{ "camera_calibration": { "reference_marker": [ 0, 0, 100, 100 ], "reference_marker_width": 100.0, "reference_marker_height": 100.0, "angle_horizontal": 0.0, "angle_vertical": 0.0 }, "mirror_x": false, "mirror_y": false, "rotate": 0, "source_type": "epics", "name": "Alvra_spatial_encoding", "source": "SARES11-SPEC125-M1" }