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<article role="main">
<section id="field-heads">
<span id="id1"></span><h1>Field Heads<a class="headerlink" href="#field-heads" title="Permalink to this heading">#</a></h1>
<p>Collection of render heads</p>
<span class="target" id="module-nerfstudio.field_components.field_heads"></span><dl class="py class">
<dt class="sig sig-object py" id="nerfstudio.field_components.field_heads.DensityFieldHead">
<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">nerfstudio.field_components.field_heads.</span></span><span class="sig-name descname"><span class="pre">DensityFieldHead</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">in_dim</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">int</span><span class="p"><span class="pre">]</span></span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">activation</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">Module</span><span class="p"><span class="pre">]</span></span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">Softplus(beta=1.0,</span> <span class="pre">threshold=20.0)</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="../../../_modules/nerfstudio/field_components/field_heads.html#DensityFieldHead"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#nerfstudio.field_components.field_heads.DensityFieldHead" title="Permalink to this definition">#</a></dt>
<dd><p>Bases: <a class="reference internal" href="#nerfstudio.field_components.field_heads.FieldHead" title="nerfstudio.field_components.field_heads.FieldHead"><code class="xref py py-class docutils literal notranslate"><span class="pre">FieldHead</span></code></a></p>
<p>Density output</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters<span class="colon">:</span></dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>in_dim</strong> – input dimension. If not defined in constructor, it must be set later.</p></li>
<li><p><strong>activation</strong> – output head activation</p></li>
</ul>
</dd>
</dl>
</dd></dl>
<dl class="py class">
<dt class="sig sig-object py" id="nerfstudio.field_components.field_heads.FieldHead">
<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">nerfstudio.field_components.field_heads.</span></span><span class="sig-name descname"><span class="pre">FieldHead</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">out_dim</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">int</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">field_head_name</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference internal" href="#nerfstudio.field_components.field_heads.FieldHeadNames" title="nerfstudio.field_components.field_heads.FieldHeadNames"><span class="pre">FieldHeadNames</span></a></span></em>, <em class="sig-param"><span class="n"><span class="pre">in_dim</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">int</span><span class="p"><span class="pre">]</span></span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">activation</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">Union</span><span class="p"><span class="pre">[</span></span><span class="pre">Module</span><span class="p"><span class="pre">,</span></span><span class="w"> </span><span class="pre">Callable</span><span class="p"><span class="pre">]</span></span><span class="p"><span class="pre">]</span></span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="../../../_modules/nerfstudio/field_components/field_heads.html#FieldHead"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#nerfstudio.field_components.field_heads.FieldHead" title="Permalink to this definition">#</a></dt>
<dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">FieldComponent</span></code></p>
<p>Base field output</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters<span class="colon">:</span></dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>out_dim</strong> – output dimension for renderer</p></li>
<li><p><strong>field_head_name</strong> – Field type</p></li>
<li><p><strong>in_dim</strong> – input dimension. If not defined in constructor, it must be set later.</p></li>
<li><p><strong>activation</strong> – output head activation</p></li>
</ul>
</dd>
</dl>
<dl class="py method">
<dt class="sig sig-object py" id="nerfstudio.field_components.field_heads.FieldHead.forward">
<span class="sig-name descname"><span class="pre">forward</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">in_tensor</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Shaped</span><span class="p"><span class="pre">[</span></span><span class="pre">Tensor</span><span class="p"><span class="pre">,</span></span><span class="w"> </span><span class="s"><span class="pre">'*bs</span> <span class="pre">in_dim'</span></span><span class="p"><span class="pre">]</span></span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">Shaped</span><span class="p"><span class="pre">[</span></span><span class="pre">Tensor</span><span class="p"><span class="pre">,</span></span><span class="w"> </span><span class="s"><span class="pre">'*bs</span> <span class="pre">out_dim'</span></span><span class="p"><span class="pre">]</span></span></span></span><a class="reference internal" href="../../../_modules/nerfstudio/field_components/field_heads.html#FieldHead.forward"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#nerfstudio.field_components.field_heads.FieldHead.forward" title="Permalink to this definition">#</a></dt>
<dd><p>Process network output for renderer</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters<span class="colon">:</span></dt>
<dd class="field-odd"><p><strong>in_tensor</strong> – Network input</p>
</dd>
<dt class="field-even">Returns<span class="colon">:</span></dt>
<dd class="field-even"><p>Render head output</p>
</dd>
</dl>
</dd></dl>
<dl class="py method">
<dt class="sig sig-object py" id="nerfstudio.field_components.field_heads.FieldHead.set_in_dim">
