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ICIP
1999
IEEE
16 years 5 months ago
A Fast Algorithm for Rigid Structure from Image Sequences
The factorization method [1] is a feature-based approach to recover 3D rigid structure from motion. In [2], we extended their framework to recover a parametric description of the ...
Pedro M. Q. Aguiar, José M. F. Moura
PDP
2008
IEEE
15 years 10 months ago
Out-of-Core Wavefront Computations with Reduced Synchronization
Matrix computation algorithms often exhibit dependencies between neighboring elements inside loop nests such that the frontier between computed elements and those to be computed w...
Pierre-Nicolas Clauss, Jens Gustedt, Fréd&e...
PCM
2004
Springer
97views Multimedia» more  PCM 2004»
15 years 9 months ago
Frequency Weighting and Selective Enhancement for MPEG-4 Scalable Video Coding
In MPEG-4 scalable video coding, only a small portion of input data is coded in the base layer, and most signal components remain in enhancement layers. In this paper, we propose a...
Seung Hwan Kim, Yo-Sung Ho
AVBPA
2003
Springer
133views Biometrics» more  AVBPA 2003»
15 years 9 months ago
Visual Analysis of the Use of Mixture Covariance Matrices in Face Recognition
The quadratic discriminant (QD) classifier has proved to be simple and effective in many pattern recognition problems. However, it requires the computation of the inverse of the sa...
Carlos E. Thomaz, Duncan Fyfe Gillies
EPIA
2009
Springer
15 years 8 months ago
Item-Based and User-Based Incremental Collaborative Filtering for Web Recommendations
Abstract. In this paper we propose an incremental item-based collaborative filtering algorithm. It works with binary ratings (sometimes also called implicit ratings), as it is typi...
Catarina Miranda, Alípio Mário Jorge