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CHI
2010
ACM
14 years 4 months ago
Social gravity: a virtual elastic tether for casual, privacy-preserving pedestrian rendezvous
We describe a virtual “tether” for mobile devices that allows groups to have quick, simple and privacy-preserving meetups. Our design provides cues which allow dynamic coordin...
John Williamson, Simon Robinson, Craig Stewart, Ro...
GEOS
2007
Springer
14 years 3 months ago
The Gravity Data Ontology: Laying the Foundation for Workflow-Driven Ontologies
Abstract. A workflow-driven ontology is an ontology that encodes disciplinespecific knowledge in the form of concepts and relationships and that facilitates the composition of serv...
Ann Q. Gates, G. Randy Keller, Leonardo Salayandia...
ICMCS
2009
IEEE
134views Multimedia» more  ICMCS 2009»
13 years 7 months ago
Robust lossless data hiding based on block gravity center for selective authentication
Reversible or lossless data hiding enables host media to be restored from marked media without any loss of host information. However, since most of existing lossless data hiding m...
Kyung-Su Kim, Min-Jeong Lee, Young-Ho Suh, Heung-K...
ICMI
2000
Springer
167views Biometrics» more  ICMI 2000»
14 years 1 months ago
Gravity-Center Template Based Human Face Feature Detection
This paper presents a simple and fast technique for geometrical feature detection of several human face organs such as eyes and mouth. Human face gravity-center template is firstly...
Jun Miao, Wen Gao, Yiqiang Chen, Jie Lu
CVPR
2011
IEEE
13 years 5 months ago
Relative pose problem for non-overlapping surveillance cameras with known gravity vector
We present a method for estimating the relative pose of two calibrated or uncalibrated non-overlapping surveillance cameras from observing a moving object. We show how to tackle t...
Branislav Micusik