A practical postprocessing technique for real-time block-based coding system

被引：27

作者：

Chan, YH ^{[1
]}

Hong, SW ^{[1
]}

Siu, WC ^{[1
]}

机构：

[1] Hong Kong Polytech Univ, Dept Elect Engn, Kowloon, Hong Kong

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY | 1998年 / 8卷 / 01期

关键词：

block-based coding; codec; deblocking; image restoration; JPEG; postprocessing technique; vector quantization;

D O I：

10.1109/76.660822

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, a noniterative postprocessing method is proposed to restore the images encoded with block-based compression standards such as Joint Photographic Experts Group (JPEG). This method classifies small local boundary regions according to their intensity distribution and then selects appropriate linear predictors to estimate the corresponding boundary pixels in the regions. This approach is easy to implement and we found in our simulations that its restoration performance was very respectable compared with the reported postprocessing methods.

引用

页码：4 / 8

页数：5

共 16 条

[1]

Aharoni G., 1993, Journal of Mathematical Imaging and Vision, V3, P7, DOI 10.1007/BF01248401

[2] In search of the optimal searching sequence for VQ encoding [J].

Chan, YH ;

Siu, WC .

IEEE TRANSACTIONS ON COMMUNICATIONS, 1995, 43 (12) :2891-2893

[3]

CHAN YH, 1994, J VIS COMMUN IMAGE R, V5, P95

[4]

HONG SW, 1995, P IEEE ISCAS 95 APR, V2, P773

[5] ALGORITHM FOR VECTOR QUANTIZER DESIGN [J].

LINDE, Y ;

BUZO, A ;

GRAY, RM .

IEEE TRANSACTIONS ON COMMUNICATIONS, 1980, 28 (01) :84-95

[6] THE LOT - TRANSFORM CODING WITHOUT BLOCKING EFFECTS [J].

MALVAR, HS ;

STAELIN, DH .

IEEE TRANSACTIONS ON ACOUSTICS SPEECH AND SIGNAL PROCESSING, 1989, 37 (04) :553-559

[7] AN OPTIMIZATION APPROACH FOR REMOVING BLOCKING EFFECTS IN TRANSFORM CODING [J].

MINAMI, S ;

ZAKHOR, A .

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, 1995, 5 (02) :74-82

[8]

Orfanidis S.J., 1988, Optimum Signal Processing: An Introduction

[9]

OROURKE TP, 1994, P SOC PHOTO-OPT INS, V2182, P90, DOI 10.1117/12.171094

[10]

Pennebaker W.B., 1993, JPEG STILL IMAGE DAT

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