摘要
从高分辨率航空遥感影像的阴影处理角度出发,分析了阴影区域在彩色空间上的特征;采用HIS彩色空间3个通道的联合阈值测度进行阴影检测,并利用高斯函数进行地物纹理几何细节的多尺度抽取,提出了针对影像灰度图的阴影补偿方法。实验证明,该方法能够在最大限度保留阴影区域原始特征的前提下,对阴影区域信息进行补偿,保证了影像后续处理的准确度和可靠性。
From the shadow processing of high-resolution aerial remote sensing images, this paper analyzed the features of shadow in color space. Using combined thresholds of 3 channels in HIS color space and Gaussian function, the authors detected shadow area and its multi -scale geometric details which can compensate shadow area. The experiments prove that this method can maximize the retention of the original features in shadow area and get more reasonable compensation results, thus ensuring accuracy and reliability of the follow-up imaging.
出处
《国土资源遥感》
CSCD
北大核心
2014年第4期23-28,共6页
Remote Sensing for Land & Resources
基金
国家自然科学基金项目(编号:41171292
41322010)资助
关键词
阴影检测
HIS彩色空间
几何细节
阴影补偿
shadow detection
HIS color space
geometric details
shadow compensation