<span class="sig-name descname"><span class="pre">set_in_dim</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">in_dim</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">int</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">None</span></span></span><a class="reference internal" href="../../../_modules/nerfstudio/field_components/field_heads.html#FieldHead.set_in_dim"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#nerfstudio.field_components.field_heads.FieldHead.set_in_dim" title="Permalink to this definition">#</a></dt>
<dd><p>Set input dimension of Field Head</p>
</dd></dl>
</dd></dl>
<dl class="py class">
<dt class="sig sig-object py" id="nerfstudio.field_components.field_heads.FieldHeadNames">
<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">nerfstudio.field_components.field_heads.</span></span><span class="sig-name descname"><span class="pre">FieldHeadNames</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">value</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="../../../_modules/nerfstudio/field_components/field_heads.html#FieldHeadNames"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#nerfstudio.field_components.field_heads.FieldHeadNames" title="Permalink to this definition">#</a></dt>
<dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">Enum</span></code></p>
<p>Possible field outputs</p>
</dd></dl>
<dl class="py class">
<dt class="sig sig-object py" id="nerfstudio.field_components.field_heads.PredNormalsFieldHead">
<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">nerfstudio.field_components.field_heads.</span></span><span class="sig-name descname"><span class="pre">PredNormalsFieldHead</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">in_dim</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">int</span><span class="p"><span class="pre">]</span></span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">activation</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">Module</span><span class="p"><span class="pre">]</span></span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">Tanh()</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="../../../_modules/nerfstudio/field_components/field_heads.html#PredNormalsFieldHead"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#nerfstudio.field_components.field_heads.PredNormalsFieldHead" title="Permalink to this definition">#</a></dt>
<dd><p>Bases: <a class="reference internal" href="#nerfstudio.field_components.field_heads.FieldHead" title="nerfstudio.field_components.field_heads.FieldHead"><code class="xref py py-class docutils literal notranslate"><span class="pre">FieldHead</span></code></a></p>
<p>Predicted normals output.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters<span class="colon">:</span></dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>in_dim</strong> – input dimension. If not defined in constructor, it must be set later.</p></li>
<li><p><strong>activation</strong> – output head activation</p></li>
</ul>
</dd>
</dl>
<dl class="py method">
<dt class="sig sig-object py" id="nerfstudio.field_components.field_heads.PredNormalsFieldHead.forward">
<span class="sig-name descname"><span class="pre">forward</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">in_tensor</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Float</span><span class="p"><span class="pre">[</span></span><span class="pre">Tensor</span><span class="p"><span class="pre">,</span></span><span class="w"> </span><span class="s"><span class="pre">'*bs</span> <span class="pre">in_dim'</span></span><span class="p"><span class="pre">]</span></span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><span class="pre">Float</span><span class="p"><span class="pre">[</span></span><span class="pre">Tensor</span><span class="p"><span class="pre">,</span></span><span class="w"> </span><span class="s"><span class="pre">'*bs</span> <span class="pre">out_dim'</span></span><span class="p"><span class="pre">]</span></span></span></span><a class="reference internal" href="../../../_modules/nerfstudio/field_components/field_heads.html#PredNormalsFieldHead.forward"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#nerfstudio.field_components.field_heads.PredNormalsFieldHead.forward" title="Permalink to this definition">#</a></dt>
<dd><p>Needed to normalize the output into valid normals.</p>
</dd></dl>
</dd></dl>
<dl class="py class">
<dt class="sig sig-object py" id="nerfstudio.field_components.field_heads.RGBFieldHead">
<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">nerfstudio.field_components.field_heads.</span></span><span class="sig-name descname"><span class="pre">RGBFieldHead</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">in_dim</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">int</span><span class="p"><span class="pre">]</span></span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">activation</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">Module</span><span class="p"><span class="pre">]</span></span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">Sigmoid()</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="../../../_modules/nerfstudio/field_components/field_heads.html#RGBFieldHead"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#nerfstudio.field_components.field_heads.RGBFieldHead" title="Permalink to this definition">#</a></dt>
<dd><p>Bases: <a class="reference internal" href="#nerfstudio.field_components.field_heads.FieldHead" title="nerfstudio.field_components.field_heads.FieldHead"><code class="xref py py-class docutils literal notranslate"><span class="pre">FieldHead</span></code></a></p>
<p>RGB output</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters<span class="colon">:</span></dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>in_dim</strong> – input dimension. If not defined in constructor, it must be set later.</p></li>
