University of New Brunswick (UNB) postdoctoral fellow Shabnam Jabari is developing a technology that promises to be a game changer for government, aid organizations, and first responders around the world.
During Dr. Jabari’s senior year of undergraduate study at the University of Tehran in 2003, a disastrous earthquake struck the southern Iranian city of Bam. The 6.6-magnitude quake destroyed homes and killed tens of thousands of people, including the family member of a friend.
Inspired to make a difference in the face of tragedy, she began exploring how satellite images could be used to detect changes in regions affected by earthquakes. The research she completed for her master’s thesis focused on identifying areas that required restoration in Bam, a world heritage site.
Previous technology required aerial photography and satellite images to be reviewed manually, scanning for changes between images, and automatic scans were limited to imagery capture from the same viewpoint, essentially lowering the level of accuracy.
Dr. Jabari’s technology automatically scans satellite images from different vantage points to detect changes to buildings, city landscapes, and rural areas, providing a much higher level of accuracy.
For example, if relief workers in Toronto were looking to assess damage throughout the city after a natural disaster, it could take 50 people more than a month to manually complete the task. With automated change detection software, it would take one computer a few days—and multiple computers only a few hours.
The capabilities of this software reach beyond disaster relief to use by government, law enforcement, insurers, and city planners, allowing them to detect changes in areas relevant to them and do so faster, cheaper, and with greater accuracy.
While software currently on the market can detect changes with an accuracy rate of 10 to 70%, the accuracy of this new technology is 80 to 90%.
Dr. Jabari came to UNB in 2011 to complete her PhD with internationally renowned remote sensing Professor Yun Zhang.
“Shabnam is a very intelligent and motivated student,” says Dr. Zhang, Canada Research Chair in Advanced Geomatics Image Processing. “She has very strong theoretical background and understands difficult questions quickly through a few short discussions and independently finds solutions.”
She’s thankful that her research could be fully funded by part of Dr. Zhang’s Natural Sciences and Engineering Research Council of Canada Discovery Grant.
“UNB is one of the best universities in the world to study geomatics engineering in,” says Dr. Jabari. “When I came to UNB, I got to know the authors of the reference textbooks we used to study for my bachelor’s degree. It was such a great honour to see them.”
Though the research phase is complete, there’s no slowing down in sight. The next step for Dr. Jabari is to develop the software for commercial use. She has a patent pending and has had two papers published this year, with one currently in press and another in progress that she hopes will be published in 2017.
It’s Dr. Jabari’s hope that one day this technology will be a readily available tool for global use in crisis management.
This article was adapted with permission from the University of New Brunswick.