Image and Spectral Fidelity Study of Hyperspectral Remote Sensing Image Scaling up Based on Wavelet Transform | |
An Ni1,2; Ma Yi1,2; Bao Yuhai2; Tong, Q; Zhu, B | |
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/handle/2SI8HI0U/5078] |
专题 | 业务部门_海洋物理与遥感研究室 |
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,et al. Image and Spectral Fidelity Study of Hyperspectral Remote Sensing Image Scaling up Based on Wavelet Transform[C]. 见:. |
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