reacTIVision / News: Recent posts

reacTIVision 1.4 release

reacTIVision is a computer vision application framework for the fast and robust tracking of markers attached on physical objects, and the creation of multi-touch surfaces. it was designed for the rapid development of table-based tangible user interfaces.

This is the final release of reacTIVision 1.4

* finger blob tracking, with on screen setup (F key)
* increased standard set of 108x2 fiducial symbols
* additional small set of 12x2 fiducial symbols
* improved fiducial rendering (smaller footprint & better proportions)
* improved and more robust fiducial tracking (with secondary blob tracking)
* improved calibration precision
* improved DC1394 camera support and configuration on Mac and Linux
* improved V4L2 camera support and configuration on Linux
* on-screen and XML configuration instead of command line options
* added MIDI channel selection for note ON events
* removed initial camera dialogs on Mac and Windows

Posted by Martin Kaltenbrunner 2009-05-19

reacTIVision 1.4 second release candidate

reacTIVision is a computer vision application framework for the fast and robust tracking of markers attached on physical objects, and the creation of multi-touch surfaces. it was designed for the rapid development of table-based tangible user interfaces.

This is the second release candidate for reacTIVision 1.4, which is feature complete, and which will become the final 1.4 release if no further mistakes are found.... read more

Posted by Martin Kaltenbrunner 2009-04-18

reacTIVision: 1.4 release candidate

reacTIVision is a computer vision application framework for the fast and robust tracking of markers attached on physical objects, and the creation of multi-touch surfaces. it was designed for the rapid development of table-based tangible user interfaces.

This is the release candidate for reacTIVision 1.4, which is feature complete, but might still contain a few issues to be be solved before the final 1.4 release. Also see the parallel update of the TUIO client collection.... read more

Posted by Martin Kaltenbrunner 2009-03-24

new reacTIVision and TUIO forums

Dear reacTIVision and TUIO community,
I'd like to point you to a new and hopefully more convenient forum page, where you should direct all you questions from now on, suggestions and all other enquiries related to reacTIVision and the TUIO framework.

http://apps.sourceforge.net/phpbb/reactivision/

Please consider the old SF forum as obsolete, but it will of course remain there for future reference until most topics are covered within the new forums. ... read more

Posted by Martin Kaltenbrunner 2009-03-14

TUIO2 Specification Draft

Dear multi-touch community,
Almost four years have past since the initial publication of the TUIO protocol, which we had initially developed to define common method to connect different interactive surfaces such as the reacTable and the tDesk. Since then the protocol and its implementations in the context of the reacTIVision project have grown to a quite versatile SDK framework for the easy development of tangible or multi-touch interactive surfaces.
Also, since David Wallin decided to adopt TUIO within touchlib, the protocol and framework has gained more interest and importance within the multi-touch community. And nowadays, many open-source multi-touch projects are using TUIO in many ways and there is also a growing number of third party client implementations in addition to our own software. There are even some interesting implementations available for devices such as the iPhone or the WiiMote, which I wouldn’t have considered in the first place.... read more

Posted by Martin Kaltenbrunner 2009-02-18

reacTIVision: second 1.4 prerelease

reacTIVision is a computer vision application framework for the fast and robust tracking of markers attached on physical objects, and the creation of multi-touch surfaces. it was designed for the rapid development of table-based tangible user interfaces.

dear reacTIVision users,
this is the second and hopefully more stable prerelease of reacTIVision 1.4. updated TUIO clients and simulator are also available for download as well as three new TUIO clients for PureData, Max/MSP and Quartz Composer.... read more

Posted by Martin Kaltenbrunner 2008-08-05

reacTIVision 1.4 prerelease

dear reacTIVision users,
finally the official prerelease of reacTIVision 1.4 and the updated TUIO clients and simulator are available for download.

