An Interative Grahical User Interface for Maritime Security Services
In order to analyse optical satellite images for maritime security issues in Near-Real-Time (NRT) an interactive graphical user interface (GUI) based on NASA World Wind was developed and is presented in this article. Targets or activities can be detected, measured and classified with this tool simpl...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2013-10-01
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| Series: | The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
| Online Access: | http://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XL-7-W2/201/2013/isprsarchives-XL-7-W2-201-2013.pdf |
| Summary: | In order to analyse optical satellite images for maritime security issues in Near-Real-Time (NRT) an interactive graphical user
interface (GUI) based on NASA World Wind was developed and is presented in this article. Targets or activities can be detected,
measured and classified with this tool simply and quickly.<br><br>
The service uses optical satellite images, currently taken from 6 sensors: Worldview-1 and Worldview-2, Ikonos, Quickbird,
GeoEye-1 and EROS-B. The GUI can also handle SAR-images, air-borne images or UAV images. Software configurations are
provided in a job-order file and thus all preparation tasks, such as image installation are performed fully automatically. The imagery
can be overlaid with vessels derived by an automatic detection processor. These potential vessel layers can be zoomed in by a single
click and sorted with an adapted method. Further object properties, such as <i>vessel type</i> or <i>confidence level of identification</i>, can be
added by the operator manually. The heading angle can be refined by dragging the vessel's head or switching it to 180° with a single
click. Further vessels or other relevant objects can be added. The objects length, width, heading and position are calculated
automatically from three clicks on top, bottom and an arbitrary point at one of the object’s longer side. In case of an <i>Activity
Detection</i>, the detected objects can be grouped in area of interests (AOI) and classified, according to the ordered activities. All
relevant information is finally written to an exchange file, after quality control and necessary correction procedures are performed. If
required, image thumbnails can be cut around objects or around whole areas of interest and saved as separated, geo-referenced
images. |
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| ISSN: | 1682-1750 2194-9034 |