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<p class="caption" role="heading"><span class="caption-text">Getting Started</span></p>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../../quickstart/installation.html">Installation</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../../quickstart/first_nerf.html">Training your first model</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../../quickstart/existing_dataset.html">Using existing data</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../../quickstart/custom_dataset.html">Using custom data</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../../quickstart/viewer_quickstart.html">Using the viewer</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../../quickstart/export_geometry.html">Export geometry</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../../quickstart/data_conventions.html">Data conventions</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../../reference/contributing.html">Contributing</a></li>
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</ul>
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<p class="caption" role="heading"><span class="caption-text">Extensions</span></p>
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||
<ul>
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||
<li class="toctree-l1"><a class="reference internal" href="../../extensions/blender_addon.html">Blender VFX add-on</a></li>
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||
<li class="toctree-l1"><a class="reference internal" href="../../extensions/maya_plugin.html">Autodesk Maya Plug-in</a></li>
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||
<li class="toctree-l1"><a class="reference internal" href="../../extensions/unreal_engine.html">Exporting to Unreal Engine</a></li>
|
||
<li class="toctree-l1"><a class="reference internal" href="../../extensions/sdfstudio.html">SDFStudio</a></li>
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||
</ul>
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<p class="caption" role="heading"><span class="caption-text">NeRFology</span></p>
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<ul>
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<li class="toctree-l1 has-children"><a class="reference internal" href="../../nerfology/methods/index.html">Methods</a><input class="toctree-checkbox" id="toctree-checkbox-1" name="toctree-checkbox-1" role="switch" type="checkbox"/><label for="toctree-checkbox-1"><div class="visually-hidden">Toggle child pages in navigation</div><i class="icon"><svg><use href="#svg-arrow-right"></use></svg></i></label><ul>
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<li class="toctree-l2"><a class="reference internal" href="../../nerfology/methods/instant_ngp.html"> Instant-NGP</a></li>
|
||
<li class="toctree-l2"><a class="reference internal" href="../../nerfology/methods/splat.html"> Splatfacto</a></li>
|
||
<li class="toctree-l2"><a class="reference internal" href="../../nerfology/methods/splatw.html"> Splatfacto-W</a></li>
|
||
<li class="toctree-l2"><a class="reference internal" href="../../nerfology/methods/in2n.html"> Instruct-NeRF2NeRF</a></li>
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||
<li class="toctree-l2"><a class="reference internal" href="../../nerfology/methods/igs2gs.html"> Instruct-GS2GS</a></li>
|
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<li class="toctree-l2"><a class="reference internal" href="../../nerfology/methods/signerf.html"> SIGNeRF</a></li>
|
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<li class="toctree-l2"><a class="reference internal" href="../../nerfology/methods/kplanes.html"> K-Planes</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../../nerfology/methods/lerf.html"> LERF</a></li>
|
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<li class="toctree-l2"><a class="reference internal" href="../../nerfology/methods/livescene.html"> LiveScene</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../../nerfology/methods/feature_splatting.html"> Feature-Splatting</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../../nerfology/methods/mipnerf.html"> Mip-NeRF</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../../nerfology/methods/nerf.html"> NeRF</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../../nerfology/methods/nerfacto.html"> Nerfacto</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../../nerfology/methods/nerfbusters.html"> Nerfbusters</a></li>
|
||
