Pansharpening With Matting Model

被引:98
作者
Kang, Xudong [1 ]
Li, Shutao [1 ]
Benediktsson, Jon Atli [2 ]
机构
[1] Hunan Univ, Coll Elect & Informat Engn, Changsha 410082, Hunan, Peoples R China
[2] Univ Iceland, Fac Elect & Comp Engn, IS-101 Reykjavik, Iceland
来源
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING | 2014年 / 52卷 / 08期
基金
中国国家自然科学基金;
关键词
Component substitution; image fusion; image matting; pansharpening; PAN-SHARPENING METHOD; IMAGE FUSION; MULTISPECTRAL IMAGES; MULTIRESOLUTION FUSION; SPATIAL-RESOLUTION; CLASSIFICATION;
D O I
10.1109/TGRS.2013.2286827
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
Pansharpening aims at creating a fused image of high spatial and spectral resolutions through merging a panchromatic (PAN) image with a multispectral (MS) image. Component substitution is the most widely used pansharpening method. However, most research in this field focuses on improving the existing component substitution-based pansharpening methods, e. g., principal component substitution and intensity hue saturation transform. The major contribution of this paper is a novel component substitution framework based on an image matting model. The matting model refers to an MS image that can be decomposed into three components, i.e., alpha channel, spectral foreground, and background. Through substituting the alpha channel of the MS image with the PAN image, the high-resolution MS image is able to be reconstructed perfectly. Experiments performed on different data sets demonstrate that the proposed method outperforms several state-of-the-art pansharpening methods in terms of subjective and objective evaluation.
引用
收藏
页码:5088 / 5099
页数:12
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