An encoded mini-grid structured light pattern for dynamic scenes

Authors:
Qingcang Yu;Xiaojun Jia;Jian Tao;Yun Zhao
Affiliations:
Zhejiang University, Hangzhou, Zhejiang, China;Zhejiang Sci-Tech University, Hangzhou, Zhejiang, China;Zhejiang University of Science and Technology, Hangzhou, Zhejiang, China;Zhejiang Sci-Tech University, Hangzhou, Zhejiang, China
Venue:
ICIC'05 Proceedings of the 2005 international conference on Advances in Intelligent Computing - Volume Part I
Year:
2005

Citing 3
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Abstract

This paper presents a structured light pattern for moving objects sensing in dynamic scenes. The proposed binary pattern can be projected by laser illumination, which aims at eliminate the affect of ambient sunlight, so as to widen application fields of depth sending approach based on structure light. Without the help of color information, the binary can provide great number of code words to make all sub-pattern own a globe unique code to make it suitable for moving objects sensing at one-shot. The propose patter offers more measurement spots than traditional patterns based on M-array, so as to acquire higher resolution. In this paper, the proposed pattern and codification are firstly presented. A new algorithm for fractured contour searching and searching strategies are discussed. An algorithm based on angle variation for contour character identification is given. Code points mapping and mapping regulations are also presented.