Geo-tagging in LineVision

LineVision Interface with controlled burn open.

Introduction:

When taking Geo-spatial video there are many different applications. Above is the program line vision which has many different ways to extrapolate and use data for many purposes. In this exercise we used aerial video of a controlled burn to show how you can Geo-tag locations in the video to get detailed information about each object in the video.

Disclaimer:
While doing this exercise the participants of the lab realized that there was some sort of error in the video, as placing a point didn't properly line up with where it was in the video. There seemed to be a slant angle that was affecting where the points went and it caused the data to be inaccurate.

Method:

Using the LineVision interface is quite simple. To place a Geo-tag on the map on the right-hand side of the screen, you hover over the video on the upper left-hand side of the screen. From there it's as simple as clicking on the interface and a point will appear on the right.

Note: 

• The blue dots on the image above are the geo-tagged points.
• The faint red dots show the flight path of the vehicle used.

To see the values of coordinates and other information you simply hover over the dot you would like view the location of. The values of each point are shown below.

Discussion:

Obviously the data received from this particular exercise is unusable due to the error in the footage/Geo-tagging. However, it demonstrates the possibilities using this program well. Depending on the task you are trying to accomplish you can use the information you gather to suite your needs, for instance; If you are actively filming a wildfire you can tag the points in the footage from a distance, and then relay the coordinates to emergency services which they can then use to more effectively fight the fire.

Conclusion:

Geo-tagging has many different applications for many different purposes. Using software like LineVision and others lets you process data in effective ways. As technologies in Unmanned Aerial Systems progress, this type of data processing will continue to be important, as it allows a user to easily extrapolate data.