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Cross-platform ctypes/Cython wrapper to the librealsense library.

Project Description

Cross-platform ctypes/Cython wrapper to the librealsense library.


  • install [librealsense] ( and run the examples.
  • install the dependencies: pyrealsense uses pycparser for extracting necessary enums and structures definitions from the librealsense API, Cython for wrapping the inlined functions in the librealsense API, and Numpy for generic data shuffling.
  • Windows specifics: set environment variable PYRS_INCLUDES to the rs.h directory location and environment variable PYRS_LIBS to the librealsense binary location. You might also need to have stdint.h available in your path.


from PyPI - (OBS: not always the latest):

pip install pyrealsense

from source:

python install

Online Usage

## setup logging
import logging
logging.basicConfig(level = logging.INFO)

## import the package
import pyrealsense as pyrs

## start the service - also available as context manager

## create a device from device id and streams of interest
cam = pyrs.Device(device_id = 0, streams = [pyrs.ColorStream(fps = 60)])

## retrieve 60 frames of data
for _ in range(60):

## stop camera and service

The server for Realsense devices is started with pyrs.start() which will printout the number of devices available. It can also be started as a context with with pyrs.Service():.

Different devices can be created from the Device factory. They are created as their own class defined by device id, name, serial, firmware as well as enabled streams and camera presets. The default behaviour create a device with id = 0 and setup the color, depth, pointcloud, color_aligned_depth, depth_aligned_color and infrared streams.

The available streams are either native or synthetic, and each one will create a property that exposes the current content of the frame buffer in the form of device.<stream_name>, where <stream_name> is color, depth, points, cad, dac or infrared. To get access to new data, Device.wait_for_frames has to be called once per frame.

Offline Usage

## with connected device cam
from pyrealsense import offline
## previous device cam now offline
from pyrealsense import offline
offline.load_depth_intrinsics('610205001689')  # camera serial number
d = np.linspace(0, 1000, 480*640, dtype=np.uint16)
pc = offline.deproject_depth(d)

The module offline can store the rs_intrinsics and depth_scale of a device to disk by default in the user’s home directory in the file .pyrealsense. This can later be loaded and used to deproject depth data into pointcloud, which is useful to store raw video file and save some disk memory.


There are 3 examples using different visualisation technologies: - still color with matplotlib - color and depth stream with opencv - pointcloud stream with VTK


To this point, this wrapper is tested with:

  • librealsense v1.12.1
  • Ubuntu 16.04 LTS, Mac OS X 10.12.2 w/ SR300 camera
  • Mac OS X 10.12.3 w/ R200 camera

The offline module only supports a single camera.

Build Status

Ubuntu Trusty, python 2 and 3:

Possible Pull Requests

  • improvments to the documentation
  • more functionality from rs.h
  • boiler plate code (Qt example?)
  • support for several cameras in offline module
  • continuous integration for Windows and MacOs

Make sure to push to the dev branch.

Release History

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