<li class="toctree-l2"><a class="reference internal" href="../../nerfology/methods/nerfplayer.html"> NeRFPlayer</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../../nerfology/methods/tetranerf.html"> Tetra-NeRF</a></li>
|
||
<li class="toctree-l2"><a class="reference internal" href="../../nerfology/methods/tensorf.html"> TensoRF</a></li>
|
||
<li class="toctree-l2"><a class="reference internal" href="../../nerfology/methods/generfacto.html"> Generfacto</a></li>
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||
<li class="toctree-l2"><a class="reference internal" href="../../nerfology/methods/pynerf.html"> PyNeRF</a></li>
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||
<li class="toctree-l2"><a class="reference internal" href="../../nerfology/methods/seathru_nerf.html"> SeaThru-NeRF</a></li>
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||
<li class="toctree-l2"><a class="reference internal" href="../../nerfology/methods/zipnerf.html"> Zip-NeRF</a></li>
|
||
<li class="toctree-l2"><a class="reference internal" href="../../nerfology/methods/bionerf.html"> BioNeRF</a></li>
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<section class="tex2jax_ignore mathjax_ignore" id="dataparsers">
|
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<h1>DataParsers<a class="headerlink" href="#dataparsers" title="Permalink to this heading">#</a></h1>
|
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<a class="only-light reference internal image-reference" href="../../_images/pipeline_parser-light.png"><img alt="../../_images/pipeline_parser-light.png" class="only-light align-center" src="../../_images/pipeline_parser-light.png" style="width: 600px;" /></a>
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<section id="what-is-a-dataparser">
|
||
<h2>What is a DataParser?<a class="headerlink" href="#what-is-a-dataparser" title="Permalink to this heading">#</a></h2>
|
||
<p>The dataparser returns <code class="docutils literal notranslate"><span class="pre">DataparserOutputs</span></code>, which puts all the various datasets into a common format. The DataparserOutputs should be lightweight, containing filenames or other meta information which can later be processed by actual PyTorch Datasets and Dataloaders. The common format makes it easy to add another DataParser. All you have to do is implement the private method <code class="docutils literal notranslate"><span class="pre">_generate_dataparser_outputs</span></code> shown below.</p>
|
||
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="nd">@dataclass</span>
|
||
<span class="k">class</span><span class="w"> </span><span class="nc">DataparserOutputs</span><span class="p">:</span>
|
||
<span class="w"> </span><span class="sd">"""Dataparser outputs for the which will be used by the DataManager</span>
|
||
<span class="sd"> for creating RayBundle and RayGT objects."""</span>
|
||
|
||
<span class="n">image_filenames</span><span class="p">:</span> <span class="n">List</span><span class="p">[</span><span class="n">Path</span><span class="p">]</span>
|
||
<span class="w"> </span><span class="sd">"""Filenames for the images."""</span>
|
||
<span class="n">cameras</span><span class="p">:</span> <span class="n">Cameras</span>
|
||
<span class="w"> </span><span class="sd">"""Camera object storing collection of camera information in dataset."""</span>
|
||
<span class="n">alpha_color</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="n">TensorType</span><span class="p">[</span><span class="mi">3</span><span class="p">]]</span> <span class="o">=</span> <span class="kc">None</span>
|
||
<span class="w"> </span><span class="sd">"""Color of dataset background."""</span>
|
||
<span class="n">scene_box</span><span class="p">:</span> <span class="n">SceneBox</span> <span class="o">=</span> <span class="n">SceneBox</span><span class="p">()</span>
|
||
<span class="w"> </span><span class="sd">"""Scene box of dataset. Used to bound the scene or provide the scene scale depending on model."""</span>
|
||
<span class="n">mask_filenames</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="n">List</span><span class="p">[</span><span class="n">Path</span><span class="p">]]</span> <span class="o">=</span> <span class="kc">None</span>
|
||
<span class="w"> </span><span class="sd">"""Filenames for any masks that are required"""</span>
|
||
<span class="n">metadata</span><span class="p">:</span> <span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Any</span><span class="p">]</span> <span class="o">=</span> <span class="n">to_immutable_dict</span><span class="p">({})</span>
