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<li class="toctree-l1 current"><a class="reference internal" href="../">Options et indicateurs</a><ul class="current">
<li class="toctree-l2 current"><a class="current reference internal" href="#">auto-boundary</a><ul>
<li class="toctree-l3"><a class="reference internal" href="#what-is-auto-boundary">What Is Auto-Boundary?</a></li>
<li class="toctree-l3"><a class="reference internal" href="#when-is-auto-boundary-helpful">When Is Auto-Boundary Helpful?</a></li>
<li class="toctree-l3"><a class="reference internal" href="#why-would-one-use-auto-boundary">Why would one use auto-boundary?</a></li>
<li class="toctree-l3"><a class="reference internal" href="#example-images">Example Images</a><ul>
<li class="toctree-l4"><a class="reference internal" href="#true-auto-boundary">True: <code class="docutils literal notranslate"><span class="pre">--auto-boundary</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="#false-null">False: <code class="docutils literal notranslate"><span class="pre">null</span></code></a></li>
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<li class="toctree-l2"><a class="reference internal" href="../boundary/">boundary</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../boundary/#what-is-boundary-geojson">What is Boundary [GeoJSON]?</a></li>
<li class="toctree-l3"><a class="reference internal" href="../boundary/#when-is-boundary-geojson-appropriate">When is Boundary [GeoJSON] appropriate?</a></li>
<li class="toctree-l3"><a class="reference internal" href="../boundary/#why-would-one-use-boundary-geojson">Why would one use Boundary [GeoJSON]?</a></li>
<li class="toctree-l3"><a class="reference internal" href="../boundary/#how-would-one-create-boundary-geojson">How would one create Boundary [GeoJSON]?</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../boundary/#geojson-io">GeoJSON.io</a></li>
<li class="toctree-l4"><a class="reference internal" href="../boundary/#qgis">QGIS</a></li>
</ul>
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<li class="toctree-l3"><a class="reference internal" href="../boundary/#example-images">Example Images</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../boundary/#true-boundary-geojson-point-cloud">True: <code class="docutils literal notranslate"><span class="pre">--boundary</span> <span class="pre">[GeoJSON]</span></code> - Point Cloud</a></li>
<li class="toctree-l4"><a class="reference internal" href="../boundary/#true-boundary-geojson-orthophoto">True: <code class="docutils literal notranslate"><span class="pre">--boundary</span> <span class="pre">[GeoJSON]</span></code> - Orthophoto</a></li>
<li class="toctree-l4"><a class="reference internal" href="../boundary/#true-boundary-geojson-digital-elevation-model">True: <code class="docutils literal notranslate"><span class="pre">--boundary</span> <span class="pre">[GeoJSON]</span></code> - Digital Elevation Model</a></li>
<li class="toctree-l4"><a class="reference internal" href="../boundary/#true-boundary-geojson-3d-model-textured-mesh">True: <code class="docutils literal notranslate"><span class="pre">--boundary</span> <span class="pre">[GeoJSON]</span></code> - 3D Model/Textured Mesh</a></li>
<li class="toctree-l4"><a class="reference internal" href="../boundary/#false-null">False: <code class="docutils literal notranslate"><span class="pre">null</span></code></a></li>
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<li class="toctree-l4"><a class="reference internal" href="../build-overviews/#true-build-overviews">True: <code class="docutils literal notranslate"><span class="pre">--build-overviews</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="../build-overviews/#false-null">False: <code class="docutils literal notranslate"><span class="pre">null</span></code></a></li>
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<li class="toctree-l4"><a class="reference internal" href="../camera-lens/#auto-rectilinear-data"><code class="docutils literal notranslate"><span class="pre">auto</span></code> : Rectilinear Data</a></li>
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<li class="toctree-l4"><a class="reference internal" href="../camera-lens/#perspective-rectilinear-data"><code class="docutils literal notranslate"><span class="pre">perspective</span></code> : Rectilinear Data</a></li>
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<li class="toctree-l3"><a class="reference internal" href="../cog/#example-images">Example Images</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../cog/#true-cog">True: <code class="docutils literal notranslate"><span class="pre">--cog</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="../cog/#false-null">False: <code class="docutils literal notranslate"><span class="pre">null</span></code></a></li>
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<section id="auto-boundary">
<span id="id1"></span><h1>auto-boundary<a class="headerlink" href="#auto-boundary" title="Lien permanent vers ce titre"></a></h1>
<p>Automatically set a boundary using camera shot locations to limit the area of the reconstruction. This can help remove far away background artifacts (sky, background landscapes, etc.). See also –boundary. Default: <code class="docutils literal notranslate"><span class="pre">False</span></code></p>
<div class="line-block">
<div class="line">Parameter Type:</div>
<div class="line-block">
