Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5007920 | Optics and Lasers in Engineering | 2017 | 8 Pages |
Abstract
This paper presents a method that recovers high-quality 3D absolute coordinates point by point with only five binary patterns. Specifically, three dense binary dithered patterns are used to compute the wrapped phase; and the average intensity is combined with two additional binary patterns to determine fringe order pixel by pixel in phase domain. The wrapped phase is temporarily unwrapped point by point by referring to the fringe order. We further developed a computational framework to reduce random noise impact due to dithering, defocusing and random noise. Since only five binary fringe patterns are required to recover one 3D frame, extremely high speed 3D shape measurement can be achieved. For example, we developed a system that captures 2D images at 3333Â Hz, and thus performs 3D shape measurement at 667Â Hz.
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Physical Sciences and Engineering
Engineering
Electrical and Electronic Engineering
Authors
Jae-Sang Hyun, Song Zhang,