|
||
<span class="w"> </span><span class="sd">"""Dictionary of any metadata that be required for the given experiment.</span>
|
||
<span class="sd"> Will be processed by the InputDataset to create any additional tensors that may be required.</span>
|
||
<span class="sd"> """</span>
|
||
<span class="n">dataparser_transform</span><span class="p">:</span> <span class="n">TensorType</span><span class="p">[</span><span class="mi">3</span><span class="p">,</span> <span class="mi">4</span><span class="p">]</span> <span class="o">=</span> <span class="n">torch</span><span class="o">.</span><span class="n">eye</span><span class="p">(</span><span class="mi">4</span><span class="p">)[:</span><span class="mi">3</span><span class="p">,</span> <span class="p">:]</span>
|
||
<span class="w"> </span><span class="sd">"""Transform applied by the dataparser."""</span>
|
||
<span class="n">dataparser_scale</span><span class="p">:</span> <span class="nb">float</span> <span class="o">=</span> <span class="mf">1.0</span>
|
||
<span class="w"> </span><span class="sd">"""Scale applied by the dataparser."""</span>
|
||
|
||
<span class="nd">@dataclass</span>
|
||
<span class="k">class</span><span class="w"> </span><span class="nc">DataParser</span><span class="p">:</span>
|
||
|
||
<span class="nd">@abstractmethod</span>
|
||
<span class="k">def</span><span class="w"> </span><span class="nf">_generate_dataparser_outputs</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">split</span><span class="p">:</span> <span class="nb">str</span> <span class="o">=</span> <span class="s2">"train"</span><span class="p">)</span> <span class="o">-></span> <span class="n">DataparserOutputs</span><span class="p">:</span>
|
||
<span class="w"> </span><span class="sd">"""Abstract method that returns the dataparser outputs for the given split.</span>
|
||
|
||
<span class="sd"> Args:</span>
|
||
<span class="sd"> split: Which dataset split to generate (train/test).</span>
|
||
|
||
<span class="sd"> Returns:</span>
|
||
<span class="sd"> DataparserOutputs containing data for the specified dataset and split</span>
|
||
<span class="sd"> """</span>
|
||
</pre></div>
|
||
</div>
|
||
</section>
|
||
<section id="example">
|
||
<h2>Example<a class="headerlink" href="#example" title="Permalink to this heading">#</a></h2>
|
||
<p>Here is an example where we implement a DataParser for our Nerfstudio data format.</p>
|
||
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="nd">@dataclass</span>
|
||
<span class="k">class</span><span class="w"> </span><span class="nc">NerfstudioDataParserConfig</span><span class="p">(</span><span class="n">DataParserConfig</span><span class="p">):</span>
|
||
<span class="w"> </span><span class="sd">"""Nerfstudio dataset config"""</span>
|
||
|
||
<span class="n">_target</span><span class="p">:</span> <span class="n">Type</span> <span class="o">=</span> <span class="n">field</span><span class="p">(</span><span class="n">default_factory</span><span class="o">=</span><span class="k">lambda</span><span class="p">:</span> <span class="n">Nerfstudio</span><span class="p">)</span>
|
||
<span class="w"> </span><span class="sd">"""target class to instantiate"""</span>
|
||
<span class="n">data</span><span class="p">:</span> <span class="n">Path</span> <span class="o">=</span> <span class="n">Path</span><span class="p">(</span><span class="s2">"data/nerfstudio/poster"</span><span class="p">)</span>
|
||
<span class="w"> </span><span class="sd">"""Directory specifying location of data."""</span>
|
||
<span class="n">scale_factor</span><span class="p">:</span> <span class="nb">float</span> <span class="o">=</span> <span class="mf">1.0</span>
|
||
<span class="w"> </span><span class="sd">"""How much to scale the camera origins by."""</span>
|
||
<span class="n">downscale_factor</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="nb">int</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span>
|
||
<span class="w"> </span><span class="sd">"""How much to downscale images. If not set, images are chosen such that the max dimension is <1600px."""</span>
|
||
<span class="n">scene_scale</span><span class="p">:</span> <span class="nb">float</span> <span class="o">=</span> <span class="mf">1.0</span>
|
||
<span class="w"> </span><span class="sd">"""How much to scale the region of interest by."""</span>
|
||
