Shape Estimation of Transparent Objects by Using Inverse Polarization Ray Tracing

2007 ◽  
Vol 29 (11) ◽  
pp. 2018-2030 ◽  
Author(s):  
Daisuke Miyazaki ◽  
Katsushi Ikeuchi
Keyword(s):  
Ray Tracing ◽  
Shape Estimation ◽  
Transparent Objects ◽  
Polarization Ray Tracing

Sub-triangle opacity masks for faster ray tracing of transparent objects

2020 ◽  
Vol 3 (2) ◽  
pp. 1-12
Author(s):  
Holger Gruen ◽  
Carsten Benthin ◽  
Sven Woop
Keyword(s):  
Ray Tracing ◽  
Integrate Approach ◽  
Proof Of Concept ◽  
Test Operation ◽  
Transparent Objects ◽  
Speed Up

We propose an easy and simple-to-integrate approach to accelerate ray tracing of alpha-tested transparent geometry with a focus on Microsoft® DirectX® or Vulkan® ray tracing extensions. Pre-computed bit masks are used to quickly determine fully transparent and fully opaque regions of triangles thereby skipping the more expensive alpha-test operation. These bit masks allow us to skip up to 86% of all transparency tests, yielding up to 40% speed up in a proof-of-concept DirectX® software only implementation.

scholarly journals Shape Estimation of Transparent Objects by Using Polarization Analyses

2006 ◽  
Vol 2 ◽  
pp. 407-427 ◽  
Author(s):  
Daisuke Miyazaki ◽  
Katsushi Ikeuchi
Keyword(s):  
Shape Estimation ◽  
Transparent Objects

scholarly journals Polarization-based shape estimation of transparent objects by using raytracing and PLZT camera

2005 ◽  
Author(s):  
Daisuke Miyazaki ◽  
Noriyuki Takashima ◽  
Akira Yoshida ◽  
Eiki Harashima ◽  
Katsushi Ikeuchi
Keyword(s):  
Shape Estimation ◽  
Transparent Objects

Three-dimensional polarization ray-tracing calculus II: retardance

2011 ◽  
Vol 50 (18) ◽  
pp. 2866 ◽  
Author(s):  
Garam Yun ◽  
Stephen C. McClain ◽  
Russell A. Chipman
Keyword(s):  
Ray Tracing ◽  
Three Dimensional ◽  
Polarization Ray Tracing
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