双时相影像联合不确定性对变化检测精度的影响机理探索

doi:10.3969/j.issn.0255-8297.2020.06.008

应用科学学报 ›› 2020, Vol. 38 ›› Issue (6): 916-923.doi: 10.3969/j.issn.0255-8297.2020.06.008

• 信号与信息处理 • 上一篇

双时相影像联合不确定性对变化检测精度的影响机理探索

晁剑¹, 张慧芳², 许长军¹, 张鹏林²

1. 青海省地理空间信息技术与应用重点实验室, 青海西宁 810001;
2. 武汉大学遥感信息工程学院, 湖北武汉 430079

收稿日期:2019-11-06 发布日期:2020-12-08
通信作者: 张鹏林,教授,研究方向为时空数据分析、地理信息科学.E-mail:zpl@whu.edu.cn E-mail:zpl@whu.edu.cn
基金资助:
青海省地理空间信息技术与应用重点实验室基金（No.QHDX-2018-09）资助

Research on Influence Mechanism of Joint Uncertainty of Bio-images on Change Detection Accuracy

CHAO Jian¹, ZHANG Huifang², XU Changjun¹, ZHANG Penglin²

1. Geomatics Technology and Application Key Laboratory of Qinghai Province, Xining 810001, Qinghai, China;
2. School of Remote Sensing and Information Engineering, Wuhan University, Wuhan 430079, Hubei, China

Received:2019-11-06 Published:2020-12-08

摘要/Abstract

摘要： 研究了双时相影像的联合不确定性对变化检测结果精度的影响机理，为通过抑制不确定性的方法提高变化检测精度的工作奠定理论基础.首先利用联合熵对双时相影像的联合不确定性进行量化评估；进而基于空间统计相关方法，研究影像的联合不确定性与双时相影像变化检测精度指标之间的关系；最后建立双时相影像联合不确定性对变化检测结果精度的作用模型.实验结果表明：双时相影像的联合不确定性与变化检测结果的精度之间呈现出强负相关性，且对变化检测结果精度的影响模式具有线性特征.

关键词: 遥感影像, 不确定性, 变化检测, 影响机理

Abstract: This paper aims at studying the influence of image uncertainty on change detection accuracy, and revealing a theoretical basis for improving change detection accuracy by suppressing uncertainty. Firstly, joint entropy is used to evaluate the joint uncertainty of a two-phase image. Then, based on spatial statistical correlation method, the relationship between the joint uncertainty and the indexes characterizing the change detection results' accuracy of the two-phase image is studied. Finally, according to the relationship, an effect model about the joint uncertainty and the accuracy of change detection of the two-phase image is established. Experimental results show that the joint uncertainty of bio-images performs a strong negative-correlation with the accuracy of change detection results in an influence mode of linear feature.

Key words: remote sensing images, uncertainty, change detection, influence mechanism

中图分类号:

P751.1

晁剑, 张慧芳, 许长军, 张鹏林. 双时相影像联合不确定性对变化检测精度的影响机理探索[J]. 应用科学学报, 2020, 38(6): 916-923.

CHAO Jian, ZHANG Huifang, XU Changjun, ZHANG Penglin. Research on Influence Mechanism of Joint Uncertainty of Bio-images on Change Detection Accuracy[J]. Journal of Applied Sciences, 2020, 38(6): 916-923.

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双时相影像联合不确定性对变化检测精度的影响机理探索

Research on Influence Mechanism of Joint Uncertainty of Bio-images on Change Detection Accuracy

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