Low rate uniform scalar quantization of memoryless gaussian sources

被引：4

作者：

Sheinin, Vadim ^{[1
]}

Jagmohan, Ashish ^{[1
]}

机构：

[1] IBM Corp, Thomas J Watson Res Ctr, Yorktown Hts, NY 10598 USA

来源：

2006 IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, ICIP 2006, PROCEEDINGS | 2006年

关键词：

source coding; scalar quantization; low-rate coding; memoryless Gaussian source; Wyner-Ziv coding; bit allocation;

D O I：

10.1109/ICIP.2006.312521

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

The low-rate (< 1 bits per sample) operational rate-distortion performance of uniform scalar quantizers for the memoryless Gaussian source is studied. Approximate analytical expressions for the operational rate-distortion function are derived, and the accuracy of the derived function is verified through simulation. It is shown that in the zero-rate limit the derived operational rate-distortion function is first-order optimal with respect to the Shannon lower bound. The derived function is used to study the performance of uniform scalar quantizers for the Gaussian Wyner-Ziv problem. Lastly, the derived low-rate rate-distortion function is used to provide improved low-rate bit allocation for jointly Gaussian vectors.

引用

页码：793 / +

页数：2

共 50 条

[21] Rate-Distortion Analysis and Modeling of Dead-Zone Plus Uniform Threshold Scalar Quantization for Generalized Gaussian Random Variables
Duan, Yizhou
Sun, Jun
Guo, Zongming
2012 DATA COMPRESSION CONFERENCE (DCC), 2012, : 395 - 395
[22] Uniform and non-uniform quantization of Gaussian processes
Seleznjev, Oleg
Shykula, Mykola
MATHEMATICAL COMMUNICATIONS, 2012, 17 (02) : 447 - 460
[23] Variance-Mismatched Fixed-Rate Scalar Quantization of Laplacian Sources
Na, Sangsin
IEEE TRANSACTIONS ON INFORMATION THEORY, 2011, 57 (07) : 4561 - 4572
[24] TRELLIS CODED QUANTIZATION OF MEMORYLESS AND GAUSS-MARKOV SOURCES
MARCELLIN, MW
FISCHER, TR
IEEE TRANSACTIONS ON COMMUNICATIONS, 1990, 38 (01) : 82 - 93
[25] ROBUST QUANTIZATION OF MEMORYLESS SOURCES USING DISPERSIVE FIR FILTERS
POPAT, K
ZEGER, K
IEEE TRANSACTIONS ON COMMUNICATIONS, 1992, 40 (11) : 1670 - 1674
[26] Low-rate hybrid Wyner-Ziv coding of Laplace-Markov source using uniform scalar quantization
Sheinin, Vadim
Jagmohan, Ashish
He, Dake
2008 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING, VOLS 1-12, 2008, : 1121 - 1124
[27] On the Uniform Quantization of a Class of Sparse Sources
Fraysse, Aurelia
Pesquet-Popescu, Beatrice
Pesquet, Jean-Christophe
IEEE TRANSACTIONS ON INFORMATION THEORY, 2009, 55 (07) : 3243 - 3263
[28] Low-Complexity Quantization of Discrete Memoryless Channels
Zhang, Jiuyang
Kurkoski, Brian M.
PROCEEDINGS OF 2016 INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY AND ITS APPLICATIONS (ISITA 2016), 2016, : 448 - 452
[29] Asymptotic Formulas for Variance-Mismatched Fixed-Rate Scalar Quantization of a Gaussian Source
Na, Sangsin
IEEE TRANSACTIONS ON SIGNAL PROCESSING, 2011, 59 (05) : 2437 - 2441
[30] On the Operational Rate-Distortion Performance of Uniform Scalar Quantization-Based Wyner-Ziv Coding of Laplace-Markov Sources
Sheinin, Vadim
Jagmohan, Ashish
He, Da-ke
IEEE TRANSACTIONS ON MULTIMEDIA, 2008, 10 (07) : 1225 - 1236

← 1 2 3 4 5 →