Sciweavers

70 search results - page 2 / 14
» Signal approximation using the bilinear transform
Sort
View
SIAMSC
2008
193views more  SIAMSC 2008»
13 years 5 months ago
Exact and Approximate Sparse Solutions of Underdetermined Linear Equations
Abstract. In this paper, we empirically investigate the NP-hard problem of finding sparsest solutions to linear equation systems, i.e., solutions with as few nonzeros as possible. ...
Sadegh Jokar, Marc E. Pfetsch
ICA
2007
Springer
13 years 11 months ago
Perception of Transformation-Invariance in the Visual Pathway
Abstract. Visual perception of transformation invariance, such as translation, rotation and scaling, is one of the important functions of processing visual information in the Brain...
Wenlu Yang, Liqing Zhang, Libo Ma
APPROX
2011
Springer
197views Algorithms» more  APPROX 2011»
12 years 5 months ago
Periodicity and Cyclic Shifts via Linear Sketches
We consider the problem of identifying periodic trends in data streams. We say a signal a ∈ Rn is p-periodic if ai = ai+p for all i ∈ [n − p]. Recently, Erg¨un et al. [4] pr...
Michael S. Crouch, Andrew McGregor
ISCAS
2006
IEEE
105views Hardware» more  ISCAS 2006»
13 years 11 months ago
Lossless multi-channel EEG compression
— This paper presents a method for losslessly compressing multi-channel electroencephalogram signals. The Karhunen-Loeve transform is used to exploit the inter-correlation among ...
Yodchanan Wongsawat, Soontorn Oraintara, T. Tanaka...
JMM2
2007
96views more  JMM2 2007»
13 years 5 months ago
A Framework for Linear Transform Approximation Using Orthogonal Basis Projection
—This paper aims to develop a novel framework to systematically trade-off computational complexity with output distortion in linear multimedia transforms, in an optimal manner. T...
Yinpeng Chen, Hari Sundaram