光子学报, 2018, 47 (4): 0410001, 网络出版: 2018-03-15
基于谱段关联的近红外图像模拟方法
Near-infrared Image Simulation Based on Spectral Correlation Method
遥感图像 近红外图像模拟 谱段关联性 基于GPU的SIFT算法 真彩色合成图像 去云去雾 Remote sensing image Near-infrared image simulation Spectral correlation SIFT algorithm based on GPU Synthesis of true color image Removal of cloud and haze
摘要
提出一种基于谱段关联的近红外图像模拟方法, 分析遥感图像成像链路模型, 以及卫星载荷传感器可见光多光谱谱段和全色谱段的关联性, 计算得到了谱段关联系数, 并基于谱段的关联系数生成模拟近红外图像.为了提高近红外模拟图像生成的速度, 利用基于GPU的SIFT算法对全色图像与多光谱图像进行匹配.采用所提方法利用吉林一号光学A星的数据, 生成模拟近红外图像, 单景图像计算时间优于3 s, 该方法对合成真彩色图像和去云去雾均有较好的效果.
Abstract
A near-infrared image simulation method based on spectral correlation is proposed. The remote sensing image-link model, and spectral correlation between visible multispectral and panchromatic for satellite sensors were analyzed, and the spectral correlation coefficient was calculated. Thus the simulation near-infrared image was generated based on the spectral correlation coefficient. In order to improve the speed of near-infrared image generation, the SIFT algorithm based on GPU was used. The proposed method utilized the data of Jilin-1A optical sensor to generate the simulation near-infrared images. The computation time of individual image was better than 3 s, and the simulation image had better effects for synthesis of true color image and removal of cloud and haze.
武红宇, 王灵丽, 钟兴, 苏志强, 陈关州, 白杨. 基于谱段关联的近红外图像模拟方法[J]. 光子学报, 2018, 47(4): 0410001. WU Hong-yu, WANG Ling-li, ZHONG Xing, SU Zhi-qiang, CHEN Guan-zhou, BAI Yang. Near-infrared Image Simulation Based on Spectral Correlation Method[J]. ACTA PHOTONICA SINICA, 2018, 47(4): 0410001.
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