<rss xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title>遥感变化描述 - Tag - 堂堂一跑堂</title><link>https://spacetop.win/tags/%E9%81%A5%E6%84%9F%E5%8F%98%E5%8C%96%E6%8F%8F%E8%BF%B0/</link><description>遥感变化描述 - Tag - 堂堂一跑堂</description><generator>Hugo -- gohugo.io</generator><language>zh-CN</language><managingEditor>kingcopper@whu.edu.cn (WangTong)</managingEditor><webMaster>kingcopper@whu.edu.cn (WangTong)</webMaster><lastBuildDate>Mon, 01 Jun 2026 12:00:00 +0800</lastBuildDate><atom:link href="https://spacetop.win/tags/%E9%81%A5%E6%84%9F%E5%8F%98%E5%8C%96%E6%8F%8F%E8%BF%B0/" rel="self" type="application/rss+xml"/><item><title>RSCaMa：首次将Mamba引入遥感变化描述任务，实现高效时空建模</title><link>https://spacetop.win/2026/06/20260601_211500_rscama_change_captioning/</link><pubDate>Mon, 01 Jun 2026 12:00:00 +0800</pubDate><author><name>WangTong</name></author><guid>https://spacetop.win/2026/06/20260601_211500_rscama_change_captioning/</guid><description><![CDATA[<h1 id="rscama首次将mamba引入遥感变化描述任务实现高效时空建模" class="headerLink">
    <a href="#rscama%e9%a6%96%e6%ac%a1%e5%b0%86mamba%e5%bc%95%e5%85%a5%e9%81%a5%e6%84%9f%e5%8f%98%e5%8c%96%e6%8f%8f%e8%bf%b0%e4%bb%bb%e5%8a%a1%e5%ae%9e%e7%8e%b0%e9%ab%98%e6%95%88%e6%97%b6%e7%a9%ba%e5%bb%ba%e6%a8%a1" class="header-mark"></a>RSCaMa：首次将Mamba引入遥感变化描述任务，实现高效时空建模</h1><blockquote>
  <p><strong>论文解读</strong> | IEEE GRSL 2024 | ESI高被引论文</p>
</blockquote><h2 id="-论文信息" class="headerLink">
    <a href="#-%e8%ae%ba%e6%96%87%e4%bf%a1%e6%81%af" class="header-mark"></a>📄 论文信息</h2><table>
  <thead>
      <tr>
          <th>项目</th>
          <th>内容</th>
      </tr>
  </thead>
  <tbody>
      <tr>
          <td><strong>标题</strong></td>
          <td>RSCaMa: Remote Sensing Image Change Captioning with State Space Model</td>
      </tr>
      <tr>
          <td><strong>作者</strong></td>
          <td>Chen-Yang Liu et al.</td>
      </tr>
      <tr>
          <td><strong>会议</strong></td>
          <td>IEEE Geoscience and Remote Sensing Letters (GRSL) 2024</td>
      </tr>
      <tr>
          <td><strong>arXiv</strong></td>
          <td><a href="https://arxiv.org/abs/2405.13366" target="_blank" rel="noopener noreferrer">https://arxiv.org/abs/2405.13366</a></td>
      </tr>
      <tr>
          <td><strong>GitHub</strong></td>
          <td><a href="https://github.com/Chen-Yang-Liu/RSCaMa" target="_blank" rel="noopener noreferrer">https://github.com/Chen-Yang-Liu/RSCaMa</a></td>
      </tr>
      <tr>
          <td><strong>关键词</strong></td>
          <td>遥感变化描述、状态空间模型、Mamba、时序建模、多时相遥感</td>
      </tr>
  </tbody>
</table>
<h2 id="-解决的核心问题" class="headerLink">
    <a href="#-%e8%a7%a3%e5%86%b3%e7%9a%84%e6%a0%b8%e5%bf%83%e9%97%ae%e9%a2%98" class="header-mark"></a>🎯 解决的核心问题</h2><h3 id="问题背景" class="headerLink">