<li><p><strong>activation</strong> – output head activation</p></li>
</ul>
</dd>
</dl>
</dd></dl>
<dl class="py class">
<dt class="sig sig-object py" id="nerfstudio.field_components.field_heads.SHFieldHead">
<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">nerfstudio.field_components.field_heads.</span></span><span class="sig-name descname"><span class="pre">SHFieldHead</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">in_dim</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">int</span><span class="p"><span class="pre">]</span></span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">levels</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">int</span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">3</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">channels</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">int</span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">3</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">activation</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">Module</span><span class="p"><span class="pre">]</span></span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="../../../_modules/nerfstudio/field_components/field_heads.html#SHFieldHead"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#nerfstudio.field_components.field_heads.SHFieldHead" title="Permalink to this definition">#</a></dt>
<dd><p>Bases: <a class="reference internal" href="#nerfstudio.field_components.field_heads.FieldHead" title="nerfstudio.field_components.field_heads.FieldHead"><code class="xref py py-class docutils literal notranslate"><span class="pre">FieldHead</span></code></a></p>
<p>Spherical harmonics output</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters<span class="colon">:</span></dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>in_dim</strong> – input dimension. If not defined in constructor, it must be set later.</p></li>
<li><p><strong>levels</strong> – Number of spherical harmonics layers.</p></li>
<li><p><strong>channels</strong> – Number of channels. Defaults to 3 (ie RGB).</p></li>
<li><p><strong>activation</strong> – Output activation.</p></li>
</ul>
</dd>
</dl>
</dd></dl>
<dl class="py class">
<dt class="sig sig-object py" id="nerfstudio.field_components.field_heads.SemanticFieldHead">
<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">nerfstudio.field_components.field_heads.</span></span><span class="sig-name descname"><span class="pre">SemanticFieldHead</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">num_classes</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">int</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">in_dim</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">int</span><span class="p"><span class="pre">]</span></span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="../../../_modules/nerfstudio/field_components/field_heads.html#SemanticFieldHead"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#nerfstudio.field_components.field_heads.SemanticFieldHead" title="Permalink to this definition">#</a></dt>
<dd><p>Bases: <a class="reference internal" href="#nerfstudio.field_components.field_heads.FieldHead" title="nerfstudio.field_components.field_heads.FieldHead"><code class="xref py py-class docutils literal notranslate"><span class="pre">FieldHead</span></code></a></p>
<p>Semantic output</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters<span class="colon">:</span></dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>num_classes</strong> – Number of semantic classes</p></li>
<li><p><strong>in_dim</strong> – input dimension. If not defined in constructor, it must be set later.</p></li>
<li><p><strong>activation</strong> – output head activation</p></li>
</ul>
</dd>
</dl>
</dd></dl>
<dl class="py class">
<dt class="sig sig-object py" id="nerfstudio.field_components.field_heads.TransientDensityFieldHead">
<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">nerfstudio.field_components.field_heads.</span></span><span class="sig-name descname"><span class="pre">TransientDensityFieldHead</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">in_dim</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">int</span><span class="p"><span class="pre">]</span></span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">activation</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">Module</span><span class="p"><span class="pre">]</span></span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">Softplus(beta=1.0,</span> <span class="pre">threshold=20.0)</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="../../../_modules/nerfstudio/field_components/field_heads.html#TransientDensityFieldHead"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#nerfstudio.field_components.field_heads.TransientDensityFieldHead" title="Permalink to this definition">#</a></dt>
<dd><p>Bases: <a class="reference internal" href="#nerfstudio.field_components.field_heads.FieldHead" title="nerfstudio.field_components.field_heads.FieldHead"><code class="xref py py-class docutils literal notranslate"><span class="pre">FieldHead</span></code></a></p>
<p>Transient density output</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters<span class="colon">:</span></dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>in_dim</strong> – input dimension. If not defined in constructor, it must be set later.</p></li>
<li><p><strong>activation</strong> – output head activation</p></li>
</ul>
</dd>
</dl>
</dd></dl>
<dl class="py class">
<dt class="sig sig-object py" id="nerfstudio.field_components.field_heads.TransientRGBFieldHead">
