基于华浩超算平台几何精校正模块的波段配准研究

Research the Band Registration Based on the Sinovine Geometric Precision Correction Module

KOMPSAT3(阿里郎三号)卫星携带高分辨率0.7 m全色和2.8 m多光谱有效载荷,回访周期短,覆盖范围广,得到了广泛的应用。但由于受太阳辐射、大气干扰、云折射等物理因素的影响,造成波段之间在局部区域图像上发生非线性几何畸变,导致多光谱假彩色合成数据产生重叠现象,严重影响多光谱数据质量。本文针对在极端条件下产生的图像局部非线性几何畸变现象,探索国内外各种波段间配准方法,研究发现基于华浩超算平台的几何精校正算法能很好地达到波段间配准效果,消除了多光谱假彩色合成数据的影像重叠现象。

KOMPSAT3 satellite carries a high - resolution 0.7 meters panchromatic sensor and 2.8 meters multi - spectral sensors, due to havingshort returning cycle and wide covering range, has been widely used. However, Influenced by precipitation solar radia- tion, atmospheric interference, cloud refraction and other physical factors, nonlinear geometric distortion inlocal regions between the band images, the Multi -spectral：syntheticdata generatesthe color overlaps, so the quality of muhispectral data is affected seriously. In this paper, against the nonlinear partial geometric distortion phenomenon images under the extreme conditions, using band registra- tion methods at home and abroad,the study found applying the SinovineSIS geometric precision correction can achieve the band regis- tration effect perfectly, eliminating the image overlaps of false color composite multi - spectral data.