Three-dimensional shape measurement using focus method by using liquid crystal grating and liquid varifocus lens

2005 ◽  
Author(s):  
Yasuhiro Mizutani ◽  
Ryoichi Kuwano ◽  
Yukitoshi Otani ◽  
Norihiro Umeda ◽  
Toru Yoshizawa
Keyword(s):  
Liquid Crystal ◽  
Three Dimensional ◽  
Shape Measurement ◽  
Dimensional Shape ◽  
Three Dimensional Shape ◽  
Liquid Crystal Grating

Three-dimensional Shape Measurement using Non-contact Line Laser Probe

2021 ◽  
Vol 2021.74 (0) ◽  
pp. F41
Author(s):  
Masanori KAJIKI ◽  
Syuhei KUROKAWA ◽  
Terutake HAYASHI ◽  
Kuniharu YAMAMOTO
Keyword(s):  
Contact Line ◽  
Three Dimensional ◽  
Shape Measurement ◽  
Laser Probe ◽  
Dimensional Shape ◽  
Three Dimensional Shape

scholarly journals Software package for testing three-dimensional shape measurement methods using structured lighting

2021 ◽  
Vol 2057 (1) ◽  
pp. 012087
Author(s):  
S V Dvoynishnikov ◽  
V O Zuev ◽  
I K Kabardin ◽  
D V Kulikov ◽  
V V Rahmanov
Keyword(s):  
Software Package ◽  
Three Dimensional ◽  
Measurement Methods ◽  
Shape Measurement ◽  
Structured Lighting ◽  
Lighting Conditions ◽  
Ambient Lighting ◽  
Dimensional Shape ◽  
Shadow Maps ◽  
Three Dimensional Shape

Abstract This work aims at creating a universal software package for the development and testing of triangulation methods using structured lighting for measuring the three-dimensional geometry of objects in difficult ambient lighting conditions. As a result, a software package meeting the stated requirements is created. Lighting is based on the Fong model. A method for preloading objects is implemented to optimize the operation of the software package. An accelerated method for creating shadow maps is proposed and implemented. The developed software package is shown to successfully perform all required functions.

scholarly journals Three Dimensional Shape Measurement of Teeth (Part 11)

1992 ◽  
Vol 11 (1) ◽  
pp. 38-44,112 ◽  
Author(s):  
Hiroshi KIMURA ◽  
Taiji SOHMURA ◽  
Junzo TAKAHASHI
Keyword(s):  
Three Dimensional ◽  
Shape Measurement ◽  
Dimensional Shape ◽  
Three Dimensional Shape
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