Wavelet based hierarchical coding scheme for radar image compression

被引：0

作者：

Sheng, Wen ^{[1
]}

Jiao, Xiaoli ^{[1
]}

He, Jifeng ^{[2
]}

机构：

[1] Air Force Radar Acad, Dept Early Warning & Detecting Equipment, Wuhan 430019, Peoples R China

[2] 23 Res Inst, Mil Representat Off, Beijing 100871, Peoples R China

来源：

MIPPR 2007: MEDICAL IMAGING, PARALLEL PROCESSING OF IMAGES, AND OPTIMIZATION TECHNIQUES | 2007年 / 6789卷

关键词：

image compression; radar image; wavelet decomposition; run-length coding; Huffman coding;

D O I：

10.1117/12.745655

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

This paper presents a wavelet based hierarchical coding scheme for radar image compression. Radar signal is firstly quantized to digital signal, and reorganized as raster-scanned image according to radar's repeated period frequency. After reorganization, the reformed image is decomposed to image blocks with different frequency band by 2-D wavelet transformation, each block is quantized and coded by the Huffman coding scheme. A demonstrating system is developed, showing that under the requirement of real time processing, the compression ratio can be very high, while with no significant loss of target signal in restored radar image.

引用

页数：5

共 5 条

[1]

*AN DEV, 2005, 611 ADV

[2]

Coifman R. R., 1995, LECT NOTES STAT, V103, P125, DOI [DOI 10.1007/978-1-4612-2544-7_9, 10.1002/cpa.3160410705, DOI 10.1002/CPA.3160410705]

[3]

Galloway MM., 1975, COMPUTER GRAPHICS IM, V4, P172, DOI DOI 10.1016/S0146-664X(75)80008-6

[4] MULTIFREQUENCY CHANNEL DECOMPOSITIONS OF IMAGES AND WAVELET MODELS [J].

MALLAT, SG .

IEEE TRANSACTIONS ON ACOUSTICS SPEECH AND SIGNAL PROCESSING, 1989, 37 (12) :2091-2110

[5]

Skolink M.I., 1990, Radar Handbook, V2nd ed.

← 1 →