node-openni

OpenNI bindings in Node.js.

Supports multiple users.

Install

Install libusb and OpenNI following the platform-specific instructions at https://github.com/OpenNI/OpenNI.

(If you're having trouble with this installation, some users have reported that the simple-openni package installs these dependencies successfully: https://code.google.com/p/simple-openni/wiki/Installation )

Then you will have to fork this repo:

$ cd node-openni
$ node-gyp configure build

Test

Plug in your kinect.

Run:

$ node test/base

Stay in the surrender position in front of the camera, a couple of meters away. After you're synced you should see

Use

Create Context

var OpenNI = require('openni');

var context = OpenNI();

Register for user events:

[
  'newuser',
  'userexit',
  'lostuser',
  'posedetected',
  'calibrationstart',
  'calibrationsucceed',
  'calibrationfail'
].forEach(function(eventType) {
  context.on(eventType, function(userId) {
    console.log('User %d emitted event: %s', userId, eventType);
  });
});

Register for joint events

[
  "head",
  "neck",
  "torso",
  "waist",
  "left_collar",
  "left_shoulder",
  "left_elbow",
  "left_wrist",
  "left_hand",
  "left_fingertip",
  "right_collar",
  "right_shoulder",
  "right_elbow",
  "right_wrist",
  "right_hand",
  "right_fingertip",
  "left_hip",
  "left_knee",
  "left_ankle",
  "left_foot",
  "right_hip",
  "right_knee",
  "right_ankle",
  "right_foot"
].forEach(function(jointName) {

  context.on(jointName, function(user, x, y, z) {
    console.log(jointName + ' of user %d moved to (%d, %d, %d)', user, x, y, z);
  });

});

Close Context

// Close the context to exit

process.on('SIGINT', function() {
  context.close();
  process.exit();
});

Specify Joints

You can specify exactly which joints you want to be tracked:

context.setJoints(['head', 'left_hand', 'right_hand']);

Licence

MIT

IngoValente/node-openni