To see the limits, we compare nCCA (ours) against nCCA (bbox) <cite>[32]</cite> that crops over ground truth bounding boxes from MS COCO segmentations and next averages over theirs representations (Table 3 in <cite>[32]</cite> shows that ground truth bounding boxes outperforms automatically detected bounding boxes, and hence they can be seen as an upper bound for a detection method trained to detect objects on MS COCO).