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94
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WCNC
2008
IEEE
15 years 4 months ago
Unequal Error Protection Irregular Over-Complete Mapping for Wavelet Coded Wireless Video Telephony Using Iterative Source and C
— Since the different bits of the compressed video sequence produced by the BBC’s wavelet-based video codec exhibit different error sensitivity, efficient Unequal Error Protec...
Anh Quang Pham, Lie-Liang Yang, Lajos Hanzo
SBBD
2004
114views Database» more  SBBD 2004»
14 years 11 months ago
On Coding Navigation Paths for In-Memory Navigation in Persistent Object Stores
We consider matrix index and navigation index approaches to in-memory navigation of persistent object stores. We demonstrate that both approaches can be re-formulated independentl...
Markus Kirchberg, Klaus-Dieter Schewe, Alexei Tret...
MMSEC
2006
ACM
231views Multimedia» more  MMSEC 2006»
15 years 3 months ago
JPEG2000-based secure image authentication
We present an efficient JPEG2000-based image authentication scheme, which is robust to JPEG compression and other allowed signal processing operations. Positive wavelet-based wate...
Mathias Schlauweg, Dima Pröfrock, Erika M&uum...
79
Voted
SIAMSC
2010
215views more  SIAMSC 2010»
14 years 8 months ago
A Fast Algorithm for Sparse Reconstruction Based on Shrinkage, Subspace Optimization, and Continuation
We propose a fast algorithm for solving the ℓ1-regularized minimization problem minx∈Rn µ x 1 + Ax − b 2 2 for recovering sparse solutions to an undetermined system of linea...
Zaiwen Wen, Wotao Yin, Donald Goldfarb, Yin Zhang
ICASSP
2010
IEEE
14 years 9 months ago
Motion estimation from compressed linear measurements
This paper presents a novel algorithm for computing the relative motion between images from compressed linear measurements. We propose a geometry based correlation model that desc...
Vijayaraghavan Thirumalai, Pascal Frossard