14th September 2012, 02:08 PM
(This post was last modified: 16th September 2012, 09:39 AM by John Wells.)
Jack Wrote:Not sure what I'm seeing in this image (other than you in the middle). Is there a non-thermal image for comparison? Whats the dark bits (other than cold), whats the lighter rectangular bit on the left, some walls?
The image is only intended to illustrate the resolution of our thermal images and I thought that a human body (mine is now a close approximation!) was the best way to illustrated this.
Archaeologically, it is a poor shot of a smal part our first site:
![[Image: irogilfacejan10.jpg]](http://www.armadale.org.uk/irogilfacejan10.jpg)
http://www.armadale.org.uk/archaeology3.htm
part of a wider investigation of the Barony of Ogilface:
http://www.armadale.org.uk/archaeologyogilfaceindex.htm
If you want to see the resolution of a 140 x 140 pixel thermal camera (if I remember correctly, link to paper on http://www.armadale.org.uk/phototech03.htm) have a look at this image of Villa Rustica taken by Uli Kiesow in 2006:
![[Image: thermaluli.jpg]](http://www.armadale.org.uk/thermaluli.jpg)
? archaeoflug.de 2006Visible left and thermal right.
This is the image that made me take up kite aerial thermography, although Uli used a microlight.
Have a look at the recent kite aerial thermogram by Larry Purcell at the foot of:
http://www.armadale.org.uk/phototech06.htm
and Larry has only just started this work!
We have had our first thermal imager for a year but have done very little work. Conditions have been atrocious this year for crop marks (including thermal ones) and safe kite work.
Our Group is working in partnership with Dave Cowley of the RCAHMS to look at a Roman site in Falkirk both within and outside the visible spectrum but this project will now only take off with next season's crop.