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» On Lattice Quantization Noise
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ISCAS
2002
IEEE
72views Hardware» more  ISCAS 2002»
15 years 2 months ago
Delta-sigma modulator topologies with high immunity to pattern noise
This paper addresses the problem of pattern noise encountered in single-stage delta-sigma modulators in the presence of a DC input signal. By utilizing state-space matrices, we ex...
G. Fischer, Deokhwan Hyun
ICASSP
2011
IEEE
14 years 1 months ago
Synthesis filter bank optimization with lattice structure constraints in 2D separable image processing
In one-dimensional signal processing, the perfect reconstruction (PR) synthesis FB is not unique for a given analysis LP oversampled filter bank (FB). Optimal Design methods have...
Li Chai, Yuxia Sheng, Jingxin Zhang
ISCAS
1999
IEEE
70views Hardware» more  ISCAS 1999»
15 years 2 months ago
On optimization of filter banks with denoising applications
The problem of optimization of subband coders for given input statistics has received considerable attention in recent literature. The goal in these works has been to maximize the...
Sony Akkarakaran, P. P. Vaidyanathan
TASLP
2010
157views more  TASLP 2010»
14 years 4 months ago
HMM-Based Reconstruction of Unreliable Spectrographic Data for Noise Robust Speech Recognition
This paper presents a framework for efficient HMM-based estimation of unreliable spectrographic speech data. It discusses the role of Hidden Markov Models (HMMs) during minimum mea...
Bengt J. Borgstrom, Abeer Alwan
ICIP
2001
IEEE
15 years 11 months ago
Color error diffusion with generalized optimum noise shaping
Wc optimizc thc noisc shaping bchavior of color crror diffusion by designing an optirnizcd crror filtcr bascd on a proposed noisc shaping modcl for color crror diffusion and a gcn...
Niranjan Damera-Venkata, Brian L. Evans