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ICASSP
2008
IEEE
15 years 4 months ago
Stability analysis of complex maximum likelihood ica using Wirtinger calculus
The desirable asymptotic optimality properties of the maximum likelihood (ML) estimator make it an attractive solution for performing independent component analysis (ICA) as well....
Hualiang Li, Tülay Adali
73
Voted
ICASSP
2008
IEEE
15 years 4 months ago
A detection algorithm for zero-quantized DCT coefficients in JPEG
The discrete cosine transform (DCT) is widely used in image/video coding standards. However, since most DCT coefficients will be quantized to zeros, a large number of redundant co...
Jin Li, Jarmo Takala, Moncef Gabbouj, Hexin Chen
ICASSP
2008
IEEE
15 years 4 months ago
Collusion-aware traitor tracing in multimedia fingerprinting using sparse signal approximation
We pose the problem of tracing traitors, who have colluded to circumvent a multimedia fingerprinting system, as a sparse underdetermined linear problem. We propose a range of det...
David P. Varodayan, Christine Pépin
ICASSP
2008
IEEE
15 years 4 months ago
High-performance scheduling algorithm for partially parallel LDPC decoder
In this paper, we propose a new scheduling algorithm for the overlapped message passing decoding, which can be applied to general low-density parity check (LDPC) codes. The partia...
Cheng-Zhou Zhan, Xin-Yu Shih, An-Yeu Wu
ICASSP
2008
IEEE
15 years 4 months ago
Variance reduction with neighborhood smoothing for local intrinsic dimension estimation
Local intrinsic dimension estimation has been shown to be useful for many tasks such as image segmentation, anomaly detection, and de-biasing global dimension estimates. Of partic...
Kevin M. Carter, Alfred O. Hero