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RT
2005
Springer
15 years 12 months ago
Metropolis Photon Sampling with Optional User Guidance
We present Metropolis Photon Sampling (MPS), a visual importance-driven algorithm for populating photon maps. Photon Mapping and other particle tracing algorithms fail if the phot...
Shaohua Fan, Stephen Chenney, Yu-chi Lai
SGAI
2005
Springer
15 years 12 months ago
The Effect of Principal Component Analysis on Machine Learning Accuracy with High Dimensional Spectral Data
This paper presents the results of an investigation into the use of machine learning methods for the identification of narcotics from Raman spectra. The classification of spectr...
Tom Howley, Michael G. Madden, Marie-Louise O'Conn...
SLSFS
2005
Springer
15 years 12 months ago
Constructing Visual Models with a Latent Space Approach
We propose the use of latent space models applied to local invariant features for object classification. We investigate whether using latent space models enables to learn patterns...
Florent Monay, Pedro Quelhas, Daniel Gatica-Perez,...
CIVR
2004
Springer
138views Image Analysis» more  CIVR 2004»
15 years 12 months ago
What's News, What's Not? Associating News Videos with Words
Text retrieval from broadcast news video is unsatisfactory, because a transcript word frequently does not directly ‘describe’ the shot when it was spoken. Extending the retriev...
Pinar Duygulu, Alexander G. Hauptmann
ICBA
2004
Springer
271views Biometrics» more  ICBA 2004»
15 years 11 months ago
Enhance the Alignment Accuracy of Active Shape Models Using Elastic Graph Matching
Active Shape Model (ASM) is one of the most popular methods for image alignment. To improve its matching accuracy, in this paper, ASM searching method is combined with a simplifie...
Sanqiang Zhao, Wen Gao, Shiguang Shan, Baocai Yin