We can retrieve the sensor data at any given time step using the returned sensor_data object's data property. To retrieve the RGB camera frames, input the following code:
rgb_image = sensor_data['CameraRGB'].data
rgb_image is a NumPy n-d array, which you can access and manipulate as you would usually access and manipulate a NumPy n-d array.
For example, to access the pixel value of the RGB camera image at the (x, y) image plane coordinates, you can do so using the following line:
pixel_value_at_x_y = rgb_image[X, Y]
To retrieve the depth camera frames, input the following code:
depth_image = sensor_data['CameraDepth'].data