 −1。这次确实提供了新信息，所以同一个读出可以给出不同答案。","sha256":"22e51595d9a7cf03b3165a3d14e280446eba8bcb2d5f98f6235bb0f8017a3033","chapter":{"id":"II","title":"区域、像素与实例"},"unit":{"id":"spatial-information-preservation","title":"瓶颈是读错位置，还是差别根本没有保留？"},"page":{"id":"reading-opening","title":"备课推演：对齐有用，为什么问卷里又不能恢复？","number":1},"sectionTitle":"备课推演：对齐有用，为什么问卷里又不能恢复？","currentQuestion":"备课推演：对齐有用，为什么问卷里又不能恢复？","sourceSlides":[],"knowledgeBlock":null,"formulas":[],"previousBlock":"b-547d6f51fd62d444d9655c38","nextBlock":"b-df170f1c51f4321968e9107d","prerequisites":[{"id":"b-16e9a998bf3358d757da194e","url":"#b-16e9a998bf3358d757da194e","role":"section-title"},{"id":"b-e4c42798e4881e4edda6d86e","url":"#b-e4c42798e4881e4edda6d86e","role":"problem-context"}],"relatedBlocks":[]},{"id":"b-df170f1c51f4321968e9107d","type":"p","scope":"roi-information-dialogue","url":"https://codingai-lec03.pages.dev/course/blocks/roi-information-dialogue.html#b-df170f1c51f4321968e9107d","content":"**学生：** 实际分割不好，我怎么知道是哪种情况？","sha256":"9c6214cc5b5845cbab52bb501fd71ad4ef2eee82703ed0a35e7c6f6d184ed5e1","chapter":{"id":"II","title":"区域、像素与实例"},"unit":{"id":"spatial-information-preservation","title":"瓶颈是读错位置，还是差别根本没有保留？"},"page":{"id":"reading-opening","title":"备课推演：对齐有用，为什么问卷里又不能恢复？","number":1},"sectionTitle":"备课推演：对齐有用，为什么问卷里又不能恢复？","currentQuestion":"备课推演：对齐有用，为什么问卷里又不能恢复？","sourceSlides":[],"knowledgeBlock":null,"formulas":[],"previousBlock":"b-447c14cf7b617ae21b7633bd","nextBlock":"b-e26cd7b962f4506bd40f432f","prerequisites":[{"id":"b-16e9a998bf3358d757da194e","url":"#b-16e9a998bf3358d757da194e","role":"section-title"},{"id":"b-e4c42798e4881e4edda6d86e","url":"#b-e4c42798e4881e4edda6d86e","role":"problem-context"}],"relatedBlocks":[]},{"id":"b-e26cd7b962f4506bd40f432f","type":"p","scope":"roi-information-dialogue","url":"https://codingai-lec03.pages.dev/course/blocks/roi-information-dialogue.html#b-e26cd7b962f4506bd40f432f","content":"**教师：** 先检查标注与坐标能否对上，再固定模型做采样对照；若疑似特征不区分，可以尝试接入较细层，或设计有针对性的 probe。一次失败可能有多处原因，不能从一张模糊 mask 直接断言。","sha256":"889643e455f0b36432752ae388e97264df6a2d7c156a17c9b26333c62a8c2257","chapter":{"id":"II","title":"区域、像素与实例"},"unit":{"id":"spatial-information-preservation","title":"瓶颈是读错位置，还是差别根本没有保留？"},"page":{"id":"reading-opening","title":"备课推演：对齐有用，为什么问卷里又不能恢复？","number":1},"sectionTitle":"备课推演：对齐有用，为什么问卷里又不能恢复？","currentQuestion":"备课推演：对齐有用，为什么问卷里又不能恢复？","sourceSlides":[],"knowledgeBlock":null,"formulas":[],"previousBlock":"b-df170f1c51f4321968e9107d","nextBlock":"b-1163d6bdcda72af29953be15","prerequisites":[{"id":"b-16e9a998bf3358d757da194e","url":"#b-16e9a998bf3358d757da194e","role":"section-title"},{"id":"b-e4c42798e4881e4edda6d86e","url":"#b-e4c42798e4881e4edda6d86e","role":"problem-context"}],"relatedBlocks":[]},{"id":"b-1163d6bdcda72af29953be15","type":"h2","scope":"roi-information-dialogue","url":"https://codingai-lec03.pages.dev/course/blocks/roi-information-dialogue.html#b-1163d6bdcda72af29953be15","content":"## 继续阅读与实验","sha256":"2b9ccef7e1220e2250cceff1abd8bdd736b42f8da5a223f26b029f44b962e807","chapter":{"id":"II","title":"区域、像素与实例"},"unit":{"id":"spatial-information-preservation","title":"瓶颈是读错位置，还是差别根本没有保留？"},"page":{"id":"reading-opening","title":"备课推演：对齐有用，为什么问卷里又不能恢复？","number":1},"sectionTitle":"备课推演：对齐有用，为什么问卷里又不能恢复？","currentQuestion":"备课推演：对齐有用，为什么问卷里又不能恢复？","sourceSlides":[],"knowledgeBlock":null,"formulas":[],"previousBlock":"b-e26cd7b962f4506bd40f432f","nextBlock":null,"prerequisites":[{"id":"b-16e9a998bf3358d757da194e","url":"#b-16e9a998bf3358d757da194e","role":"section-title"},{"id":"b-e4c42798e4881e4edda6d86e","url":"#b-e4c42798e4881e4edda6d86e","role":"problem-context"}],"relatedBlocks":[]}]}