getting started with my video project

Oct 31, 2008 at 11:23am

getting started with my video project

Hello everyone,
I downloaded the trial version of Max/MSP/Jitter a few days ago and I decided that it’s the tool that I will use for my video project. I will probably buy the student version after my trial expires because I have a very good feeling and I am really excited about the capabilities of this tool, I just don’t know where to start.
My project is all about controlling a video according to how close the viewer is to the projection. When I say controling the video, I don’y mean complicated stuff, it’s one video (2 minutes) which I want to loop a part, play, play backwords and also control the velocity.
In order to control it I was thinking first about using an ultrasonic sensor with an arduino board, but I need a big range (up to 6 meters) wich means big angle wich will cause interference in a corridor (the video is going to be projected at the end of a corridor). So I started thinking about using laser with light sensors in a row, connected to the arduino, but this version has problems when more than one people enter the room. So I think now that the best solution is video tracking.
I’ve searched a little and I found some patches like cyclops (which I can’t afford) and the cv.jit patch. I really don’t know if it can work and the problem is that I have no idea about max and limited time for my project (it has to be ready in the middle of December).
I also want to work with HD video and I don’t know if it is possible to do that.
I really want to learn max but I would like some suggestions on where to start in order to be more effective. Do you think I have enough time to do the job? I think I am a fast learner…

Any suggestions welcome!

#40586
Oct 31, 2008 at 11:31am

Hi Anastasia,

the only way to learn is to go through the tutorials, just about everyone
on this list has done that. I teach it at a university and always get my
students to do all the tutorials before we start talking.

cv.jit is fantastic and easy for motion tracking but I’ve not used it for
proximity sensing, perhaps you should look at other types of sensor and
rethink how you’ll measure the proximity.

You should be able to learn everything you need very quickly through the
tutorials, over a weekend perhaps but it’s then down to you to apply what
you’ve learnt.

Tom

2008/10/31 Anastasia

>
> Hello everyone,
> I downloaded the trial version of Max/MSP/Jitter a few days ago and I
> decided that it’s the tool that I will use for my video project. I will
> probably buy the student version after my trial expires because I have a
> very good feeling and I am really excited about the capabilities of this
> tool, I just don’t know where to start.
> My project is all about controlling a video according to how close the
> viewer is to the projection. When I say controling the video, I don’y mean
> complicated stuff, it’s one video (2 minutes) which I want to loop a part,
> play, play backwords and also control the velocity.
> In order to control it I was thinking first about using an ultrasonic
> sensor with an arduino board, but I need a big range (up to 6 meters) wich
> means big angle wich will cause interference in a corridor (the video is
> going to be projected at the end of a corridor). So I started thinking about
> using laser with light sensors in a row, connected to the arduino, but this
> version has problems when more than one people enter the room. So I think
> now that the best solution is video tracking.
> I’ve searched a little and I found some patches like cyclops (which I can’t
> afford) and the cv.jit patch. I really don’t know if it can work and the
> problem is that I have no idea about max and limited time for my project (it
> has to be ready in the middle of December).
> I also want to work with HD video and I don’t know if it is possible to do
> that.
> I really want to learn max but I would like some suggestions on where to
> start in order to be more effective. Do you think I have enough time to do
> the job? I think I am a fast learner…
>
> Any suggestions welcome!
>

#143715
Oct 31, 2008 at 11:36am

The cv.jit objects could work well if you position a camera on the
roof looking down to see how close people are getting.
On 31 Oct 2008, at 11:23, Anastasia wrote:

>
> Hello everyone,
> I downloaded the trial version of Max/MSP/Jitter a few days ago and
> I decided that it’s the tool that I will use for my video project.
> I will probably buy the student version after my trial expires
> because I have a very good feeling and I am really excited about
> the capabilities of this tool, I just don’t know where to start.
> My project is all about controlling a video according to how close
> the viewer is to the projection. When I say controling the video, I
> don’y mean complicated stuff, it’s one video (2 minutes) which I
> want to loop a part, play, play backwords and also control the
> velocity.
> In order to control it I was thinking first about using an
> ultrasonic sensor with an arduino board, but I need a big range (up
> to 6 meters) wich means big angle wich will cause interference in a
> corridor (the video is going to be projected at the end of a
> corridor). So I started thinking about using laser with light
> sensors in a row, connected to the arduino, but this version has
> problems when more than one people enter the room. So I think now
> that the best solution is video tracking.
> I’ve searched a little and I found some patches like cyclops (which
> I can’t afford) and the cv.jit patch. I really don’t know if it can
> work and the problem is that I have no idea about max and limited
> time for my project (it has to be ready in the middle of December).
> I also want to work with HD video and I don’t know if it is
> possible to do that.
> I really want to learn max but I would like some suggestions on
> where to start in order to be more effective. Do you think I have
> enough time to do the job? I think I am a fast learner…
>
> Any suggestions welcome!

Jack Keenan
3sixty-tv coordinator
Peacock Visual Arts
21 Castle Street
Aberdeen
AB11 5BQ

01224 639539

http://www.threesixtytv.com
http://www.peacockvisualarts.com

Registered in Scotland No. SC 56235
Charity No. 14840

#143716
Oct 31, 2008 at 1:14pm

You don’t need cyclops for your project.
Instead of cv.jit, you could use a proximity sensor / distance sensor (I
think it could be easier to test/make it work for your deadline, but that’s
just my opinion).
Timeline seems pretty short for learning Max, Jitter, evaluating sensors and
interfaces (or cv.jit), but if you have time to dedicate to that, it may
work.
You can get started directly with the Jitter tutorials, and open the Max
ones when you feel you need.
Jean-Francois.

#143717
Oct 31, 2008 at 2:52pm

Thanks for your quick answers!

I will start with the tutorials then one by one and I think it is better to look at max first because I started with the first tutorials and it seems a little dificult. Anyway I have to start first to see how it goes.

About the sensors I’ve really considered all the parameters. It’s been two weeks now that i’ve been trying out different things and ended up with video tracking which I think will work better and I hope it’s easy to use.

Then what do you think about high definition video? Do you think it’s too much processing? Can I work with it? I have a really powerful mac and I think that it should take it. Has anyone worked with HD video?

#143718
Nov 5, 2008 at 4:06pm

I had this idea yesturday about using a wii controller and infrared leds to measure the distace. Maybe these are much better tools to work with, as the wii is wireless and you can get the data very easily from it and then I can concentrate on controling the video more that making the sensors “work” for what I want to do.

What do you think?

#143719

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