Embedded Coding of Astronomical Images

被引：0

作者：

Elnagahy, F. I. Y. ^{[1
]}

Haroon, A. A. ^{[1
]}

Azzam, Y. A. ^{[1
]}

Alawy, A. El-Bassuny ^{[1
]}

Elminir, H. K. ^{[2
]}

Simak, B. ^{[3
]}

机构：

[1] NRIAG, Astron Dept, Cairo 11421, Egypt

[2] NRIAG, Solar & Space Res Dept, Cairo 11421, Egypt

[3] Czech Tech Univ, Fac Elect Engn, Tech 2, Dept Telecommun Engn, Prague 16627 6, Czech Republic

来源：

ACTA POLYTECHNICA | 2006年 / 46卷 / 06期

关键词：

Image compression; Color RPSWS; wavelet sub-band partitioning; embedded coding; SPIHT; astronomical images;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Recursive partitioning of significant wavelet sub-bands (RPSWS) is an embedded rate scalable wavelet-based image coding algorithm. The RPSWS coder produces a fully embedded bit stream and encodes the image to exactly the desired bit rate (precise rate control). This paper investigates the applicability and the reliability of the RPSWS coder for coding astronomical images. Various types of astronomical images were compressed at different bit-rates using the RPSWS coder. The results were compared to the set partitioning in hierarchal trees coder (SPIHT), a well known embedded image corder. The comparison of the performance of the two algorithms was based on quantitative rate-distortion evaluations and subjective assessments of image quality.

引用

页码：25 / 31

页数：7

共 10 条

[1] Image coding using wavelet transform
Antonini, Marc
Barlaud, Michel
Mathieu, Pierre
Daubechies, Ingrid
[J]. IEEE TRANSACTIONS ON IMAGE PROCESSING, 1992, 1 (02) : 205 - 220
[2] A regularized image restoration algorithm for lossy compression in astronomy
Bobichon, Y
Bijaoui, A
[J]. EXPERIMENTAL ASTRONOMY, 1997, 7 (03) : 239 - 255
[3] Elnagahy F, 2004, P 8 INT STUD C EL EN, pIC12
[4] Elnagahy F, 2004, INT J WSCG, V12, P97
[5] Elnagahy F, 2004, CTU REPORTS A, P208
[6] Astronomical image compression
Louys, M
Starck, JL
Mei, S
Bonnarel, F
Murtagh, F
[J]. ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES, 1999, 136 (03): : 579 - 590
[7] Rabbani M, 1991, DIGITAL IMAGE COMPRE
[8] A new, fast, and efficient image codec based on set partitioning in hierarchical trees
Said, A
Pearlman, WA
[J]. IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, 1996, 6 (03) : 243 - 250
[9] EMBEDDED IMAGE-CODING USING ZEROTREES OF WAVELET COEFFICIENTS
SHAPIRO, JM
[J]. IEEE TRANSACTIONS ON SIGNAL PROCESSING, 1993, 41 (12) : 3445 - 3462
[10] WESTWATER R, 1997, REAL TIME VIDEO COMP

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