Paper Info
Title
An Improved Structured Light Inspection of Specular Surfaces Based on Quaternary Coding
Abstract
Structured light techniques with binary coding are practical to inspect the specular surfaces. The structured light approaches use a scanned array of point sources and images of the resulting reflected highlights to compute local surface orientation. Binary coding scheme is the classic scheme for efficiently coding the light sources. This paper proposes a novel quaternary coding scheme which is much more efficient than the classic binary coding scheme. In this scheme, polychromatic light sources are utilized and coded in quaternary scheme. Our experimental system is described in detail. The problem caused by the polychromatic light sources is discussed too. To solve the problem, we drew lesson from the erosion operator from the Mathematical Morphology and designed an effective algorithm. The experiment results show the new quaternary coding scheme not only keeps a very high accuracy, but also greatly improves the efficiency of the inspection of specular surface.
Year
DOI
Venue
2009
10.1007/978-3-642-01811-4_12
MIRAGE
Keywords
DocType
Volume
specular surface,improved structured light inspection,classic scheme,polychromatic light source,structured light technique,structured light approach,light source,binary coding scheme,quaternary coding,quaternary scheme,classic binary,binary coding,mathematical morphology,point source,structured light
Conference
5496
ISSN
Citations 
PageRank 
0302-9743
0
0.34
References 
Authors
12
2
Name
Order
Citations
PageRank
Chengkun Xue111.37
Yankui Sun23312.88