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A Practical Compressed Sensing-Based Pan-Sharpening Method

delete2012-07-01
delete146
PRE
AI
C
Cheng Jiang *
张鸿雁 封面图
张鸿雁 (Hongyan Zhang)
H
Huanfeng Shen
L
Liangpei Zhang
DOI:10.1109/LGRS.2011.2177063delete
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摘要

摘要

En 中文
High-resolution multispectral (HRM) images are widely used in many remote sensing applications. Using the pan-sharpening technique, a low-resolution multispectral (LRM) image and a high-resolution panchromatic (HRP) image can be fused to an HRM image. This letter proposes a new compressed sensing (CS)-based pan-sharpening method which views the image observation model as a measurement process in the CS theory and constructs a joint dictionary from LRM and HRP images in which the HRM is sparse. The novel joint dictionary makes the method practical in fusing real remote sensing images, and a tradeoff parameter is added in the image observation model to improve the results. The proposed algorithm is tested on simulated and real IKONOS images, and it results in improved image quality compared to other well-known methods in terms of both objective measurements and visual evaluation.
Keyword:
Compressed sensing (CS)
image fusion
joint dictionary
tradeoff

期刊

IEEE Geoscience and Remote Sensing Magazine 封面图
IEEE Geoscience and Remote Sensing Magazine
IF:
16.4
论文数:
1.0W
被引数:
5.1K

机构

W
wuhan university
学者数:
8.1W
论文数: 5.8W
被引数: 70
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