Tuning focal length of vari-focal lens for color 3D object reconstruction

Jing Sheuan Lin; Chun Jen Weng; Pi-Ying Cheng

doi:10.1117/12.2535570

Tuning focal length of vari-focal lens for color 3D object reconstruction

Jing Sheuan Lin, Chun Jen Weng^*, Pi-Ying Cheng

^*Corresponding author for this work

Department of Mechanical Engineering

Research output: Contribution to journal › Conference article › peer-review

Abstract

A color 3D object reconstruction system using varifocal lens with various focus algorithms was established in this study. The focal length of the varifocal lens can be regulated by varying the focal power. In this study, four categories of algorithms are applied into the system. The focal length of the system is adjusted by computer control, and the best focal length would be found by the algorithm. When the image of sample is in focus, the image will be the clearest. By finding the best focal length corresponding to each pixel position, we can convert to the height information for reconstructing the threedimensional surface profile.

Original language	English
Article number	OPTM-P-03
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	11142
DOIs	https://doi.org/10.1117/12.2535570
State	Published - 1 Jan 2019
Event	Optical Technology and Measurement for Industrial Applications Conference 2019 - Yokohama, Japan Duration: 22 Apr 2019 → 26 Apr 2019

Keywords

3D object reconstruction
color
focus algorithm
varifocal lens

Access to Document

10.1117/12.2535570

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title = "Tuning focal length of vari-focal lens for color 3D object reconstruction",

abstract = "A color 3D object reconstruction system using varifocal lens with various focus algorithms was established in this study. The focal length of the varifocal lens can be regulated by varying the focal power. In this study, four categories of algorithms are applied into the system. The focal length of the system is adjusted by computer control, and the best focal length would be found by the algorithm. When the image of sample is in focus, the image will be the clearest. By finding the best focal length corresponding to each pixel position, we can convert to the height information for reconstructing the threedimensional surface profile.",

keywords = "3D object reconstruction, color, focus algorithm, varifocal lens",

author = "Lin, {Jing Sheuan} and Weng, {Chun Jen} and Pi-Ying Cheng",

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doi = "10.1117/12.2535570",

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AU - Lin, Jing Sheuan

AU - Weng, Chun Jen

AU - Cheng, Pi-Ying

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N2 - A color 3D object reconstruction system using varifocal lens with various focus algorithms was established in this study. The focal length of the varifocal lens can be regulated by varying the focal power. In this study, four categories of algorithms are applied into the system. The focal length of the system is adjusted by computer control, and the best focal length would be found by the algorithm. When the image of sample is in focus, the image will be the clearest. By finding the best focal length corresponding to each pixel position, we can convert to the height information for reconstructing the threedimensional surface profile.

AB - A color 3D object reconstruction system using varifocal lens with various focus algorithms was established in this study. The focal length of the varifocal lens can be regulated by varying the focal power. In this study, four categories of algorithms are applied into the system. The focal length of the system is adjusted by computer control, and the best focal length would be found by the algorithm. When the image of sample is in focus, the image will be the clearest. By finding the best focal length corresponding to each pixel position, we can convert to the height information for reconstructing the threedimensional surface profile.

KW - 3D object reconstruction

KW - color

KW - focus algorithm

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