Kinect + Isadora Tutorials Now Available

Marci

Ah, yeah. Standard / by design. GitHub is a version manager / online source viewer. Not designed for pulling individual files. Download via provided Download as Zip button top right of the repo frontpage, via view as raw / open binary link on individual files, or use any git client (https://desktop.github.com) to properly clone the repo... which will then handle incremental updating etc within the client, along with ability to roll back to previous versions, switch to alternative branches (eg: master, beta, stable), allow end-users to submit proposed changes back to the repo, issue tracking etc. Any right-click > save as action will just download the JS/htm src for the file viewer at a guess (open it in notepad to verify)

Armando

I'm sending here an updated version of my very old Isadora Kinect Skeleton Part user actor. (for History I put it in the ni-mate forum a long time ago while I still used their public beta before the 1.0. They liked it so much that they offered me a licence of the version one when it came out).

It is essentially what Mark has done for the new tutorial files but you can see in the actor's output the actual name of the part which I find useful and there is an additional input I called osc offset. I added it because kinect might not be your ONLY Bosc input and if you have fed Izzy with another device ( like an iPad with ouch osc BEFORE you send the kinect data in... you're screwed. Kinect point actor won't work unless you change your osc input inside the actor on inside the Stream Setup window.

With my actor and you just give to osc offset input the last Bosc port number you already have.

The actor will automatically shift all three osc listener channels inside so you have the right value for the right body part

58dc7d-kinect-skeleton-part.iua

camilozk

ey!

great discussion here. Have the files in the tutorial been updated?

Marci

The updated files are at https://github.com/PatchworkBoy/isadora-kinect-tutorial-files - follow the link, click the “Download Zip” button top right corner.

mark_m

Am working my way through this on Windows 10 with a Kinect that I previously had working with the original Tutorial files.

I'm trying to run the latest, updated files, downloaded from GitHub. When I run the Processing Sketch Isadora_Kinect_Tracking_Win.pde I get an error unexpected token: = and the line
if (userList.length !== 0) {

Can anyone proffer any help?

Thanks

Mark

Marci

Try changing

if (userList.length !== 0) {

to

if (userList.length != 0) {

mark_m

Thanks, Marci, yes I did try that and it gave another error further down:

Cannot find anything named kCameraInitMode
with this line highlighted:

        kCameraInitMode = 1;  

Thanks  

Mark

gapworks

@Marci thank you for your added ghost imageon kinect! one more question. is there a way to smooth the ghost image. as it is ,lets call it quite nervous. apart from this it works great.

But i had to delete the first couple of lines (all the ones with until "import...." because they created an error. an info that might be also useful to others here in this forum.

best

ps: and if i press 1 (case1) on my laptop it crashes my computer completely!! but i don´t need it so i just avoid it.

ce3869-screen-shot-2016-03-01-at-13.41.28.png

Marci

Opening line should begin /* If it doesn't then it'll cause errors. /* denotes start of a comment block, */ denotes end of a comment block. Looks like a case of clumsy fingers your end I'm afraid, as the files in the repo all have it correctly in place. Pressing 1 will try to init RGB mode. If sketch not launched in RGB mode then this is expected behaviour... like I said, can't switch between IR & RGB once launched. Smoothing - add a blur actor in Isadora after syphon receiver, before however you're converting it to a mask (assuming that's what you're doing)

gapworks

@Marci thank you for the quick response. Blur in Isadora was my solution to solve the "Nervousness". I was just curious if there was an Option within Processing.

best

Marci

@mark_m: add... int kCameraInitMode = 6; ...at line 40. Looks like I missed defining a global variable when I did the Windows file. Soz! I presume that means you're the first to actually use the Windows files as no-one else has picked up on it! Will fix it in the repo when I get home later.

Marci

@gapworks: lots of options in processing, canvas.filter(BLUR, 6); after line44, or something similar. See https://processing.org/reference/filter_.html or https://processing.org/examples/blur.html Ultimately, doing it in Isadora is simpler for you to maintain tho.

mark_m

Hi Marci,
Maybe I am the only person using this on Windows!

