The popular ARToolkit library has been ported to work with Max/MSP+Jitter. This simple 4 marker object is released under the GPL License and available from Aranar Productions. For more information about commercial licenses, contact http://www.ARToolworks.com.
“ARToolKit is a software library for building Augmented Reality (AR) applications. These are applications that involve the overlay of virtual imagery on the real world. For example, in the image to the right a three-dimensional virtual character appears standing on a real card. It can be seen by the user in the head set display they are wearing. When the user moves the card, the virtual character moves with it and appears attached to the real object.”http://www.hitl.washington.edu/artoolkit/
Modify the file objectdata2 in a text editor at /Applications/Max5/artk.support/multi/objectdata2 and adding your pattern files accordingly.