New laser rangefinder for three-dimensional shape measurement of specular objects

2001 ◽  
Vol 40 (1) ◽  
pp. 53 ◽  
Author(s):  
Kozo Ohtani
Keyword(s):  
Three Dimensional ◽  
Shape Measurement ◽  
Laser Rangefinder ◽  
Dimensional Shape ◽  
Specular Objects ◽  
Three Dimensional Shape

3-D Shape Measurement Sensor for Specular Objects

1995 ◽  
Vol 7 (3) ◽  
pp. 221-224 ◽  
Author(s):  
Harunobu Kawai ◽  
◽  
Toshihiro Hamada ◽  
Hiroki Nakanishi ◽  
Seiji Hata ◽  
...  
Keyword(s):  
Light Source ◽  
Three Dimensional ◽  
Shape Measurement ◽  
Inspection System ◽  
Output Intensity ◽  
Measurement Sensor ◽  
Dimensional Shape ◽  
Specular Objects ◽  
Contact Shape ◽  
Three Dimensional Shape

In the case of constructing an inspection system such as extracting the defects of 3-D shape of parts, it is a necessary and indispensable factor that the non-contact shape measurement of an object is automated. However, it is very difficult to measure the shape of an object which has a mirror-like surface. Here, a three-dimensional shape measurement sensor capable of reliably measuring the shape of an object which has mirror-like surface has been developed. The spotlight scanning light-section method is employed in this sensor. The sensor is a compact instrument by which the position of light can scan the object. The output intensity of the light source is controlled according to the detected brightness of light.

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.

Sign in / Sign up

Export Citation Format

Share Document