Advanced search
Start date
Betweenand
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

An Incongruence-Based Anomaly Detection Strategy for Analyzing Water Pollution in Images from Remote Sensing

Full text
Author(s):
Dias, Mauricio Araujo [1] ; da Silva, Erivaldo Antonio [2] ; de Azevedo, Samara Calcado [3] ; Casaca, Wallace [4] ; Statella, Thiago [5] ; Negri, Rogerio Galante [6]
Total Authors: 6
Affiliation:
[1] Sao Paulo State Univ, UNESP, Sch Sci & Technol, Dept Math & Comp Sci, Campus Presidente Prudente, BR-19060900 Presidente Prudente, SP - Brazil
[2] Sao Paulo State Univ, UNESP, Sch Sci & Technol, Dept Cartog, Campus Presidente Prudente, BR-19060900 Presidente Prudente, SP - Brazil
[3] Univ Fed Itajuba, Nat Resources Dept, Av BPS 1303, BR-37500903 Itajuba, MG - Brazil
[4] Sao Paulo State Univ, UNESP, Dept Energy Engn, Campus Rosana, BR-19274000 Rosana, SP - Brazil
[5] Fed Inst Educ Sci & Technol Mato Grosso IFMT, 95 Zulmira Canavarro, BR-78002520 Cuiaba, MT - Brazil
[6] Sao Paulo State Univ, UNESP, Sci & Technol Inst, Dept Environm Engn, Campus Sao Jose dos Campos, BR-12247004 Sao Jose Dos Campos, SP - Brazil
Total Affiliations: 6
Document type: Journal article
Source: REMOTE SENSING; v. 12, n. 1 JAN 1 2020.
Web of Science Citations: 1
Abstract

The potential applications of computational tools, such as anomaly detection and incongruence, for analyzing data attract much attention from the scientific research community. However, there remains a need for more studies to determine how anomaly detection and incongruence applied to analyze data of static images from remote sensing will assist in detecting water pollution. In this study, an incongruence-based anomaly detection strategy for analyzing water pollution in images from remote sensing is presented. Our strategy semi-automatically detects occurrences of one type of anomaly based on the divergence between two image classifications (contextual and non-contextual). The results indicate that our strategy accurately analyzes the majority of images. Incongruence as a strategy for detecting anomalies in real-application (non-synthetic) data found in images from remote sensing is relevant for recognizing crude oil close to open water bodies or water pollution caused by the presence of brown mud in large rivers. It can also assist surveillance systems by detecting environmental disasters or performing mappings. (AU)

FAPESP's process: 16/24185-8 - Anomaly detection, analysis and localization: a case study on digital static images from remote sensing applied to Cartography
Grantee:Maurício Araújo Dias
Support type: Scholarships abroad - Research