Application of optical ray tracing techniques to the simulation of sonar images

1997 ◽  
Vol 36 (6) ◽  
pp. 1806 ◽  
Author(s):  
Judith M. Bell
Keyword(s):  
Ray Tracing ◽  
Sonar Images ◽  
Tracing Techniques ◽  
Optical Ray Tracing

scholarly journals Investigating Intense Rainfall Influence on Distance Measurement with a Time-of-Flight Camera Sensor Using Optical Ray-Tracing Simulation Technique

Proceedings ◽  
2018 ◽  
Vol 2 (13) ◽  
pp. 1056
Author(s):  
Marcus Baumgart ◽  
Norbert Druml ◽  
Markus Dielacher ◽  
Cristina Consani
Keyword(s):  
Ray Tracing ◽  
Time Of Flight ◽  
Autonomous Driving ◽  
Intense Rainfall ◽  
Signal Suppression ◽  
Tof Camera ◽  
Ray Tracing Simulation ◽  
Camera Sensors ◽  
Optical Ray Tracing ◽  
Rain Effect

Robust, fast and reliable examination of the surroundings is essential for further advancements in autonomous driving and robotics. Time-of-Flight (ToF) camera sensors are a key technology to measure surrounding objects and their distances on a pixel basis in real-time. Environmental effects, like rain in front of the sensor, can influence the distance accuracy of the sensor. Here we use an optical ray-tracing based procedure to examine the rain effect on the ToF image. Simulation results are presented for experimental rain droplet distributions, characteristic of intense rainfall at rates of 25 mm/h and 100 mm/h. The ray-tracing based simulation data and results serve as an input for developing and testing rain signal suppression strategies.

Optical Ray Tracing for the Calculation of Optimized Corneal Ablation Profiles in Refractive Treatment Planning

2008 ◽  
Vol 24 (4) ◽  
pp. S446-S451 ◽  
Author(s):  
Michael Mrochen ◽  
Michael Bueeler ◽  
Christof Donitzky ◽  
Theo Seiler
Keyword(s):  
Treatment Planning ◽  
Ray Tracing ◽  
Optical Ray Tracing

A New Parallel Approach for 3D Ray-Tracing Techniques in the Radio Propagation Prediction

2007 ◽  
Vol 5 (5) ◽  
pp. 271-279 ◽  
Author(s):  
Andre Mendes Cavalcante ◽  
Marco Jose de Sousa ◽  
Joao Crisostomo Weyl Albuquerque Costa ◽  
Carlos Renato Lisboa Frances ◽  
Gervasio Protasio dos Santos Cavalcante
Keyword(s):  
Ray Tracing ◽  
Radio Propagation ◽  
3D Ray Tracing ◽  
Propagation Prediction ◽  
Tracing Techniques

Optical Ray Tracing Using Parallel Processors

2005 ◽  
Vol 54 (1) ◽  
pp. 87-97 ◽  
Author(s):  
C.B. Cameron ◽  
R.N. Rodriguez ◽  
N. Padgett ◽  
E. Waluschka ◽  
S. Kizhner
Keyword(s):  
Ray Tracing ◽  
Parallel Processors ◽  
Optical Ray Tracing

Using efficient ray-tracing techniques to predict propagation losses in indoor environments

2007 ◽  
Vol 49 (4) ◽  
pp. 854-858 ◽  
Author(s):  
F. A. Alves ◽  
M. R. M. L. Albuquerque ◽  
S. G. Silva ◽  
A. G. d'Assunção
Keyword(s):  
Ray Tracing ◽  
Indoor Environments ◽  
Propagation Losses ◽  
Tracing Techniques
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