Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!batcomputer!cornell!uw-beaver!ssc-vax!bcsaic!dee
From: dee@bcsaic.UUCP (Thomas Dee)
Newsgroups: comp.graphics
Subject: How do I derive a perspective transformation matrix??
Message-ID: <45886@bcsaic.UUCP>
Date: 24 Apr 91 16:37:55 GMT
Organization: Boeing Computer Services AI Center, Seattle
Lines: 17


I have a camera mounted at some [x,y,z] looking at a figure on the
z=0 plane.  Is there a way to derive the perspective transformation
matrix without knowing any of the angles that the camera is mounted at?

I can put a square (or anything else) of known dimensions on the z=0
plane to use for this calibration.

Any hints would be welcome.  Everything that I have ever studied shows
how to create a perspective view but I have not been able to figure
out how to "reverse engineer" the problem.

Thanks a lot,

Tom....

dee@atc.boeing.com