    <a href="#%e9%97%ae%e9%a2%98%e8%83%8c%e6%99%af" class="header-mark"></a>问题背景</h3><p>遥感图像变化描述（Remote Sensing Image Change Captioning, RSICC）是一项新兴的多模态任务，旨在<strong>用自然语言描述多时相遥感图像之间的地表变化</strong>。与传统的二元变化检测（仅判断&quot;变/不变&quot;）不同，RSICC需要输出更丰富的语义信息：</p>
<ul>
<li><strong>变化对象</strong>：建筑物、道路、植被等</li>
<li><strong>变化位置</strong>：在哪里发生了变化</li>
<li><strong>变化动态</strong>：是新增还是消失</li>
</ul>
<h3 id="现有方法的局限" class="headerLink">
    <a href="#%e7%8e%b0%e6%9c%89%e6%96%b9%e6%b3%95%e7%9a%84%e5%b1%80%e9%99%90" class="header-mark"></a>现有方法的局限</h3><ol>
<li><strong>CNN-based方法</strong>：感受野有限，难以捕获长距离时空依赖关系</li>
<li><strong>Transformer-based方法</strong>：自注意力机制的二次复杂度导致计算成本高昂，特别是在处理高分辨率遥感图像时</li>
<li><strong>时序建模不足</strong>：现有方法多采用简单的双分支结构，缺乏对时序信息的深度交互</li>
</ol>
<h3 id="核心问题提炼" class="headerLink">
    <a href="#%e6%a0%b8%e5%bf%83%e9%97%ae%e9%a2%98%e6%8f%90%e7%82%bc" class="header-mark"></a>核心问题提炼</h3><blockquote>
  <p><strong>如何在保持线性计算复杂度的同时，实现双时相遥感图像之间的深度时空交互，从而生成更准确的变化描述？</strong></p>
</blockquote><h2 id="-解决方案" class="headerLink">
    <a href="#-%e8%a7%a3%e5%86%b3%e6%96%b9%e6%a1%88" class="header-mark"></a>💡 解决方案</h2><h3 id="核心创新点1temporal-traversing-ssm-tt-ssm" class="headerLink">
    <a href="#%e6%a0%b8%e5%bf%83%e5%88%9b%e6%96%b0%e7%82%b91temporal-traversing-ssm-tt-ssm" class="header-mark"></a>核心创新点1：Temporal-Traversing SSM (TT-SSM)</h3><p><strong>设计动机</strong>：
Mamba架构的时间扫描特性与RSICC任务的时序需求存在天然契合。传统SSM采用单向扫描，无法充分利用双时相图像之间的交互信息。</p>
<p><strong>具体实现</strong>：
TT-SSM采用<strong>时间交叉扫描策略</strong>，让两个时相的特征在网络中&quot;交错前行&quot;：</p>
<div class="code-block highlight is-open show-line-numbers  tw-group tw-my-2">
  <div class="
    
    tw-flex 
    tw-flex-row
    tw-flex-1 
    tw-justify-between 
    tw-w-full tw-bg-bgColor-secondary
    ">      
    <button 
      class="
        code-block-button
        tw-mx-2 
        tw-flex
        tw-flex-row
        tw-flex-1"
      aria-hidden="true">
          <div class="group-[.is-open]:tw-rotate-90 tw-transition-[transform] tw-duration-500 tw-ease-in-out print:!tw-hidden tw-w-min tw-h-min tw-my-1 tw-mx-1"><svg class="icon"
    xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 512"><!-- Font Awesome Free 5.15.4 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) --><path d="M285.476 272.971L91.132 467.314c-9.373 9.373-24.569 9.373-33.941 0l-22.667-22.667c-9.357-9.357-9.375-24.522-.04-33.901L188.505 256 34.484 101.255c-9.335-9.379-9.317-24.544.04-33.901l22.667-22.667c9.373-9.373 24.569-9.373 33.941 0L285.475 239.03c9.373 9.372 9.373 24.568.001 33.941z"/></svg></div>
          <p class="tw-select-none !tw-my-1">text</p>]]></description></item></channel></rss>