The XVision2 Project

Introduction

XVision2 is a complete rewrite of the original XVision system developed at Yale University from 1993-1998. If you are not familiar with XVision, you might want to read the history and aims of that project. The basic philosophy of XVision has been maintained in XVision2, but our goal is to provide a much broader and flexible range of functionality. The system is largely being developed by graduate students at The Johns Hopkins University under the supervision of Professor Greg Hager.

If you are familiar with XVision, you'll see that many things have changed.  The major changes include:

• The input/output classes (Video and Window) have been changed significantly and some of their functionality relocated to other parts of the system. In particular, Video and it’s sister class BufferedVideo no longer contain warping functionality, but simply serve as a generic interface to video sources. We've also been moving to firewire-based acquisition. Here is some information on firewire for Linux
• The image class has been greatly expanded and rewritten from the ground up. It includes support for a variety of color formats and more general and numerically correct image processing code. It also supports reference counts so that subimages and image assignment can be handled using simple pointer arithmetic.
• Warping has been broken out into separate classes.
• Image Pipelines have been integrated as a first class object.
• Image trackers are now being defined (still ongoing work) in terms of image pipelines. As a result, Trackers now carry explicit type information.
• Matlab interface to the Videre Stereo Head and to the Digital (IEEE1394-Firewire) cameras can be found in XVision2/src/Devices/matlab directory.

Download

We are still in the process of developing XVision2 and are happy to entertain suggestions, have people test code, etc.  A copy of the current version of the code is available for download here. You may try (at your own risk) our new RPMs

Fedora Core 2 (may work on other releases too) XVision2-1.0.3-1.i386.rpm , XVision2-1.0.3-1.src.rpm.
RedHat 8 (may work on other releases too) XVision2-1.0.3-1.rh8.i386.rpm , XVision2-1.0.3-1.rh8.src.rpm.

If you sign up on the mailing list below, you will be notified of updates and new releases.
 

Documentation

Documentation for XVision2 is available here.
 

Bug Reports