Image and Spectral Fidelity Study of Hyperspectral Remote Sensing Image Scaling up Based on Wavelet Transform

doi:10.1117/12.2204853

	Image and Spectral Fidelity Study of Hyperspectral Remote Sensing Image Scaling up Based on Wavelet Transform
	An Ni 1,2; Ma Yi 1,2; Bao Yuhai 2
	2015
关键词	Wavelet transform image scaling up image and spectral fidelity
卷号	9669
DOI	10.1117/12.2204853
英文摘要	Wavelet transform is a kind of effective image-scale transformation method, which can achieve multi-scale transformation by distinguishing the low-frequency information and the high-frequency information. Hyperspectral remote sensing data combining image with spectrum has almost continuous spectrum that is the important premise of extracting hyperspectral image information, while scale transformation will inevitably lead to the change of image and spectra. Therefore, it is important to study the image and spectral fidelity after wavelet transform. In this paper, the Proba CHRIS hyperspectral remote sensing image of Yellow River Estuary Wetland is used to investigate the image and spectral fidelity of image transformed by wavelet which remained the low-frequency information. The level 1-3 of up-scale images are obtained and then compared with the original. Then image and spectral fidelity is quantitatively analyzed. The results show that the image fidelity is slightly reduced by up-scale transformation, but near-infrared images have a larger distortion than other bands. With the increasing scaling up, the distortion of spectrum is more and more great, but spectral fidelity is overall well. For the typical wetland objects, Phragmites austrialis has the best spectral correlation, Spartina has a small spectra change, and aquaculture water spectral distortion is most remarkable.
会议录	REMOTE SENSING OF THE ENVIRONMENT
会议录出版者	SPIE-INT SOC OPTICAL ENGINEERING
会议录出版地	1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
语种	英语
WOS研究方向	Engineering ; Remote Sensing ; Optics
WOS记录号	WOS:000359670900009
内容类型	会议论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/27151]
专题	自然资源部第一海洋研究所
通讯作者	Ma Yi
作者单位	1.State Ocean Adm, Inst Oceanog 1, Qingdao 266061, Peoples R China 2.Inner Mongolia Normal Univ, Hohhot 010000, Peoples R China
推荐引用方式 GB/T 7714	An Ni,Ma Yi,Bao Yuhai. Image and Spectral Fidelity Study of Hyperspectral Remote Sensing Image Scaling up Based on Wavelet Transform[C]. 见:.