<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">nerfstudio.field_components.field_heads.</span></span><span class="sig-name descname"><span class="pre">TransientRGBFieldHead</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">in_dim</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">int</span><span class="p"><span class="pre">]</span></span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">activation</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">Module</span><span class="p"><span class="pre">]</span></span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">Sigmoid()</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="../../../_modules/nerfstudio/field_components/field_heads.html#TransientRGBFieldHead"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#nerfstudio.field_components.field_heads.TransientRGBFieldHead" title="Permalink to this definition">#</a></dt>
<dd><p>Bases: <a class="reference internal" href="#nerfstudio.field_components.field_heads.FieldHead" title="nerfstudio.field_components.field_heads.FieldHead"><code class="xref py py-class docutils literal notranslate"><span class="pre">FieldHead</span></code></a></p>
<p>Transient RGB output</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters<span class="colon">:</span></dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>in_dim</strong> – input dimension. If not defined in constructor, it must be set later.</p></li>
<li><p><strong>activation</strong> – output head activation</p></li>
</ul>
</dd>
</dl>
</dd></dl>
<dl class="py class">
<dt class="sig sig-object py" id="nerfstudio.field_components.field_heads.UncertaintyFieldHead">
<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">nerfstudio.field_components.field_heads.</span></span><span class="sig-name descname"><span class="pre">UncertaintyFieldHead</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">in_dim</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">int</span><span class="p"><span class="pre">]</span></span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">activation</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Optional</span><span class="p"><span class="pre">[</span></span><span class="pre">Module</span><span class="p"><span class="pre">]</span></span></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">Softplus(beta=1.0,</span> <span class="pre">threshold=20.0)</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="../../../_modules/nerfstudio/field_components/field_heads.html#UncertaintyFieldHead"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#nerfstudio.field_components.field_heads.UncertaintyFieldHead" title="Permalink to this definition">#</a></dt>
<dd><p>Bases: <a class="reference internal" href="#nerfstudio.field_components.field_heads.FieldHead" title="nerfstudio.field_components.field_heads.FieldHead"><code class="xref py py-class docutils literal notranslate"><span class="pre">FieldHead</span></code></a></p>
<p>Uncertainty output</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters<span class="colon">:</span></dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>in_dim</strong> – input dimension. If not defined in constructor, it must be set later.</p></li>
<li><p><strong>activation</strong> – output head activation</p></li>
</ul>
</dd>
</dl>
</dd></dl>
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<ul>
<li><a class="reference internal" href="#">Field Heads</a><ul>
<li><a class="reference internal" href="#nerfstudio.field_components.field_heads.DensityFieldHead"><code class="docutils literal notranslate"><span class="pre">DensityFieldHead</span></code></a></li>
<li><a class="reference internal" href="#nerfstudio.field_components.field_heads.FieldHead"><code class="docutils literal notranslate"><span class="pre">FieldHead</span></code></a><ul>
<li><a class="reference internal" href="#nerfstudio.field_components.field_heads.FieldHead.forward"><code class="docutils literal notranslate"><span class="pre">FieldHead.forward()</span></code></a></li>
<li><a class="reference internal" href="#nerfstudio.field_components.field_heads.FieldHead.set_in_dim"><code class="docutils literal notranslate"><span class="pre">FieldHead.set_in_dim()</span></code></a></li>
</ul>
</li>
<li><a class="reference internal" href="#nerfstudio.field_components.field_heads.FieldHeadNames"><code class="docutils literal notranslate"><span class="pre">FieldHeadNames</span></code></a></li>
<li><a class="reference internal" href="#nerfstudio.field_components.field_heads.PredNormalsFieldHead"><code class="docutils literal notranslate"><span class="pre">PredNormalsFieldHead</span></code></a><ul>
<li><a class="reference internal" href="#nerfstudio.field_components.field_heads.PredNormalsFieldHead.forward"><code class="docutils literal notranslate"><span class="pre">PredNormalsFieldHead.forward()</span></code></a></li>
</ul>
</li>
<li><a class="reference internal" href="#nerfstudio.field_components.field_heads.RGBFieldHead"><code class="docutils literal notranslate"><span class="pre">RGBFieldHead</span></code></a></li>
<li><a class="reference internal" href="#nerfstudio.field_components.field_heads.SHFieldHead"><code class="docutils literal notranslate"><span class="pre">SHFieldHead</span></code></a></li>
<li><a class="reference internal" href="#nerfstudio.field_components.field_heads.SemanticFieldHead"><code class="docutils literal notranslate"><span class="pre">SemanticFieldHead</span></code></a></li>
<li><a class="reference internal" href="#nerfstudio.field_components.field_heads.TransientDensityFieldHead"><code class="docutils literal notranslate"><span class="pre">TransientDensityFieldHead</span></code></a></li>
<li><a class="reference internal" href="#nerfstudio.field_components.field_heads.TransientRGBFieldHead"><code class="docutils literal notranslate"><span class="pre">TransientRGBFieldHead</span></code></a></li>
<li><a class="reference internal" href="#nerfstudio.field_components.field_heads.UncertaintyFieldHead"><code class="docutils literal notranslate"><span class="pre">UncertaintyFieldHead</span></code></a></li>
</ul>
</li>
</ul>
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