So I just downloaded your updated file that you did about 1800 01 March.
This still has the == issue. (see above). I fix that, but now I get an error further down when I try and run the processing files

I don't know if this is user error or what - my programming skills sadly lacking - but when you have a mo' I'd be grateful if you could have a look

Cheers

Mark M - lone Windows user!

When I run the processing file the error says:
cannot find anything named "inUserid"
line 187 says

    sendOSCSkeletonPosition("/skeleton/"+inUserId+"/head", inUserID, SimpleOpenNI.SKEL_HEAD);

Marci

Oops - grab the latest zip from the repo... have corrected both issues. Any mention of inUserId should be inUserID

(Or you could just do a find and replace in Processing / any text editor)

Safety Catch TV

Thanks for all the work gone in here... For Kinect tutorials which all worked for me, and here also to Marci. Great stuff.

****

I also had to correct the following only mac (retina) - and lower case Id to ID but then it seems to work as it is below in sample pic.

**

if (userList.length != 0) {

**

Safety Catch TV

5 & s key solves Ghost riddle. Brilliant!

Now on Ghost and without skeleton the IR image keeps cutting out and then re-appearing. Any ideas on why this is? Struggling to reboot it.

Is Alpha Mask the best way to turn this into a mask along with an Izzy Blur to project into? Will check the follow mask tutorial too. Sorry for sketchy posts, am mid production with this unfortunately not getting the time it deserves to implement. Ghost working in Processing is great, Now to turn that into a mask and i am a happy bunny for now.

Many thanks for any and all help

G

Marci

On ghost without skeleton there should be no IR image, just the ghost...? Do you mean the ghost keeps vanishing and re-aooearing? This will be down to OpenNI not being able to detect a user... ghost / skeleton needs as much of the entire person from feet to head in the shot as possible as OpenNI works out that a person is stood there by recognising an entire stick figure. It can’t do a tight shot where the user is only there from the waist upwards for instance... or if 50% of the person’s stick figure moves out of shot to the side.

Easier way to diagnose: video your screen on your mobile phone or summat whilst it’s happening and bash it on youtube and post me the link so I can see what’s going on...

Could also be USB bandwidth which would cause OpenNI to drop and have to timeout & reinitialise the sensor... which sometimes it can’t do without a complete shutdown of processing / reopening the sketch. I’d only expect this to be an issue if you were using USB external disks or cameras hooked up by USB that’d start saturating your total available USB bus bandwidth.

And yes, alpha mask and izzy to blur...

At some point I’ll add a blur option into the processing sketch, but can’t give any indication as to when that may be - at the moment the bill-paying work’s having to take priority!

Safety Catch TV

Ah sorry, my bad on naming issue - yes I can get ghost without skeleton, thanks to shortcut keys.

I think you are right as to why its not been getting the full me in shot. I still have to work with distancing but this week am working from home, so just need to step back more.

Thanks for the offer on the youtube clip review, at the moment I am struggling to get it working again where it was last night. I saved the processing file of your Ghost code, which was working with the keys etc too, but is now just beach balling and not picking me up. Hmmm will have to re-assess...

I will get back on this when I have figured out what that could be.

Could you possibly point me to that mask tutorial you mentioned? Is it the 'how do you get a mask content to follow the mask' one?

Do prioritise what you need to keep the roof over your head warm. But all this help is much appreciated, I am no coder, so have to pick up on what language I do understand, it is like being an english tourist abroad, only I am scottish!

Thanks

G

Marci

Was just looking for it and can't find now. Will try n throw an example Izzy file up later this evening.

NB: if it cuts out and fails to start, and you end up stuck with a beachball, generally it means unplug / replugin your kinect... a resource hasn’t been correctly freed. Or, you’ve forgot to plug in the kinect PSU.

Marci

If all you're wanting is a ghost mask there are other ways that don't involve OpenNI / user / skeleton at all, so can accept waist up etc... and reduces USB bandwidth & CPU load. Will see what I've got in my toolbox and start a new thread for it once I've found it.