Hi! Many thanks for volunteering your time as a digital humanitarian
Tropical Cyclone Pam is regarded as one of the worst natural disasters in the history of Vanuatu. The Category 5 super storm resulted in major structural damage to the islands. A team from the World Bank has deployed a number of UAVs across the islands of Vanuatu to gather very high resolution aerial imagery of disaster stricken regions. The World Bank now needs our help to quickly identify which houses have been damaged in order to accelerate recovery efforts!
The MicroMappers Aerial Clicker is very easy to use. The Clicker simply shows you one aerial image of Vanuatu at a time and all you need to do is outline (trace) any damaged houses you see. This tracing is done by drawing polygons around damaged houses (there may be more than one damaged house in a single picture; all damaged houses need to be traced). You must first indicate (tag) the relevant level of damage for the house you want to outline before starting the tracing. Here are the different damage levels you can chose from (different houses may be tagged with different damage levels in the same image):
The rest of this tutorial will have detailed instructions and examples of all three categories:
Note: Each picture will be evaluated by different volunteers. For this reason, if you are unsure of which damage category to assign to a certain region in the picture, then simply make your best guess and move on to the next one. As long as you are consistent in your assessments, the World Bank will be able to use your results.
Here are some examples of what houses in Vanuatu look like when they are Fully Destroyed, Partially Destroyed or have Little to No Damage.
Little to No Damage: Clearly little to no damage; roofs are intact; visible walls intact.
Partially Destroyed: The roof on the left side is covered by a black tarp and held down with wood; suggests damage to the whole roof.
Fully Destroyed: The red roof on the left of the image looks like it has collapsed to the ground; supporting walls appear to have been destroyed.
If the picture you are looking at has any houses that can be considered Fully Destroyed, then please click on the Red cyclone icon on the left side of the Clicker. Next simply use your mouse to draw a polygon around each individual severely destroyed house (by clicking the cursor of your mouse on the different corners of the house to create the trace). Be sure to close each polygon by clicking again on your first point.
Once you are finished tracing all the severely damaged houses in your image, look again to see if there are any Partially Damaged houses (click on Orange cyclone then trace) or any houses that have Little to No Damage (click on Bluestrong> cyclone icon then trace). Once you’ve traced all the houses that are fully destroyed, partially destroyed and those have little to no damage, simply click on “Save and Go To Next” at the bottom of the Clicker. See the image below:
Note: You can have multiple fully destroyed, partially damaged, and buildings with little or no damage in one picture.
That's all there is to it! As soon as you submit your work you will be shown another picture. If you want to keep track of your progress, be sure to login to MicroMappers.
You can view this tutorial at any time by clicking the “Tutorial” button on the screen. Additionally, if you run into any problems or have any questions, please join the chatroom by clicking the “Chatroom” button displayed in the Clicker. There will be moderators present who will be able to assist you with the Clicker.
Once this deployment is over, we’ll work with computer vision experts to determine whether our traces of damaged houses can be used to create algorithms that can automatically detect damages in the future. But for now, the resulting traces and analysis will be shared with the World Bank and Government of Vanuatu to they can accelerate their recovery efforts on the ground.