Single-shot absolute 3D measurement based on speckle-embedded fringe projection

Tong Li, Guocheng Zhou, Yiming Zhang, Lin Fan, Shaohui Zhang*, Qun Hao

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

摘要

In this paper, we propose a single-shot absolute three-dimensional (3D) imaging method that only needs one speckle-embedded fringe pattern. In terms of algorithm, we develop a computational framework to achieve 3D measurement through: 1). extracting the fringe phase from speckle-embedded fringe images by performing a two-dimensional (2D) band-pass filtering on the Fourier spectrum; 2). utilizing the local speckle distribution to eliminate the periodic ambiguity of fringes and achieve integer-pixel matching; 3). utilizing the wrapped phase to refine the disparity map at the sub-pixel level. In terms of system setup, we design an optical system which can project a speckle-embedded fringe pattern in a large depth-of-field. The experiments are conducted to demonstrate the feasibility and effectiveness of the proposed method. The 3D measurement rate of our method is equal to the frame rate of cameras, not limited by projection devices.

源语言英语
文章编号107884
期刊Optics and Lasers in Engineering
172
DOI
出版状态已出版 - 1月 2024

指纹

探究 'Single-shot absolute 3D measurement based on speckle-embedded fringe projection' 的科研主题。它们共同构成独一无二的指纹。

引用此