UNSUPERVISED AUTOMATIC TARGET DETECTION FOR MULTITEMPORAL SAR IMAGES BASED ON ADAPTIVE K-MEANS ALGORITHM

被引：0
|
作者：
Campos, Alexandre B. [1 ,2 ]
Molin, Ricardo D., Jr. [1 ,3 ]
Vu, Viet T. [2 ]
Pettersson, Mats, I [2 ]
Machado, Renato [1 ]
机构：
[1] Aeronaut Inst Technol ITA, BR-12228900 Sao Jose Dos Campos, SP, Brazil
[2] Blekinge Inst Technol BTH, SE-37179 Karlskrona, Sweden
[3] German Aerosp Ctr DLR, D-82234 Wessling, Germany
来源：
IGARSS 2020 - 2020 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM | 2020年
关键词：
Automatic target detection; CARABAS-II; k-means; SAR images; unsupervised change detection;
D O I：
10.1109/IGARSS39084.2020.9324678
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
In this paper, we present an unsupervised automatic target detection algorithm for multitemporal SAR images. The proposed two-fold method is expected to reduce processing time for large scene sizes with sparse targets while still improving detection performance. Firstly, pixel blocks are extracted from an initial change map to reduce the algorithm's search space and favor target detection. Secondly, an adaptive k-means algorithm selects the number of clusters that better separates targets from false alarms, which are discarded. Preliminary results show the advantages of the proposed method in processing time and detection performance over a recently proposed supervised method for the CARABAS-II dataset.
引用
收藏
页码：328 / 331
页数：4
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