97 lines
2.9 KiB
HTML
97 lines
2.9 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>ALE User Manual: 3D Modeling</title>
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<table align=right valign=top width=160>
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<td valign=top height=600 width=160>
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<a href="http://auricle.dyndns.org/ALE/">
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<big>ALE</big>
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<br>
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Image Processing Software
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<br>
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<br>
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<small>Deblurring, Anti-aliasing, and Superresolution.</small></a>
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<br><br>
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<big>
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Local Operation
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</big>
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<hr>
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localhost<br>
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2684415918<br>
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</table>
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<p><b>[ <a href="../">Up</a> ]</b></p>
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<h1>ALE 3D Modeling [Very Experimental]</h1>
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<p>When considering images captured by a camera, the projective class of 2D
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transformations can compensate for arbitrary changes in position and
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orientation when the scene consists of a diffuse flat surface, and arbitrary
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changes in orientation (but not position) otherwise. In order to support
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changes of position and orientation in the general case, it is necessary to
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construct a 3D model of the scene. ALE currently has no reliable method for
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doing this, but the scene reconstruction code included in versions 0.7.2 and
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later may be a useful starting point for developing such a method.
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<h2>View Angle</h2>
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<p>In versions 0.7.3 and above, the diagonal view angle of the camera can be
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specified on the command line. If no value is specified, the default value is
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either device specific (if a device with a known view angle is specified), 43.7
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degrees [ALE 0.7.3 and above], or 90 degrees [ALE 0.7.2].
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<pre>
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--view-angle <x> Set the diagonal view angle to <x> degrees. [ALE 0.7.3 and above]
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</pre>
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<h2>View Output [Very Experimental]</h2>
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The view output option provides a reconstruction of the scene as viewed from a
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particular frame's vantage point.
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<pre>
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--3dv <n> <o> Render file <o> from a 3D model using the <n>th frame view. [Very Experimental]
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</pre>
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<h2>Depth Output [Very Experimental]</h2>
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The depth output option provides reconstructed depth information associated
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with a view.
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<pre>
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--3dd <n> <o> Render 3D depth information <o> for the view from frame <n>. [Very Experimental]
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</pre>
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<br>
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<hr>
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<i>Copyright 2004 <a href="mailto:dhilvert@auricle.dyndns.org">David Hilvert</a></i>
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<p>Verbatim copying and distribution of this entire article is permitted in any medium, provided this notice is preserved.
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</body>
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</html>
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