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» On sparse signal representations
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TSP
2010
15 years 1 months ago
Noninvertible gabor transforms
Abstract--Time-frequency analysis, such as the Gabor transform, plays an important role in many signal processing applications. The redundancy of such representations is often dire...
Ewa Matusiak, Tomer Michaeli, Yonina C. Eldar
ICASSP
2011
IEEE
14 years 10 months ago
Message-passing for base-calling in sequencing-by-synthesis systems
Performance of DNA sequencing-by-synthesis systems is fundamentally limited by the stochastic nature of the underlying biochemical process. We develop a novel graphical representa...
Sang Hyun Lee, Manohar Shamaiah, Haris Vikalo
ICASSP
2009
IEEE
16 years 1 months ago
Audio classification from time-frequency texture
Time-frequency representations of audio signals often resemble texture images. This paper derives a simple audio classification algorithm based on treating sound spectrograms as ...
Guoshen Yu, Jean-Jacques E. Slotine
IPMI
2005
Springer
16 years 1 days ago
Linearization of Mammograms Using Parameters Derived from Noise Characteristics
A method is proposed for converting digitized mammograms to a normalized representation, in which pixel values are linearly related to the logarithm of x-ray exposure. This method ...
Nico Karssemeijer, Peter R. Snoeren, Wei Zhang
MM
2010
ACM
158views Multimedia» more  MM 2010»
15 years 4 months ago
Image segmentation with patch-pair density priors
In this paper, we investigate how an unlabeled image corpus can facilitate the segmentation of any given image. A simple yet efficient multi-task joint sparse representation model...
Xiaobai Liu, Jiashi Feng, Shuicheng Yan, Hai Jin