数字正射影像镶嵌的质量评价方法

doi:10.3969/j.issn.0255-8297.2018.03.006

Abstract

Abstract:

For the quality evaluation of the Digital Orthophoto mosaic, a quantitative evaluation method, which is based on the buffer images and includes both the radiometric consistency and geometric consistency indexes, is presented in this paper. Firstly, the buffer zones are built around the seamline, and the buffer images are obtained from the left and right images corresponding to the seamline. Then based on this, the quality evaluation indexes can be calculated, among them, the radiometric consistency is mainly evaluated by the indexes of the gray contrast coefcient and the Uniform Intensity-Distribution, the geometric consistency is mainly evaluated by using the offset distance of the SURF (speeded-up robust features) feature matching points. Finally, the evaluation results of mosaic quality are obtained. Using 36 urban orthophotos of the Vaihingen area of Germany and 36 mountain orthophotos of the Enshi area of China as an experiment data set, the quality evaluation was carried out for the mosaic results respectively obtained by three business softwares of ArcGIS, OrthoVista and DPGrid, which verifes the effectiveness of the proposed method.

Key words: digital orthophoto, quality evaluation, radiometric consistency, mosaic, geometric consistency

CLC Number:

P237

ZHANG Sha-sha, WANG Shu-gen. Quality Evaluation Method for the Results of Digital Orthophoto Mosaic[J]. Journal of Applied Sciences, 2018, 36(3): 461-470.

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Quality Evaluation Method for the Results of Digital Orthophoto Mosaic

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