Ideas for teaching

Robert Berry
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Posts: 5

Ideas for teaching Sept 19, 2013 9:26:27 GMT

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Post by Robert Berry on Sept 19, 2013 9:26:27 GMT

Hi all

I'll be running a couple of GIS modules as part of our undergraduate and postgraduate degree teaching here at the University of Gloucestershire. I'd be really interested to hear about any experiences/ideas people have with integrating KAP into geography/GIS teaching. I think it would be fun to do, but I'm still not entirely sure what we'd do with the oblique low-altitude aerial photos that we capture. How does one begin creating a map using KAP images? I'm used to dealing with orthorectified photos and satellite images!

Any thoughts?

John
Administrator

Posts: 43

Ideas for teaching Sept 19, 2013 13:51:33 GMT

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Post by John on Sept 19, 2013 13:51:33 GMT

Hi Rob, this is totally outside my area (I leave that to Jim ;o) but the folks at publiclab.org/ have a wide interest in balloon and kite mapping.
See also here.

The small 860E GPS data logger units are handy.
Heidi, on this forum, has used one on the collar of her cats to track their activities:

https://fbcdn-sphotos-f-a.akamaihd.net/hphotos-ak-ash3/p480x480/1017269_10152007303260410_1303351421_n.jpg

The tracking lines join data points recorded at set time intervals.

The GPS units integrated into some cameras will not work in continuous shooting mode (and often interval mode) as they record only the position corresponding to the first image.
External triggering of the camera (GentLed etc) will overcome this problem.

Last Edit: Sept 19, 2013 14:41:39 GMT by John

Jim
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Posts: 43

Ideas for teaching Sept 19, 2013 14:05:10 GMT

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Post by Jim on Sept 19, 2013 14:05:10 GMT

Hi Rob,

generally you need some form of control points on the ground that require co-ords of some form to tie into the images. These are usually crosses on laminated white paper that are attached to the ground. Another method can be employ the a gps unit or built into a camera itself, the images will have exif information with gps co-ords that can be roughly tied into a flight path that can be matched onto features on the ground. this is a little rough and ready and not accurate enough for gis methods. A further method is ortho-rectification using software such as Airphoto which could be exported into other packages for refining. If the image was truly vertical, then the image could easily be pulled into GIS (QGIS) and rectified using simple control points onto known features. I usually use CAD and overlay this onto a map tile in GIS and then pop the image using controls over the CAD image.

Jim

Last Edit: Sept 19, 2013 20:06:29 GMT by Jim

Robert Berry New Member Posts: 5	Ideas for teaching Sept 20, 2013 9:24:12 GMT Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Robert Berry on Sept 20, 2013 9:24:12 GMT OK thanks both.

Post by Robert Berry on Sept 19, 2013 9:26:27 GMT

Post by John on Sept 19, 2013 13:51:33 GMT

Post by Jim on Sept 19, 2013 14:05:10 GMT

Post by Robert Berry on Sept 20, 2013 9:24:12 GMT