A Bidimensional Empirical Mode Decomposition Method for Fusion of Multispectral and Panchromatic Remote Sensing Images

Remote Sensing

Weihua Dong²  Xian𠆞n Li²  Xiangguo Lin¹ 

[1] Key Laboratory of Mapping from Space, Chinese Academy of Surveying and Mapping, Beijing 100830, China; E-Mail:;State Key Laboratory of Remote Sensing Science, Beijing Key Laboratory for Remote Sensing of Environment and Digital Cities and School of Geography and Remote Sensing Science, Beijing Normal University, Beijing 100875, China

关键词: bidimensional empirical mode decomposition;    image fusion;    multispectral image;    panchromatic image;    visual and quantitative analysis;   

DOI  :  10.3390/rs6098446

来源: mdpi

【 摘 要 】

This article focuses on the image fusion of high-resolution panchromatic and multispectral images. We propose a new image fusion method based on a Hue-Saturation-Value (HSV) color space model and bidimensional empirical mode decomposition (BEMD), by integrating high-frequency component of panchromatic image into multispectral image and optimizing the BEMD in decreasing sifting time, simplifying extrema point locating and more efficient interpolation. This new method has been tested with a panchromatic image (SPOT, 10-m resolution) and a multispectral image (TM, 28-m resolution). Visual and quantitative assessment methods are applied to evaluate the quality of the fused images. The experimental results show that the proposed method provided superior performance over conventional fusion algorithms in improving the quality of the fused images in terms of visual effectiveness, standard deviation, correlation coefficient, bias index and degree of distortion. Both five different land cover types WorldView-II images and three different sensor combinations (TM/SPOT, WorldView-II, 0.5 m/1 m resolution and IKONOS, 1 m/4 m resolution) validated the robustness of BEMD fusion performance. Both of these results prove the capability of the proposed BEMD method as a robust image fusion method to prevent color distortion and enhance image detail.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland