Journal of Applied Sciences ›› 2020, Vol. 38 ›› Issue (6): 916-923.doi: 10.3969/j.issn.0255-8297.2020.06.008

• Signal and Information Processing • Previous Articles    

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

CHAO Jian1, ZHANG Huifang2, XU Changjun1, ZHANG Penglin2   

  1. 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

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

CLC Number: