expected_raw_detection_boxes = [[[0., 0., 0.5, 0.5], [0., 0.5, 0.5, 1.],
                                     [0.5, 0., 1., 0.5], [1., 1., 1.5, 1.5]],
                                    [[0., 0., 0.5, 0.5], [0., 0.5, 0.5, 1.],
                                     [0.5, 0., 1., 0.5], [1., 1., 1.5, 1.5]]]