<div class="line"><strong>Boolean</strong></div>
</div>
<div class="line">Parameter Domain:</div>
<div class="line-block">
<div class="line">True: <code class="docutils literal notranslate"><span class="pre">--auto-boundary</span></code></div>
<div class="line">False: <code class="docutils literal notranslate"><span class="pre">null</span></code></div>
</div>
<div class="line">Parameter Default:</div>
<div class="line-block">
<div class="line">False: <code class="docutils literal notranslate"><span class="pre">null</span></code></div>
</div>
</div>
<hr class="docutils" />
<table class="docutils align-default">
<colgroup>
<col style="width: 44%" />
<col style="width: 56%" />
</colgroup>
<thead>
<tr class="row-odd"><th class="head"><p>Resource</p></th>
<th class="head"><p>Impact</p></th>
</tr>
</thead>
<tbody>
<tr class="row-even"><td><p>CPU</p></td>
<td><p>●○○ | Low</p></td>
</tr>
<tr class="row-odd"><td><p>GPU</p></td>
<td><p>○○○ | None</p></td>
</tr>
<tr class="row-even"><td><p>HDD</p></td>
<td><p>○○○ | None</p></td>
</tr>
<tr class="row-odd"><td><p>RAM</p></td>
<td><p>●○○ | Low</p></td>
</tr>
<tr class="row-even"><td><p>Time</p></td>
<td><p>●○○ | Low</p></td>
</tr>
</tbody>
</table>
<hr class="docutils" />
<section id="what-is-auto-boundary">
<h2>What Is Auto-Boundary?<a class="headerlink" href="#what-is-auto-boundary" title="Lien permanent vers ce titre"></a></h2>
<p><code class="docutils literal notranslate"><span class="pre">--auto-boundary</span></code> is a process that seeks to limit the boundaries of the reconstruction based upon a K-Means filtered Convex Hull buffered by 20x the mean GSD of the dataset.</p>
</section>
<section id="when-is-auto-boundary-helpful">
<h2>When Is Auto-Boundary Helpful?<a class="headerlink" href="#when-is-auto-boundary-helpful" title="Lien permanent vers ce titre"></a></h2>
<p><code class="docutils literal notranslate"><span class="pre">--auto-boundary</span></code> is appropriate to use on any dataset where one might possibly consider limiting the area of reconstruction due to the presence of sky or far-away background that they would not normally consider part of the desired reconstruction.</p>
<p><code class="docutils literal notranslate"><span class="pre">--auto-boundary</span></code> does not have a meaningful impact on nadir (or near-nadir) imagery without sky/background, making it superflous, but safe, to include.</p>
<p>In other words, if you would consider masking the image, <code class="docutils literal notranslate"><span class="pre">--auto-boundary</span></code> is likely a good choice.</p>
</section>
<section id="why-would-one-use-auto-boundary">
<h2>Why would one use auto-boundary?<a class="headerlink" href="#why-would-one-use-auto-boundary" title="Lien permanent vers ce titre"></a></h2>
<p>Auto-Boundary is most helpful in preventing the reconstruction area from growing needlessly large when things like sky, clouds, or far-away features like treelines get included in the reconstruction.</p>
<p>By preventing the boundaries of the reconstruction from growing needlessly large, Out-Of-Memory errors become far less likely, and one will likely see a decrease in processing time due to the smaller area being reconstructed.</p>
</section>
<section id="example-images">
<h2>Example Images<a class="headerlink" href="#example-images" title="Lien permanent vers ce titre"></a></h2>
<section id="true-auto-boundary">
<h3>True: <code class="docutils literal notranslate"><span class="pre">--auto-boundary</span></code><a class="headerlink" href="#true-auto-boundary" title="Lien permanent vers ce titre"></a></h3>
<figure class="align-default" id="id2">
<img alt="WebODM displaying the reconstruction extent of a terrestrial orbit survey of a Northern Catalpa tree." src="https://user-images.githubusercontent.com/19295950/140864618-2a0c95f2-669e-45dc-b5c5-df82a555e4e5.png" />
<figcaption>
<p><span class="caption-text">The WebODM 3D View shows the full extent of the reconstruction, bounded by the <code class="docutils literal notranslate"><span class="pre">--auto-boundary</span></code> option.</span><a class="headerlink" href="#id2" title="Lien permanent vers cette image"></a></p>
</figcaption>
</figure>
</section>
<section id="false-null">
<h3>False: <code class="docutils literal notranslate"><span class="pre">null</span></code><a class="headerlink" href="#false-null" title="Lien permanent vers ce titre"></a></h3>
<figure class="align-default" id="id3">
<img alt="WebODM displaying the reconstruction extent of a terrestrial orbit survey of a Northern Catalpa tree." src="https://user-images.githubusercontent.com/19295950/140864753-db3695c5-3ba2-48fb-a644-3e591913de72.png" />
<figcaption>
<p><span class="caption-text">The WebODM 3D View shows the full extent of the recosntruction. Compared to the <code class="docutils literal notranslate"><span class="pre">--auto-boundary</span></code> reconstruction above, one can see that the full reconstruction area is much larger (and therefore more visually sparse).</span><a class="headerlink" href="#id3" title="Lien permanent vers cette image"></a></p>
</figcaption>
</figure>
<p><a class="reference external" href="https://github.com/opendronemap/docs#how-to-make-your-first-contribution">Learn to edit</a> and help improve <a class="reference external" href="https://github.com/OpenDroneMap/docs/blob/publish/source/arguments_edit/auto-boundary.rst">this page</a>!</p>
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