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We will follow the official documentation for librealsense.
The Librealsense SDK provides Python bindings to configure a connected Realsense camera and start streaming images. Following the official example, this stream can be processed with the Python libraries Numpy and OpenCV. We learned from the official example the necessary steps: a) Create Python objects that represent the configuration of the device, b) create an Python object representing the image processing pipeline, c) aligning depth and color data, d) transforming the image to an array representation, and e) use OpenCV utility functions to save the image or open a graphical window to show the live video stream.