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GIS
2006
ACM
15 years 11 months ago
Efficient position-independent iconic search using an R-theta index
An iconic image database is a collection of symbolic images where each image is a collection of labeled point features called icons. A method is presented to support fast position...
Charles Ben Cranston, Hanan Samet
COMPGEOM
2000
ACM
15 years 2 months ago
A trace bound for the hereditary discrepancy
Let A be the incidence matrix of a set system with m sets and n points, m ≤ n, and let t = tr M, where M = AT A. Finally, let σ = tr M2 be the sum of squares of the elements of ...
Bernard Chazelle, Alexey Lvov
ICCV
2007
IEEE
15 years 11 months ago
Novel Depth Cues from Uncalibrated Near-field Lighting
We present the first method to compute depth cues from images taken solely under uncalibrated near point lighting. A stationary scene is illuminated by a point source that is move...
Sanjeev J. Koppal, Srinivasa G. Narasimhan
VLDB
2007
ACM
191views Database» more  VLDB 2007»
15 years 10 months ago
Multidimensional reverse k NN search
Given a multidimensional point q, a reverse k nearest neighbor (RkNN) query retrieves all the data points that have q as one of their k nearest neighbors. Existing methods for proc...
Yufei Tao, Dimitris Papadias, Xiang Lian, Xiaokui ...
GRAPHICSINTERFACE
2007
14 years 11 months ago
Feature peeling
We present a novel rendering algorithm that analyses the ray profiles along the line of sight. The profiles are subdivided according to encountered peaks and valleys at so calle...
Muhammad Muddassir Malik, Torsten Möller, M. ...