Big Data Visualization on Maps for City Authorities

Sunnyvale, CA

An emcee of the hackathon
Challenge Start Date

August 6, 2016

Registration Deadline


Submission Deadline

August 7, 2016

Demo Day

August 7, 2016

Winners & Highlight Video


Team Maps Actually

Detect missing OSM objects by detecting changes on satellite photos

Aleksandra Kudriashova & Rustem Feyzkhanov

In many cities, the OSM layer is incomplete and/or outdated. Maps Actually has taken it upon itself to address this issue and is using open source data to detect new buildings that are not labeled with OSM. We analyze a series of fresh satellite images and detect areas which look like buildings in a city. We then overlay these suspected areas with an OSM building layer and find buildings that are not labeled with OSM. As a result, this information becomes useful for city authorities and local businesses. In addition, companies like Google Maps and 2GIS can use this layer to keep their databases up-to-date.


August 6, 2016

9:00 AM – Doors Open, Breakfast Served

10:00 AM – Opening Ceremony

10:30 AM – Hacking Begins

12:00 PM – Lunch

1:30 PM – Technology Breakout Sessions

6:00 PM – Dinner Served

8:00 PM – Pitch Workshop

11:30 AM – Midnight Snack

12:00 AM – Hack through the night!

August 7, 2016

8:00 AM – Breakfast

11:30 AM – Lunch

2:00 PM – Code Freeze/Hacking Ends!

3:00 PM – Live Demos Begin!

4:00 PM – Winners Announced

Upon completion, we will have a casual social to cap the event and allow people to socialize about their ideas.



Projects will be judged based on the following criteria:


Tools, Data, & IP Rights

Participants are allowed to use the open source tools provided by NGA’s GitHub site in addition to other commercially known open source tools. Participants are also encouraged to use their own proprietary solutions to develop creative and efficient products. If you are representing a company, your company’s proprietary software assets are also allowed to be used with the appropriate permission within your organization. Please reference the Terms and Conditions data to confirm that all IP rights remain with the participant and/or the organization they are representing.

All participants must agree to the terms and conditions.


If you have any inquiries about participating in this competition, please don’t hesitate to reach out to us at