IEEE Comput Graph Appl - A Tool-Free Calibration Method for Turntable-based 3D Scanning Systems.

Tópicos

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Resumo

Turntable-based 3D scanners are popular, but require calibration of the turntable axis. Existing methods for turntable calibration typically make use of specially designed tools, such as a chessboard or criterion sphere, which requires extra human effort to be installed and dismounted in the calibration process. In this paper, we propose an automatic method to calibrate the turntable axis without any calibration tools. Given a scan sequence of the input object, we first recover the initial rotation axis from an automatic registration step. We then apply an iterative procedure to obtain the optimized turntable axis. This iterative procedure alternates between two steps: refining the initial pose of the input scans and approximating the rotation matrix. We have evaluated the performance of the proposed method on a structured light based scanning system.

Resumo Limpo

turntablebas d scanner popular requir calibr turntabl axi exist method turntabl calibr typic make use special design tool chessboard criterion sphere requir extra human effort instal dismount calibr process paper propos automat method calibr turntabl axi without calibr tool given scan sequenc input object first recov initi rotat axi automat registr step appli iter procedur obtain optim turntabl axi iter procedur altern two step refin initi pose input scan approxim rotat matrix evalu perform propos method structur light base scan system

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