* added finger blob tracking
* removed the obsolete finger fiducial
* improved and more robust fiducial tracking (fallback to blob tracking when fiducials fail)
* improved set of fiducials (smaller footprint & improved rendering)
* improved calibration precision
* improved firewire camera support and configuration on mac os X and linux
* on-screen configuration instead of command line options
* XML configuration file
* added MIDI channel selection for note ON events
* many more bug fixes and improvements... read more

Posted by Martin Kaltenbrunner 2008-06-17

Improved Flash client available

Thanks to the efforts of Michel Maas and Andreas Lykke-Oleson there is an updated TUIO client for Flash available, which not only fixes some bugs in the FlashOSC translator but more importantly implements the full TUIO protocol, including the cursor messages.

Posted by Martin Kaltenbrunner 2007-06-28

reacTIVision-1.3 released

Finally reacTIVision 1.3 has been released. The new features include:

* finger tracking using mini stickers for the finger tips
* alternative MIDI messaging (mapping via XML config)
* improved object tracking performance
* reduced camera latency
* improved calibration procedure for distortion correction
* additional TUIO clients for PureData, Max/MSP and C#

The most notable change is the multi-touch finger tracking with the help of small stickers that need to be attached to the finger tips. The updated TUIO clients for version 1.3 are able to receive the according cursor envents.... read more

Posted by Martin Kaltenbrunner 2006-11-22

updated windows build available

an updated build for the win32 platform is available, which corrects an DLL dependency problem.

Posted by Martin Kaltenbrunner 2006-10-25

reacTIVision-1.2d released

After a series of 1.2 releases with unexpected bugs, this should be the final 1.2 release before 1.3 comes out.

* fixed the NaN output in the w32 build
* fixed another calibration crash that emerged with the new w32 builds

Posted by Martin Kaltenbrunner 2006-08-19

reacTIVision-1.2c released

* fixed a crash when no camera was found
* fixed MacOS X 10.3 & 10.2 compatibility
* updated the SDL library to version 1.2.11
* updated Win32 build to Visual Studio 2005
* made verbose output machine readable

Posted by Martin Kaltenbrunner 2006-08-03

reacTIVision 1.2b released

* fixed another small object tracking bug
* fixed a linux firewire driver bug
* fixed the linux RPM package script

Posted by Martin Kaltenbrunner 2006-05-09

reacTIVision 1.2a released

bugfix release: the transmission of multiple fiducial IDs introduced in version 1.2 was not working correctly

Posted by Martin Kaltenbrunner 2006-03-10

Updated TUIO Backends

This update to the TUIO backends introduces an API update to the TUIOListener interface. We now include both the session_id and the fiducial_id in all the methods (such as addTuioObject or removeTuioObject)

Posted by Martin Kaltenbrunner 2006-03-09

reacTIVision 1.2 released

This release enables the multiple usage of the same fiducial ID in the same table setup. TUIO assigns a session ID to each object appearing in the scene and transmits this session ID along with the generic fiducial ID. You will need to use the updated TUIO backend examples from below in order to take full advantage of this feature.

reacTIVision 1.2 also improves the calibration procedure and enables the distortion feature for all three fiducial engines. It now allows the correction of lens distortion on round, square and rectangular tables.

Posted by Martin Kaltenbrunner 2006-02-25

reacTIVision 1.1 released

* made application more user friendly:
- on screen fiducial id
- on screen help message
- on screen error messages
- added application icon
* included all three fiducial engines in the binary
* updated d-touch sources
* improved fidtrack thresholder
* removed the need for a default all.trees file
* fixed freezing when camera was removed
* V4L_DEVICE selects USB camera in Linux
* universal binary support for MacOS X

Posted by Martin Kaltenbrunner 2006-01-23

Updated TUIO_Simulator and TUIO_CPP backend

The TUIO C++ backend now includes a graphical OpenGL Demo and the TuioListener now works as a Thread in the background.

The TUIO Simulator now has a reset feature and a few bugs were fixed.

Posted by Martin Kaltenbrunner 2006-01-10