scholarly journals The Virtual Point Light Source Model the Practical Realisation of Photometric Stereo for Dynamic Surface Inspection

2005 ◽  
pp. 495-502
Author(s):  
Lyndon Smith ◽  
Melvyn Smith
Keyword(s):  
Light Source ◽  
Source Model ◽  
Photometric Stereo ◽  
Surface Inspection ◽  
Point Light Source ◽  
Dynamic Surface ◽  
Virtual Point ◽  
Point Light

Photometric stereo with quasi-point light source

2018 ◽  
Vol 111 ◽  
pp. 172-182 ◽  
Author(s):  
Zhao Song ◽  
Ying Nie ◽  
Zhan Song
Keyword(s):  
Light Source ◽  
Photometric Stereo ◽  
Point Light Source ◽  
Point Light

A confocal laser scanning microscope for fluorescence and reflection at video rates

1989 ◽  
Vol 47 ◽  
pp. 134-135
Author(s):  
P.M. Houpt ◽  
A. Draaijer
Keyword(s):  
Light Source ◽  
Laser Scanning ◽  
Focal Point ◽  
Confocal Laser Scanning Microscope ◽  
Confocal Laser ◽  
Point Light Source ◽  
Volume Of Interest ◽  
Ion Laser ◽  
Point Light ◽  
Point Detector

In confocal microscopy, the object is scanned by the coinciding focal points (confocal) of a point light source and a point detector both focused on a certain plane in the object. Only light coming from the focal point is detected and, even more important, out-of-focus light is rejected.This makes it possible to slice up optically the ‘volume of interest’ in the object by moving it axially while scanning the focused point light source (X-Y) laterally. The successive confocal sections can be stored in a computer and used to reconstruct the object in a 3D image display.The instrument described is able to scan the object laterally with an Ar ion laser (488 nm) at video rates. The image of one confocal section of an object can be displayed within 40 milliseconds (1000 х 1000 pixels). The time to record the total information within the ‘volume of interest’ normally depends on the number of slices needed to cover it, but rarely exceeds a few seconds.

scholarly journals Light Structure from Pin Motion: Geometric Point Light Source Calibration

2020 ◽  
Vol 128 (7) ◽  
pp. 1889-1912
Author(s):  
Hiroaki Santo ◽  
Michael Waechter ◽  
Wen-Yan Lin ◽  
Yusuke Sugano ◽  
Yasuyuki Matsushita
Keyword(s):  
Light Source ◽  
Point Light Source ◽  
Geometric Point ◽  
Point Light

Spark point light source

1981 ◽  
Vol 52 (4) ◽  
pp. 624-625
Author(s):  
Harold E. Edgerton ◽  
Vernon E. MacRoberts
Keyword(s):  
Light Source ◽  
Point Light Source ◽  
Point Light
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