depthstream

stream kinect's depth image to websocket clients

With Depsthream you can easily get depth image data from your Kinect using a WebSocket Connection. A wepage running on the same computer can that way easily obtain the depth pixel array and feed into an animation.

Usage

Depthstream.

Usage:
  depthstream [options]

Options:
  -h --help             Show this screen.
  -i --info             Show connected Kinects.
  -p --port=<n>         Port for server. [default: 9090].
  -d --device=<n>       Device to open. [default: 0].
  -b --bigendian        Use big endian encoding.
  -r --reduce=<n>       Reduce resolution by nothing or a power of 2. [default: 0]
  -I --interpolate=<n>  Interpolate zeroed pixels with a filter block of n*n. [default: 0]
  -s --skip=<n>         Skip every nth frame of the incomming 30fps stream. [default: 0]
  -c --color            Append color data.

Make a connection to the server and request a frame or stream mode by sending a message:

var ws = new WebSocket('ws://localhost:9090');
ws.binaryType = 'arraybuffer';

ws.onopen = function (event) {
  ws.send('1'); // request the current cashed frame
  ws.send('*'); // add connection to the stream list
};

ws.onmessage = function (message) {
  // the array contains 640*480 values from 0 to 10000
  // representing the depth in millimeters
  var array = new Uint16Array(message.data);
};

See the example.

Install (OSX only)

First install dependencies using brew:

$ brew install libusb
$ brew install libfreenect

Then download the latest binary from releases.

Build

$ gopm get
$ gopm build