If both people sat at the same spot at the end of the table with a pain of glass between them and the table, they could both trace the shape of the table on to the glass. Furthermore the shapes would be identical unless one of the observers had a brain abnormality that affect their vision/vision processing.
Oh, you meant pane, now the rest makes sense! :)
english aint my strong suit, i mix up homonyms, mess up grammar, and often times do not make my thoughts clear