基于影像匹配接边纠正的数字正射影像的镶嵌技术

摘要

The traditional mosaic technology obtains fainted result by difference of geometry and color. This paper introduces mosaic technology of Digital Orthophoto Maps, the technology includes preprocess technology, mosaic technology,all mosaic flow chart and application. The preprocess technology includes color alteration, image match, Cross Area Correction, color alteration for altering the difference of color, and image match and Cross Area for altering the correction difference of geometry. The mosaic technology includes auto mosaicking, mosaicking by drawing a mosaic line, gray mosaicking, color mosaicking, mosaicking by drawing a mosaic line for mosaicking complex area by drawing a mosaic line,gray mosaicking, color mosaicking for eliminating the difference of geometry and color.%传统镶嵌技术经常由于两幅影像的几何差异与辐射度差异，使得镶嵌结果影像出现模糊或假边界。该文介绍了一种数字正射影像的镶嵌技术，包括预处理技术、镶嵌技术、整个镶嵌流程以及应用前景。其中预处理技术包括色彩平衡、影像匹配与接边纠正技术，色彩平衡用于辐射度改正，影像匹配与接边纠正用于几何差异的改正。镶嵌技术包括自动镶嵌、镶嵌线镶嵌、基天灰度的镶嵌与基于彩色的镶嵌等技术，镶嵌线镶嵌用于接边区域比较复杂需要画镶嵌线来辅助镶嵌，基于灰度的镶嵌与基于彩色的镶嵌用于进一步消除影像几何差异与辐射度差异。