Title:
HYPERSPECTRAL IMAGE CLASSIFICATION METHOD BASED ON LABEL-CONSTRAINED ELASTIC NETWORK GRAPH MODEL
Document Type and Number:
WIPO Patent Application WO/2021/003951
Kind Code:
A1
Abstract:
A hyperspectral image classification method based on a label-constrained elastic network graph model. The steps comprise: performing EMP feature extraction on hyperspectral images to construct space-spectrum joint features (S101); on the basis of the space-spectrum joint features, performing label constraint transfer to acquire a global constraint matrix (S102); on the basis of the global constraint matrix, constructing a dictionary for each pixel point (S103); on the basis of the dictionaries, solving the elastic network representation to construct a label-constrained elastic network graph model (S104); and, on the basis of the elastic network graph model, implementing semi-supervised classification to acquire a label matrix and thereby implement hyperspectral image classification (S105). The present method can reduce calculation complexity, increase graph construction accuracy, and enhance the algorithm classification performance.
Inventors:
SUN YUBAO (CN)
CHEN YI (CN)
LIU QINGSHAN (CN)
CHEN JIWEI (CN)
CHEN YI (CN)
LIU QINGSHAN (CN)
CHEN JIWEI (CN)
Application Number:
PCT/CN2019/120491
Publication Date:
January 14, 2021
Filing Date:
November 25, 2019
Export Citation:
Assignee:
UNIV NANJING INFORMATION SCIENCE & TECH (CN)
International Classes:
G06K9/62
Foreign References:
| CN110399909A | 2019-11-01 | |||
| CN105787516A | 2016-07-20 | |||
| US20140204092A1 | 2014-07-24 |
Other References:
SUN, YUBAO ET AL.: "Hypergraph Embedding for Spatial-Spectral Joint Feature Extraction in Hyperspectral Images", REMOTE SENSING,, vol. 9, no. 5, 22 May 2017 (2017-05-22), XP055772535, ISSN: 2072-4292
LIU, QINGSHAN ET AL.: "Elastic Net Hypergraph Learning for Image Clustering and Semi-Supervised Classification", IEEE TRANSACTIONS ON IMAGE PROCESSING,, vol. 26, no. 1,, 31 January 2017 (2017-01-31), XP080686975, ISSN: 1057-7149, DOI: 20200313145741Y
LIU, QINGSHAN ET AL.: "Elastic Net Hypergraph Learning for Image Clustering and Semi-Supervised Classification", IEEE TRANSACTIONS ON IMAGE PROCESSING,, vol. 26, no. 1,, 31 January 2017 (2017-01-31), XP080686975, ISSN: 1057-7149, DOI: 20200313145741Y
Attorney, Agent or Firm:
ZHIWEI-TIMES INTELLECTUAL PROPERTY AGENCY (CN)
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