Kite Aerial Photography
As well as the Virtual Reality Shots allowing you to look in all directions, aerial shots lend themselves to making 3D images. This technology is used extensively to give you fly-through views of places that are still to be built or to build up a world in a computer game, but the same technology can be used with KAP, illustrated here with a picture of Greenacres Cottage, Tiree, taken in July 2003.
This video fly-past was created from 3 KAP images and some software I was introduced to by Simon Harbord, Canoma by Metacreations. Unfortunately the company and software no longer exist, but if you can find a copy it still produces great results!
Click the image to see it in a larger window.
Lets see how this video clip was made...
This technique tends to attract "fly past" shots (as above) so
having original material from the air ensures that roofs and other areas of
interest are well recorded on the original images so they are of high quality
when the finished item is viewed.
The tool is fairly intuitive and the structures can be built up quite quickly. However it is not possible to see round corners, so the rear (including the rear roof), and far wall of the house are still a mystery.
In this case a third KAP image looking straight down from above fills in details of the rear of the roof, and details of the chimneys.
The image on the left has this partially done, i.e. the front of the main house, the ground, and the rear roof are completed, this illustrates how the various "faces" are "painted on".
Various "tricks" exist for colouring and texturing faces where the program has no data. In this case I had no image of the rear of the building so I replaced it with a "gray" wall, and by ensuring it is not very visible in the video the illusion is maintained.
Finally the image can either be viewed in the tool where you have control over the viewing position, or it can be exported in formats like VRML for viewing in a 3D viewer later. For this presentation a number of key-frames were chosen and the program allows you to "fly" through the image from frame to frame. This was recorded as a video and can be seen at the top of the page.