南京林业大学学报（自然科学版）Issue(3)：18-24,7.DOI:10.3969/j.issn.1000-2006.2015.03.004
TM与SPOT5影像HIS小波融合方法及应用分析
IHS integrated wavelet fusion algorithms and their effects evaluation based on TM and SPOT5 imagery
摘要
Abstract
IHS transform can retain the complete information of high spatial resolution, and the wavelet transform fusion imaging has the better spectral information, therefore, the combination of the two transform image fusion can take advan⁃tage of their respective strengths to provide high⁃quality images for the subsequent information extraction. Based on the analyses of multi⁃sources data fusion methods at different levels, Beijing Miyun Reservoir and its surroundings were se⁃lected as the study area in this research. The data fusion methods including IHS transform, wavelet transform and inte⁃grated wavelet⁃IHS transform were firstly used to experiment with Landsat TM multispectral image and SPOT5 panchro⁃matic image. Furthermore, in the fusion methods of wavelet transform and IHS wavelet transform, the two⁃dimensional continuous and discrete wavelet transform were used respectively, and the effects of the wavelet transformation layer numbers as well as the selection of the low⁃frequency coefficients and the high⁃frequency coefficients on the resulting fused images were discussed. Finally, the fusion results were evaluated by using subjectively qualitative method and ob⁃jectively quantitative indices, after establishing elaborated ratings to each weight of the index. The results showed that the two⁃dimensional continuous wavelet method with two layers had better comprehensive effects among the three methods of wavelet, while IHS transform fusion method combined with the two⁃dimensional continuous wavelet method with two lay⁃ers could maintain better spectral and spatial resolution, which mean the image quality could be improved significantly by fusing the data of Landsat TM and SPOT5 by using wavelet transform integrated with IHS, providing data security for image classification,information extraction and vegetation monitoring based on the remote sensing technique.关键词
多源数据融合/IHS变换/小波变换/IHS小波变换Key words
multi-source data fusion/IHS transform/wavelet transform/wavelet transform integrated with IHS分类
农业科技引用本文复制引用
白金婷,张晓丽,王书涵,吴石磊..TM与SPOT5影像HIS小波融合方法及应用分析[J].南京林业大学学报（自然科学版）,2015,(3):18-24,7.基金项目
省部共建森林培育与保护教育部重点实验室资助项目（2009GJSYS02）；教育部高等学校博士学科点专项科研基金资助课题 （）
