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ICML
2010
IEEE
11 years 8 months ago
Spherical Topic Models
We introduce the Spherical Admixture Model (SAM), a Bayesian topic model for arbitrary 2 normalized data. SAM maintains the same hierarchical structure as Latent Dirichlet Allocat...
Joseph Reisinger, Austin Waters, Bryan Silverthorn...
PR
2007
125views more  PR 2007»
11 years 7 months ago
Calculating geometric properties of three-dimensional objects from the spherical harmonic representation
The volume, location of the centroid, and second order moments of a threedimensional star-shaped object are determined in terms of the spherical harmonic coefficients of its bound...
Artemy Baxansky, Nahum Kiryati
ICMCS
2005
IEEE
104views Multimedia» more  ICMCS 2005»
12 years 1 months ago
Spherical Harmonics Descriptor for 2D-Image Retrieval
In this paper, spherical harmonics are proposed as shape descriptors for 2d images. We introduce the concept of connectivity; 2d images are decomposed using connectivity which is ...
Atul Sajjanhar, Guojun Lu, Dengsheng Zhang
ICCV
2007
IEEE
12 years 2 months ago
Cortical Folding Development Study based on Over-Complete Spherical Wavelets
We introduce the use of over-complete spherical wavelets for shape analysis of 2D closed surfaces. Bi-orthogonal spherical wavelets have been shown to be powerful tools in the seg...
Peng Yu, B. T. Thomas Yeo, P. Ellen Grant, Bruce F...
ICRA
2008
IEEE
130views Robotics» more  ICRA 2008»
12 years 2 months ago
Motion estimation using multiple non-overlapping cameras for small unmanned aerial vehicles
— An imaging sensor made of multiple light-weight non-overlapping cameras is an effective sensor for a small unmanned aerial vehicle that has strong payload limitation. This pape...
Jun-Sik Kim, Myung Hwangbo, Takeo Kanade
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