Land-Based Hyperspectral Imaging and Core Drive Model for Ground Object Classification

被引:0
|
作者
Wang Qiang-hui [1 ]
Shen Xue-ju [1 ]
Zhou Bing [1 ]
Hua Wen-shen [1 ]
Ying Jia-ju [1 ]
Zhao Jia-le [1 ]
机构
[1] Army Engn Univ PLA, Elect & Opt Engn Dept, Shijiazhuang 050003, Hebei, Peoples R China
关键词
Hyperspectral imaging; Land-based conditions; Scattering coefficients; Ground object classification; Similarity measurement;
D O I
10.3964/j.issn.1000-0593(2023)02-0614-09
中图分类号
O433 [光谱学];
学科分类号
0703 ; 070302 ;
摘要
Hyperspectral imaging technology is an advanced image acquisition technology which can not only obtain the spatial information of ground objects but also the spectral information of ground objects to obtain the three-dimensional image data of atlas integration. Its spectral resolution is very high, and its curve is nearly continuous. It can effectively detect ground objects that cannot be detected in multispectral imaging technology and has been widely used in target detection, ground object classification and image compression. Among them, ground object classification can distinguish different types of ground objects in images, and the classification results are the basic data of thematic mapping, which has achieved good results in military, agricultural, geological and other fields.Ground object classification refers to assigning category labels to pixels in images, that is, assigning the same labels to similar ground objects and different labels to different kinds of ground objects. According to whether the target spectral information has been obtained before classification, ground object classification can be divided into supervised classification, semi-supervised classification and unsupervised classification. However, the spectrum of ground objects is greatly affected by imaging conditions, especially for land-based imaging. The spectrum of ground objects will change to a certain extent under different imaging conditions and is no longer strictly unique so that it cannot be accurately classified according to the spectral data of ground objects under unknown imaging conditions. However, the scattering ratio coefficient of the same ground object is unique, has nothing to do with imaging conditions or detection direction, is not affected by the characteristics of bidirectional reflection, and is only related to the type of ground object. It is a physical quantity reflecting the essential attributes of ground objects, so it can be used as the basis for classifying them. In this paper, the scattering of various ground objects are measured under ground-based imaging conditions, the measurement process of scattering weights is described in detail and the fitting ability of the kernel-driven model is verified. Through comparison, it is found that the scattering coefficients of different ground objects have great differences, and then the method of using scattering coefficients to classify ground objects is put forward.In this paper, two sets of data are used to verify the classification method, and three similarity measures, including projection, distance and amount of information, are used to measure the classification results quantitatively.The experimental results show that the scattering coefficients of the same ground object are almost the same, which has nothing to do with the imaging conditions but only with the type of ground object. The scattering coefficients of different ground objects are different, and using scattering coefficients can effectively achieve the classification of ground objects, and good results have been achieved.
引用
收藏
页码:614 / 622
页数:9
相关论文
共 11 条
  • [1] Constrained subpixel target detection for remotely sensed imagery
    Chang, CI
    Heinz, DC
    [J]. IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2000, 38 (03): : 1144 - 1159
  • [2] Adaptation of Mutual Information Measure by Using Image Gradient Information
    Cheah, Tan Chye
    Shanmugam, S. Anandan
    Ang, Li-Minn
    [J]. JOURNAL OF MEDICAL IMAGING AND HEALTH INFORMATICS, 2012, 2 (03) : 313 - 319
  • [3] Cheng Chen, 2016, Journal of Atmospheric and Environmental Optics, V11, P211, DOI 10.3969/j.issn.1673-6141.2016.03.007
  • [4] Information Entropy As a Basic Building Block of Complexity Theory
    Gao, Jianbo
    Liu, Feiyan
    Zhang, Jianfang
    Hu, Jing
    Cao, Yinhe
    [J]. ENTROPY, 2013, 15 (09) : 3396 - 3418
  • [5] Anomaly detection in hyperspectral imagery based on maximum entropy and nonparametric estimation
    He, Lin
    Pan, Quan
    Di, Wei
    Li, Yuanqing
    [J]. PATTERN RECOGNITION LETTERS, 2008, 29 (09) : 1392 - 1403
  • [6] Honkavaar A.E, 2016, GEOSCIENCE REMOTE SE, V9, P5440
  • [7] RX Anomaly Detector With Rectified Background
    Imani, Maryam
    [J]. IEEE GEOSCIENCE AND REMOTE SENSING LETTERS, 2017, 14 (08) : 1313 - 1317
  • [8] A priori knowledge accumulation and its application to linear BRDF model inversion
    Li, XW
    Gao, F
    Wang, JD
    Strahler, A
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2001, 106 (D11) : 11925 - 11935
  • [9] A BIDIRECTIONAL REFLECTANCE MODEL OF THE EARTHS SURFACE FOR THE CORRECTION OF REMOTE-SENSING DATA
    ROUJEAN, JL
    LEROY, M
    DESCHAMPS, PY
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1992, 97 (D18) : 20455 - 20468
  • [10] Yan ZHANG, 2020, SPECTROSC SPECT ANAL, V40, P1902