<span class="n">orientation_method</span><span class="p">:</span> <span class="n">Literal</span><span class="p">[</span><span class="s2">"pca"</span><span class="p">,</span> <span class="s2">"up"</span><span class="p">,</span> <span class="s2">"vertical"</span><span class="p">,</span> <span class="s2">"none"</span><span class="p">]</span> <span class="o">=</span> <span class="s2">"up"</span>
|
||
<span class="w"> </span><span class="sd">"""The method to use for orientation."""</span>
|
||
<span class="n">center_method</span><span class="p">:</span> <span class="n">Literal</span><span class="p">[</span><span class="s2">"poses"</span><span class="p">,</span> <span class="s2">"focus"</span><span class="p">,</span> <span class="s2">"none"</span><span class="p">]</span> <span class="o">=</span> <span class="s2">"poses"</span>
|
||
<span class="w"> </span><span class="sd">"""The method to use to center the poses."""</span>
|
||
<span class="n">auto_scale_poses</span><span class="p">:</span> <span class="nb">bool</span> <span class="o">=</span> <span class="kc">True</span>
|
||
<span class="w"> </span><span class="sd">"""Whether to automatically scale the poses to fit in +/- 1 bounding box."""</span>
|
||
<span class="n">train_split_fraction</span><span class="p">:</span> <span class="nb">float</span> <span class="o">=</span> <span class="mf">0.9</span>
|
||
<span class="w"> </span><span class="sd">"""The fraction of images to use for training. The remaining images are for eval."""</span>
|
||
<span class="n">depth_unit_scale_factor</span><span class="p">:</span> <span class="nb">float</span> <span class="o">=</span> <span class="mf">1e-3</span>
|
||
<span class="w"> </span><span class="sd">"""Scales the depth values to meters. Default value is 0.001 for a millimeter to meter conversion."""</span>
|
||
|
||
<span class="nd">@dataclass</span>
|
||
<span class="k">class</span><span class="w"> </span><span class="nc">Nerfstudio</span><span class="p">(</span><span class="n">DataParser</span><span class="p">):</span>
|
||
<span class="w"> </span><span class="sd">"""Nerfstudio DatasetParser"""</span>
|
||
|
||
<span class="n">config</span><span class="p">:</span> <span class="n">NerfstudioDataParserConfig</span>
|
||
|
||
<span class="k">def</span><span class="w"> </span><span class="nf">_generate_dataparser_outputs</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">split</span><span class="o">=</span><span class="s2">"train"</span><span class="p">):</span>
|
||
<span class="n">meta</span> <span class="o">=</span> <span class="n">load_from_json</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">config</span><span class="o">.</span><span class="n">data</span> <span class="o">/</span> <span class="s2">"transforms.json"</span><span class="p">)</span>
|
||
<span class="n">image_filenames</span> <span class="o">=</span> <span class="p">[]</span>
|
||
<span class="n">poses</span> <span class="o">=</span> <span class="p">[]</span>
|
||
<span class="o">...</span>
|
||
<span class="n">dataparser_outputs</span> <span class="o">=</span> <span class="n">DataparserOutputs</span><span class="p">(</span>
|
||
<span class="n">image_filenames</span><span class="o">=</span><span class="n">image_filenames</span><span class="p">,</span>
|
||
<span class="n">cameras</span><span class="o">=</span><span class="n">cameras</span><span class="p">,</span>
|
||
<span class="n">scene_box</span><span class="o">=</span><span class="n">scene_box</span><span class="p">,</span>
|
||
<span class="p">)</span>
|
||
<span class="k">return</span> <span class="n">dataparser_outputs</span>
|
||
</pre></div>
|
||
</div>
|
||
</section>
|
||
<section id="train-and-eval-logic">
|
||
<h2>Train and Eval Logic<a class="headerlink" href="#train-and-eval-logic" title="Permalink to this heading">#</a></h2>
|
||
<p>The DataParser will generate a train and eval DataparserOutputs depending on the <code class="docutils literal notranslate"><span class="pre">split</span></code> argument. For example, here is how you’d initialize some <code class="docutils literal notranslate"><span class="pre">InputDataset</span></code> classes that live in the DataManager. Because our DataparserOutputs maintain a common form, our Datasets should be plug-and-play. These datasets will load images needed to supervise the model with <code class="docutils literal notranslate"><span class="pre">RayGT</span></code> objects.</p>
|
||
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="n">config</span> <span class="o">=</span> <span class="n">NerfstudioDataParserConfig</span><span class="p">()</span>
|
||
<span class="n">dataparser</span> <span class="o">=</span> <span class="n">config</span><span class="o">.</span><span class="n">setup</span><span class="p">()</span>
