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(PDF) Ray tracing through a grid of blobs
https://www.researchgate.net/publication/4155199_Ray_tracing_through_a_grid_of_blobs
(PDF) Ray tracing through a grid of blobs - ResearchGate
https://www.researchgate.net/publication/4155199_Ray_tracing_through_a_grid_of_blobs
Ray tracing through a grid of blobs Lucretiu M. Popescu and Robert M. Lewitt Abstract —In this paper we describe two ray tracing algorithms for images r epresented using spherically symmetric basis...
Ray tracing through a grid of blobs - IEEE Conference …
https://ieeexplore.ieee.org/document/1466750
Ray tracing through a grid of blobs Abstract: In this paper we describe two ray tracing algorithms for images represented using spherically symmetric basis functions (blobs) on regular grids. The method presented here allows more realistic modeling of the forward projection by considering tube shaped kernels, rather than simple lines.
Ray tracing through a grid of blobs | Semantic Scholar
https://www.semanticscholar.org/paper/Ray-tracing-through-a-grid-of-blobs-Popescu-Lewitt/f7d87221be45084aa7566fb4baf19bd4b0d03bd4
Both ray tracing procedures presented incrementally compute the square distance r/sup 2/ for each visited blob enabling the appropriate resolution kernel to be used. The second variant also computes the l coordinate along the line of response axis allowing for longitudinal variations of the resolution kernel to be considered as well as time-of-flight (TOF) modeling.
Figure 4 from Ray tracing through a grid of blobs
https://www.semanticscholar.org/paper/Ray-tracing-through-a-grid-of-blobs-Popescu-Lewitt/f7d87221be45084aa7566fb4baf19bd4b0d03bd4/figure/3
Fig. 4. Distances from the points of a grid to an arbitrary straight line. - "Ray tracing through a grid of blobs"
Ray tracing through a grid of blobs - GEOCITIES.ws
http://www.geocities.ws/lucretiu_popescu/publications/btrace5.pdf
Ray tracing through a grid of blobs Lucretiu M. Popescu and Robert M. Lewitt Abstract—In this paper we describe two ray tracing algorithms for images represented using spherically symmetric basis functions (blobs) on regular grids. The method presented here allows more realistic modeling of the forward projection by considering tube
Figure 1 from Ray tracing through a grid of blobs
https://www.semanticscholar.org/paper/Ray-tracing-through-a-grid-of-blobs-Popescu-Lewitt/f7d87221be45084aa7566fb4baf19bd4b0d03bd4/figure/0
Ray tracing through a grid of blobs @article{Popescu2004RayTT, title={Ray tracing through a grid of blobs}, author={L. M. Popescu and Robert M. Lewitt}, journal={IEEE Symposium Conference Record Nuclear Science 2004.}, year={2004}, volume={6}, pages={3983-3986 Vol. 6} } …
NDLI Presents: Ray tracing through a grid of blobs
https://ndl.iitkgp.ac.in/document/bm8rRkVoV0NZOEJjSHJUVWhuSTR3QUN3eVJ1WlZnQ1gyTjVFaVAvRVBMdz0
Ray tracing through a grid of blobs. Select any item from the right-pane. Content Source: IEEE Xplore Digital Library. Source: IEEE Xplore Digital Library
Lecture 17: Lenses and ray tracing - Physics
https://physicscourses.colorado.edu/phys1230/phys1230_fa18/lectures/Lecture17_Lenses_and_Ray_Tracing_fa18.pdf
1) A ray parallel to the axis is deflected through the focus on the other side 2) A ray through the center of the lens continues undeviated 3) A ray coming from the focus on one side goes out parallel to the axis on the other F F’ 1 2 3 3 foci} focal length Thin …
Ray Tracing with Spatial Hierarchies - webhome.cs.uvic.ca
https://webhome.cs.uvic.ca/~blob/courses/305/notes/pdf/Ray%20Tracing%20with%20Spatial%20Hierarchies.pdf
Ray Tracing. Flexible, accurate, high-quality rendering. Slow. Simplest ray tracer: Test every ray against every object in the scene N objects, M rays →O(N * M) Using an acceleration scheme: Acceleration scheme = sub-linear complexity of N Grids and hierarchies N objects, M rays →O(log(N) * M) Log(N) is a theoretical estimate, in reality it depends on the scene Speedups of …
raytracing/Ray.cpp at master · GRID-Raytracing/raytracing
https://github.com/GRID-Raytracing/raytracing/blob/master/Ray.cpp
Contribute to GRID-Raytracing/raytracing development by creating an account on GitHub.
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