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Three-dimensional visualization of shape measurement data based on a computer generated hologram

Hui Wang1, Yong Li1, Hongzhen Jin1, Chaofu Yin1, Xianyu Su2 and Wenjing Chen2

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In this paper, we present a technique to reconstruct a 3D object by its measurement data using a computer generated hologram (CGH). First, both the range image and the intensity image of a 3D object are acquired simultaneously using a 3D shape measurement system. Then, the Fresnel CGH is designed and fabricated using these data. Finally, by combining CGH with optical holography, an image hologram is recorded. This technique resolves how to obtain a 3D image in a CGH as well as how to reproduce the measurements of object images in three-dimensional object shapes. In this paper the principle behind the proposed method, the technology for designing and fabricating the CGH and optical hologram, and the experimental results are given.


PACS

42.40.Jv Computer-generated holograms

42.30.Wb Image reconstruction; tomography

06.30.Bp Spatial dimensions (e.g., position, lengths, volume, angles, and displacements)

Subjects

Instrumentation and measurement

Optics, quantum optics and lasers

Dates

Issue 5 (September 2003)

Received 11 November 2002, in final form 28 February 2003

Published 22 August 2003



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