|
||
<span class="c1"># train dataparser</span>
|
||
<span class="n">dataparser_outputs</span> <span class="o">=</span> <span class="n">dataparser</span><span class="o">.</span><span class="n">get_dataparser_outputs</span><span class="p">(</span><span class="n">split</span><span class="o">=</span><span class="s2">"train"</span><span class="p">)</span>
|
||
<span class="n">input_dataset</span> <span class="o">=</span> <span class="n">InputDataset</span><span class="p">(</span><span class="n">dataparser_outputs</span><span class="p">)</span>
|
||
</pre></div>
|
||
</div>
|
||
<p>You can also pull out information from the DataParserOutputs for other DataManager components, such as the RayGenerator. The RayGenerator generates RayBundle objects from camera and pixel indices.</p>
|
||
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="n">ray_generator</span> <span class="o">=</span> <span class="n">RayGenerator</span><span class="p">(</span><span class="n">dataparser_outputs</span><span class="o">.</span><span class="n">cameras</span><span class="p">)</span>
|
||
</pre></div>
|
||
</div>
|
||
</section>
|
||
<section id="included-dataparsers">
|
||
<h2>Included DataParsers<a class="headerlink" href="#included-dataparsers" title="Permalink to this heading">#</a></h2>
|
||
<div class="toctree-wrapper compound">
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../../reference/api/data/dataparsers.html">Data Parsers</a><ul>
|
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<li class="toctree-l2"><a class="reference internal" href="../../reference/api/data/dataparsers.html#base-data-parser">Base Data Parser</a></li>
|
||
<li class="toctree-l2"><a class="reference internal" href="../../reference/api/data/dataparsers.html#arkitscenes">ARKitScenes</a></li>
|
||
<li class="toctree-l2"><a class="reference internal" href="../../reference/api/data/dataparsers.html#blender">Blender</a></li>
|
||
<li class="toctree-l2"><a class="reference internal" href="../../reference/api/data/dataparsers.html#d-nerf">D-NeRF</a></li>
|
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<li class="toctree-l2"><a class="reference internal" href="../../reference/api/data/dataparsers.html#dycheck">dycheck</a></li>
|
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<li class="toctree-l2"><a class="reference internal" href="../../reference/api/data/dataparsers.html#instant-ngp">Instant-NGP</a></li>
|
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<li class="toctree-l2"><a class="reference internal" href="../../reference/api/data/dataparsers.html#minimal">Minimal</a></li>
|
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<li class="toctree-l2"><a class="reference internal" href="../../reference/api/data/dataparsers.html#nerf-osr">NeRF-OSR</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../../reference/api/data/dataparsers.html#nerfstudio">Nerfstudio</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../../reference/api/data/dataparsers.html#nuscenes">nuScenes</a></li>
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|
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<li class="toctree-l2"><a class="reference internal" href="../../reference/api/data/dataparsers.html#scannet">ScanNet</a></li>
|
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<li class="toctree-l2"><a class="reference internal" href="../../reference/api/data/dataparsers.html#sdfstudio">SDFStudio</a></li>
|
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<li class="toctree-l2"><a class="reference internal" href="../../reference/api/data/dataparsers.html#sitcoms3d">sitcoms3D</a></li>
|
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</ul>
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<ul>
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<li><a class="reference internal" href="#">DataParsers</a><ul>
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<li><a class="reference internal" href="#what-is-a-dataparser">What is a DataParser?</a></li>
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<li><a class="reference internal" href="#example">Example</a></li>
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<li><a class="reference internal" href="#train-and-eval-logic">Train and Eval Logic</a></li>
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<li><a class="reference internal" href="#included-dataparsers">Included DataParsers</a></li>
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