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Table \ref{tbl:hardwareparts} lists the main hardware parts of the SeeMaLab 3D scanner with their specifications. The hardware consists of a set of industrial cameras and a projector mounted on a sturdy aluminum optical breadboard. A microtranslation stage holds the circular object plate, which can accurately rotate the scan object, in order to capture point clouds from different angles.
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Table \ref{tbl:hardwareparts} lists the main hardware parts of the SeeMaLab 3D scanner with their specifications. The hardware consists of a set of industrial cameras and a projector mounted on a sturdy aluminum optical breadboard. A microtranslation stage holds the circular object plate, which can accurately rotate the scan object, in order to capture point clouds from different angles.
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The cameras, projector and rotation stage are mounted rigidly with respect to each other, which is important for high quality results. See figure \ref{fig:hardware0} for an image of the inside of the main scanner assembly. A darkening curtain can be lowered, to prevent ambient light from interfering with the measurement procedure.
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The cameras, projector and rotation stage are mounted rigidly with respect to each other, which is important for high quality results. See figure \ref{fig:hardware0} for an image of the inside of the main scanner assembly. A darkening curtain can be lowered, to prevent ambient light from interfering with the measurement procedure.
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\begin{figure}[h]
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\begin{figure}[h]
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\centering
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\centering
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\includegraphics[width=.9\textwidth]{hardware0.JPG}
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\includegraphics[width=.9\textwidth]{hardware0.jpg}
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\caption{The scanner hardware. Two industrial cameras and one projector constitute the optical parts. An angle figure acts as the scan object, and is placed on top of the circular rotation plate. This plate is screwed onto a microrotation stage. The projector remote control and the calibration target are also seen.}
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\caption{The scanner hardware. Two industrial cameras and one projector constitute the optical parts. An angle figure acts as the scan object, and is placed on top of the circular rotation plate. This plate is screwed onto a microrotation stage. The projector remote control and the calibration target are also seen.}
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\label{fig:hardware0}
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\label{fig:hardware0}
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\end{figure}
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\end{figure}
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The geometry of the scanner is illustrated on figure \ref{fig:hardwaredimensions}, which also indicates the minimum focus range of the cameras and projector.
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The geometry of the scanner is illustrated on figure \ref{fig:hardwaredimensions}, which also indicates the minimum focus range of the cameras and projector.
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