54 search results - page 3 / 11 » Flat refractive geometry |
ISBI
2006
IEEE
14 years 9 months ago
2006
IEEE
A significant obstacle in the advancement of Ultrasound Computed Tomography has been the lack of efficient and precise methods for the tracing of the bent rays that result from th...
SI3D
2006
ACM
14 years 2 months ago
2006
ACM
This paper presents a novel approach that uses graphics hardware to dynamically calculate a voxel-based representation of a scene. The voxelization is obtained on run-time in the ...
TMI
2002
13 years 8 months ago
2002
Microwave-induced thermoacoustic tomography (TAT) in a cylindrical configuration is developed to image biological tissue. Thermoacoustic signals are acquired by scanning a flat ult...
COMPGEOM
2007
ACM
14 years 13 days ago
2007
ACM
We consider the problem of approximating a set P of n points in Rd by a collection of j-dimensional flats, and extensions thereof, under the standard median / mean / center measur...
COMPGEOM
1999
ACM
14 years 25 days ago
1999
ACM
We show a remarkable fact about folding paper: From a single rectangular sheet of paper, one can fold it into a flat origami that takes the (scaled) shape of any connected polygo...