Recognition accuracy with respect to different degrees of occlusion.

<p>The vertical axis represents the recognition accuracy obtained as described in the text and the horizontal axis represents the width of the vertical bar, which corresponds to the degree of occlusion. Originally, the recognition accuracies of the MSTNN and two baseline models were similar (width of the vertical bar = 0). However, the recognition accuracy of the MSTNN was vastly superior to those of the two baseline models when the width of the vertical bar increased from 5 to 40 pixels stepping by 5 pixels.