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标题

一种融合地形阴影模型和YUV 亮度分量的 遥感图像反立体校正方法

作者

姜 涛 朱文泉 周夏飞 郑周涛 张东海 马国霞 赵学涛

机构

北京师范大学地表过程与资源生态国家重点实验室;北京师范大学地表过程与资源生态国家重点实验室;环境保护部环境规划院

摘要

遥感图像上所呈现出的山脊与沟谷颠倒的视觉效果被称为遥感图像反立体现象,该现象与人类的视觉习惯 相冲突,从而严重干扰人们对遥感图像的目视判读.本文设计了一种YUV 亮度分量乘法融合方法,其技术核心在于图 像阴影区增强、地形夸张、地形阴影模型与YUV亮度分量相乘融合3个方面.实验表明,该方法充分考虑了山区图像具 有深大阴影这一特征,由它得到的正立体图像立体感强、色调逼真、亮度均衡,其结果可广泛应用于地图导航、规划设计、 资源监测等领域.

关键词

遥感;反立体现象;正立体化;地形阴影模型;YUV

引用

姜 涛, 朱文泉, 周夏飞, 郑周涛, 张东海, 马国霞, 赵学涛.一种融合地形阴影模型和YUV 亮度分量的 遥感图像反立体校正方法[J]. 北京师范大学学报(自然科学版),2015,51(Sup.1):38-43.

基金

国家自然科学基金资助项目(41371389);地表过程与资源生态国家重点实验室资助项目(2013-ZY-14);环保公益基金资助项目(201309043)

分类号

TP751.1

DOI

10.16360/j.cnki.jbnuns.2015.s1.006

Title

A new technique to remove false topographic perception by the fusion of shaded relief model and YUV luma component

Author

ZHU Wenquan, JIANG Tao, ZHOU Xiafei, ZHENG Zhoutao, ZHANG Donghai, Ma Guoxia, ZHAO Xuetao

Affiliations

State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University; College of Resources Science and Technology, Beijing Normal University;Chinese Academy for Environmental Planning

Abstract

Appearance of valleys as ridges, and vise versa in remote sensing images of rugged terrain is termed false topographic perception (FTP). Serious conflict between FTP and human vision habit hinders visual interpretation of remote sensing images. A technique to remove FTP by the fusion of shaded relief model (SRM) and YUV luma component was proposed. Key points in this technique involved enhancement of shaded areas, exaggeration of topographic relief and multiplicative fusion of SRM and YUV luma component. Results from a test image indicated that this technique could remove FTP effectively because it fully considered the effect from deep shades in rugged terrains. The produced image showed significant true topographic perception with similar colors as original images with balanced brightness. The derived products with this technique could be widely used in navigation mapping, territorial planning, natural resource monitoring.

Key words

remote sensing;false topographic perception phenomenon;restoring true topographic perception;shaded relief model;YUV

cite

ZHU Wenquan, JIANG Tao, ZHOU Xiafei, ZHENG Zhoutao, ZHANG Donghai, Ma Guoxia, ZHAO Xuetao. A new technique to remove false topographic perception by the fusion of shaded relief model and YUV luma component[J]. Journal of Beijing Normal University(Natural Science),2015,51(Sup.1):38-43.

DOI

10.16360/j.cnki.jbnuns.2015.s1.006

Copyright © 2014 Journal of Beijing Normal University (Natural Science)
Designed by Mr. Sun Chumin. Email: cmsun@mail.bnu.edu.cn