Substitute the camera inptut and use a video

Hello users!

I would like to substitute the camera and, instead of it, use a
recorded-video (.avi or .mpg) as the input to ARToolKit.
In the video, it appears a marker (i.e. Hiro).

My questions are the following ones:

- Is possible to use the recorded-video as the video input to ARToolKit
(i.e. substitute the camera)?
- If the preview answer is affirmative, can a marker, that appears in the
recorded - video, be detected in order to show anything (for example, an
image, a 3ds model, ...)?

Thanks in advance
Best regards.

Aitor

From:	"Aitor Linaza/LABEIN" <alinaza@l ........>	Received:	May 15, 2003
To	artoolkit@h ..................
Subject:	Substitute the camera inptut and use a video
Hello users! I would like to substitute the camera and, instead of it, use a recorded-video (.avi or .mpg) as the input to ARToolKit. In the video, it appears a marker (i.e. Hiro). My questions are the following ones: - Is possible to use the recorded-video as the video input to ARToolKit (i.e. substitute the camera)? - If the preview answer is affirmative, can a marker, that appears in the recorded - video, be detected in order to show anything (for example, an image, a 3ds model, ...)? Thanks in advance Best regards. Aitor

From:	Daniel Wagner <daniel@i ...............>	Received:	May 15, 2003
To	artoolkit@h ..................
Subject:	Re: Substitute the camera inptut and use a video
>- Is possible to use the recorded-video as the video input to ARToolKit >(i.e. substitute the camera)? >- If the preview answer is affirmative, can a marker, that appears in the >recorded - video, be detected in order to show anything (for example, an >image, a 3ds model, ...)? ofcourse you can use a video as input. at a basic level artoolkit expects just images. so any source of image can be used... what you should take care of is that the video compression does not introduce artifacts. the typical video codec is optimized to human perception, not to artoolkit... bye, DANIEL

From:	Thomas Pintaric <thomas@i ...............>	Received:	May 15, 2003
To	artoolkit@h ..................
Subject:	Re: Substitute the camera inptut and use a video
Dear Aitor, You may want to take a look at http://www.ims.tuwien.ac.at/~thomas/artoolkit.php, where you'll find an ARToolkit-wrapper that accepts video-input from AVI-files via DirectShow. Currently, the code still has certain issues, but you should be able to get the general idea. Regards, --Thomas At 01:38 PM 5/15/2003 +0200, you wrote: >Hello users! > >I would like to substitute the camera and, instead of it, use a >recorded-video (.avi or .mpg) as the input to ARToolKit. >In the video, it appears a marker (i.e. Hiro). > >My questions are the following ones: > >- Is possible to use the recorded-video as the video input to ARToolKit >(i.e. substitute the camera)? >- If the preview answer is affirmative, can a marker, that appears in the >recorded - video, be detected in order to show anything (for example, an >image, a 3ds model, ...)? > >Thanks in advance >Best regards. > >Aitor _________________________________________ Thomas Pintaric Interactive Media Systems Group Vienna University of Technology <thomas@i ...............> http://www.ims.tuwien.ac.at/~thomas _________________________________________