The smartphone software could then use this to work out which part of its camera's image should be superimposed and what angle of the interior image should be shown.

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Bilateral symmetry means that something can be superimposed on its mirror image.

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It essentially creates a summary of all moving events and plays that back as a synopsis superimposed over the static background image.

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And just in case we didn't understand how important the CBS and Warner Bros. bosses were, the big screen flashed an image of their faces superimposed over Mount Rushmore.

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An image of the Cameroon striker about to head a football, his face and neck superimposed on a map of Africa, will form the centrepiece of the publicity campaign for the tournament.

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