Results 251 to 260 of about 42,219 (287)

Dual-frequency oil spill detection algorithm

2017 Computing and Electromagnetics International Workshop (CEM), 2017
In this paper, we present a drone dual-frequency technique in order to detect thick oil slicks in ocean. From physical point of view, the problem is considered to be a multi-layers wave surface scattering model where we study the reflection of the electromagnetic (EM) waves from the sea layer covered by oil layer.
Bilal Hammoud, Fatima Mazeh, Kassem Jomaa, Hussam Ayad, Fabien Ndagijimana, Ghaleb Faour, Jalal Jomaah   +6 more
openaire   +1 more source

Oil spill detection using microwave images

2013 Fifth International Conference on Advanced Computing (ICoAC), 2013
Oil pollution is the major environmental concern in the world. It is important to detect oil spill and take necessary step to prevent pollution in marine ecosystem. Among several satellite, SAR can provide high resolution images with wide area coverage, day and night, and all weather capabilities. This paper presents anisotropic diffusion filtering and
P. Saranya, K. Vani
openaire   +1 more source

Oil spill detection in SAR imagery

Proceedings of IGARSS '93 - IEEE International Geoscience and Remote Sensing Symposium, 2002
The possibilities for automatic segmentation of oil slicks and oil slick look-alikes in ERS-1 SAR imagery is investigated. "Spots" in the images are detected using adaptive thresholding and statistical classification of oil slick candidates is performed using geometric properties and gradient-based features. Promising results are shown, but the methods
K.W. Bjerde, A.H.S. Solberg, R. Solberg
openaire   +1 more source

OIL SPILL DETECTION WITH REMOTE SENSORS

Proceedings of the 19th Conference for Junior Researchers „Science – Future of Lithuania“, 2016
Accurate detection and forecasting of oil spills and their trajectories is beneficial for monitoring and conservation of the marine environment. The most common techniques of oil spill tracking are remote sensing from an aircraft and satellites.
Kristina Pilžis, Vaidotas Vaišis
openaire   +1 more source

Oil spill detection with fully polarimetric UAVSAR data

Marine Pollution Bulletin, 2011
In this study, two ocean oil spill detection approaches based on four scattering matrices measured by fully polarimetric synthetic aperture radar (SAR) are presented and compared. The first algorithm is based on the co-polar correlation coefficient, ρ, and the scattering matrix decomposition parameters, Cloud entropy (H), mean scattering angle (α) and ...
Peng, Liu, Xiaofeng, Li, John J, Qu, Wenguang, Wang, Chaofang, Zhao, William, Pichel   +5 more
openaire   +2 more sources

Laser radar for remote detection of oil spills

Applied Optics, 1978
A laser radar system that is capable of remotely detecting oil spills, in the daytime and at night, in sea water has been developed. The system employs the second harmonic and fourth harmonic of a repetitively Q-switched Nd:YAG laser as the light sources and a gated optical multichannel analyzer as a high speed detection device.
T, Sato, Y, Suzuki, H, Kashiwagi, M, Nanjo, Y, Kakui   +4 more
openaire   +2 more sources

Oil spill detection by satellite remote sensing

Remote Sensing of Environment, 2005
This paper presents the state of the art for oil spill detection in the world oceans. We discuss different satellite sensors and oil spill detectability under varying conditions. In particular, we concentrate on the use of manual and automatic approaches to discriminate between oil slicks and look-alikes based on pattern recognition. We conclude with a
Camilla Brekke, Anne H.S. Solberg
openaire   +1 more source

Oil spill detection using marine SAR images

International Journal of Remote Sensing, 2000
A probabilistic approach to distinguish oil spills from other similar oceanic features in marine Synthetic Aperture Radar (SAR) images has been developed and tested. The method uses statistical information obtained from previous mesurements of physical and geometrical characteristics for both oil spill and natural features.
Fiscella B, Giancaspro A, Nirchio F, Pavese P, TRIVERO, Paolo   +4 more
openaire   +2 more sources

Oil spills detection on different underlying surfaces

SPIE Proceedings, 2012
Oil spills detection algorithm for different underlying surfaces was developed. It was shown, that in order to detect oil spills with high probability of correct detection and low probability of false alarm it wasn’t enough to use correlation analysis only.
Yu. V. Fedotov, M. L. Belov, O. A. Matrosova, V. A. Gorodnichev   +3 more
openaire   +1 more source

Oil spill detection from polarimetric SAR image

IEEE 10th INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING PROCEEDINGS, 2010
A new combined feature is proposed based on polarimetric features extraction. Moreover, a new oil spills detection method is developed based on the combined feature and max entropy segmentation. The application to NASA/JPL SIR-C data shows that the new combined feature and detection method are effective to oil spills detection.
Wang Wenguang, Lu Fei, Wu Peng, Wang Jun
openaire   +1 more source