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» On the distinct distances determined by a planar point set
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GIS
2008
ACM
14 years 10 months ago
Indexing planar point quartets via geometric attributes
An index is devised to support position-independent search for images containing quartets of icons. Point quartets exist that do not unambiguously map to quadrilaterals, however, ...
Charles Ben Cranston, Hanan Samet
IJIG
2008
222views more  IJIG 2008»
13 years 9 months ago
An Analytical Solution to the Perspective-n-Point Problem for Common Planar Camera and for Catadioptric Sensor
The Perspective-N-Point problem (PNP) is a notable problem in computer vision. It consists in, given N points known in an object coordinate space and their projection onto the ima...
Jonathan Fabrizio, Jean Devars
CORR
2011
Springer
157views Education» more  CORR 2011»
13 years 25 days ago
Convex Hull of Imprecise Points in o(n \log{n}) Time after Preprocessing
Motivated by the desire to cope with data imprecision [8], we study methods for preprocessing a set of planar regions such that whenever we are given a set of points, each of whic...
Esther Ezra, Wolfgang Mulzer
CCCG
2010
13 years 10 months ago
Ghost chimneys
A planar point set S is an (i, t) set of ghost chimneys if there exist lines H0, H1, . . . , Ht-1 such that the orthogonal projection of S onto Hj consists of exactly i + j distin...
David Charlton, Erik D. Demaine, Martin L. Demaine...
CVPR
2007
IEEE
14 years 11 months ago
Improved Video Registration using Non-Distinctive Local Image Features
The task of registering video frames with a static model is a common problem in many computer vision domains. The standard approach to registration involves finding point correspo...
Robin Hess, Alan Fern