Patent ID: 6195102
Filing Date: 2001-02-27
Classification: G06T,H04N

Abstract:
A video image processing system for processing digital video data representing a multiplicity of picture points comprising a planar video image so that when the planar video image is displayed on a display screen and viewed from a position in front of the display screen the planar video image appears to be oriented in three dimensional space behind the display screen, the system comprising:a display screen for displaying a sequence of video frames forming a video image in corresponding display frame periods;a user operable means for designating plural points defining an area of picture points in the video image and for designating corresponding plural pinning points defining a two dimensional display area on the display screen; anda processor responsive to operation of the user operable means during consecutive frame periods for effecting interactive adjustment of at least a selected one of said pinning points on the display screen such that said at least one pinning point as displayed appears to move in three dimensional space behind the display screen, for generating three dimensional transformation data representing said apparent three dimensional movement of the at least one selected pinning point and for effecting therewith a corresponding processing of the area defining points of the video image and consequential processing of the picture points of said area of the video image defined thereby so that said area of the video image is transformed three dimensionally to move to the display area defined by said pinning points,wherein the three dimensional transformation data is generated assuming a predetermined viewing position on a surface of a hemisphere sitting on the display screen and having as a diameter a line joining a pair of vanishing points of a projection of the at least one selected pinning point from the three dimensional space onto the display screen.