A Traversorama is like a panorama, in that it is an image of a wide subject
created by stitching together several smaller images.
But it's unlike a panorama in that the smaller images are not shot from one
viewpoint (rotating the camera around that viewpoint), but rather by having
the camera traverse across the width of the (primarily linear) subject,
shooting the images from multiple viewpoints along a line parallel to the
Some characteristics of traditional panoramas are:
- the (i.e. typically left and right) ends of the subject are
smaller than the centre, because they are further from the camera
- the centre is seen 'straight-on' but ends are seen from an angle.
Thus in a panorama of Main Street, you can see down one of the
side streets, if the viewpoint is opposite a street,
but you can't see down the others.
- In a panorama of a really wide subject, such as the Rocky Mountains
in North America, the camera has to be a such great distance from the subject
to be able to see it all, that the subject's height is too small to see
A Traversorama provides an alternative set of characteristics,
though it also brings a weird and interesting set of its own:
- All parts of the subject have equal rights to being their correct height
- All parts of the subject are seen 'straight-on'.
In a travo of Main Street, you can see down all of the side-streets -
the 'side-street effect'
- We could, conceptually, fly an aircraft along the Rocky Mountains,
shooting images along the way, and create a Travo showing 'everything'
at its correct relative height.
- But some strange effects occur - these will be shown and discussed below.
is from Greek, and means 'all'.
is also from Greek - 'horama', meaning 'view'. Because a traversorama
is 'sort-of like' a panorama, I wanted a name that suggests the similarity.
However it should also indicate the difference, hence 'traversorama
But perhaps that name is too long for general use, so it may be shortened to
, or 'travo'
How is a Travo created?
We need to have many - hundreds or thousands - of rather narrow images.
If we were to use the same technology as is typically used for panoramas
- a digital SLR - the camera would soon be worn out,
and the processing required would probably wear out the creator.
What type of camera can happily shoot thousands of images?
Video cameras do that!
But the video images are not narrow. And anyway, how could we access the
individual images (video 'frames')
and stitch them together to form one wide image?
(computer software that I have written) does that!