Determination of Flaws in an 81 Millimeter Projectile Body Using the TRW Acousto-Optical Imaging Device

1970 ◽  
Author(s):  
Robert Aprahamian
Keyword(s):  
Optical Imaging ◽  
Imaging Device

Beam based calibration for optical imaging device

2007 ◽  
Author(s):  
W. Li ◽  
M. Schulte ◽  
T. Bothe ◽  
C. Kopylow ◽  
N. Kopp ◽  
...  
Keyword(s):  
Optical Imaging ◽  
Imaging Device

High-performance optical-imaging device and the analysis of image transmission characteristics

2002 ◽  
Author(s):  
Fengxia Yu ◽  
Zhaohui Bai ◽  
Liting Yu ◽  
Xibin Guan ◽  
Jilong Tang ◽  
...  
Keyword(s):  
Optical Imaging ◽  
High Performance ◽  
Image Transmission ◽  
Transmission Characteristics ◽  
Imaging Device

scholarly journals Time domain optical imaging device based on a commercial time-to-digital converter

2021 ◽  
Vol 92 (10) ◽  
pp. 103704
Author(s):  
P. Pérez-Tirador ◽  
K. I. Papadimitriou ◽  
S. Powell ◽  
J. C. Hebden
Keyword(s):  
Optical Imaging ◽  
Time Domain ◽  
Digital Converter ◽  
Imaging Device ◽  
Time To Digital Converter

scholarly journals Quantification of Uncertainties from Image Processing and Analysis in Laboratory-Scale DNAPL Release Studies Evaluated by Reflective Optical Imaging

Water ◽  
2019 ◽  
Vol 11 (11) ◽  
pp. 2274 ◽  
Author(s):  
Christian Engelmann ◽  
Luisa Schmidt ◽  
Charles J. Werth ◽  
Marc Walther
Keyword(s):  
Image Processing ◽  
Optical Imaging ◽  
Source Zone ◽  
Image Processing And Analysis ◽  
Non Invasive ◽  
Release Studies ◽  
Invasive Method ◽  
Phase Liquid ◽  
Flexible Framework

Subsurface DNAPL (dense non-aqueous phase liquid) contamination from (un-) intentional spilling typically leads to severe environmental hazards. A large number of studies have demonstrated the relevance of DNAPL source zone geometry for the determination of contaminant plume propagation in groundwater. Optical imaging represents a promising non-invasive method for identifying DNAPL saturation without disturbing multiphase flow dynamics. However, workflow and image analysis methodologies have not been sufficiently developed or described for general application to related experimental efforts. For example, the choice of dye(s) used for phase colorization affects image processing and can bias final estimations of DNAPL saturations. In this study, we perform a series of DNAPL migration and entrapment studies in transparent tanks that are filled with three different types of porous media. Different dyes are used and raw images are acquired. Subsequently, these are used to evaluate a suite of image processing and analysis approaches, which are organized into a workflow. Our approach allows for us to identify key image processing and analysis steps that introduce the most error. Applicable dye configurations led to uncertainties of up to 41% depending on the selection of processing steps. Based on these findings, it was possible to delineate a flexible framework for image processing and analysis that has the potential for transfer and application in other tank experiment setups.

High‐sensitivity acoustically scanned optical imaging device using charge storage effect

1976 ◽  
Vol 29 (2) ◽  
pp. 79-81 ◽  
Author(s):  
Ph. Defranould ◽  
H. Gautier ◽  
C. Maerfeld
Keyword(s):  
Optical Imaging ◽  
High Sensitivity ◽  
Charge Storage ◽  
Storage Effect ◽  
Imaging Device
Sign in / Sign up

Export Citation Format

Share Document