I used on-site horizontal digital photography for the first time this year
as a trial.
I used a Canon G2 Powershot attached to a horizontal levelling arm for plan
photography. The resulting photographs were stitched together.
My son produced some software for me based on Adobe Streamline which then
converted the photograph into a black and white traced drawing. He included
a filtering process and also an xy axis for scaling.
I was very impressed with the results although the filtering still has to be
improved. Having compared a drawn version of a plan with a converted
photograph there was little if any difference. He is currently including a
provision for shading.
----- Original Message -----
From: "Paul Barford" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, January 06, 2004 5:44 AM
Subject: Vertical digital photographic recording
> Apologies for cross posting
> Is anyone on this list working on the use of on-site vertical digital
> photography coupled with graphics programs in on-site computers to create
> excavation documentation and in particular to replace hand-drawn layer and
> feature plans? Are there any published accounts of these recording systems
> and their efficiency and reliability ? What about drawbacks?
> I would be grateful for any information.
> Paul Barford