Author:
Liu Guo,Wang Yizhe,Ma Cuifeng,Zhang Xueli,Ma Na
Abstract
Abstract
With its advantages of high resolution and large field of view, GF-1 WFV data is able to provide high precision, wide range of spatial observation data and image mapping products. Image Mosaic is an indispensable part of remote sensing image mapping. This paper summarizes the main strategy flow of GF-1 WFV data Mosaic. Some key processing techniques were discussed including true color enhancement, seam line extraction, color normalization. Analyzed of some typical study area, the image was mosaic tested by the method of gray-scale transformation enhancement, minimum gray difference determination algorithm and overlapping image dodging. Relevant strategies and methods are applied to the production of “satellite remote sensing image of Guangdong-Hong Kong-Macao Greater Bay Area nature reserve" and “satellite remote sensing image of Wanjiang economic belt". The texture color of the result image can present the characteristics of natural transition, without obvious color difference, with rich feature information, clear layers and good visibility. It is helpful to systematically and intuitively understand the current situation of regional urban construction and natural resources, and is able to provide high-quality image data for comprehensive geological survey and scientific research. Actual works has proved that the GF-1 WFV data mosaic strategy and method summarized in this paper have achieved good results in practical applications. It can provide reference for other similar satellite image mosaic work and has strong practical guiding significance.
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