Patent ID: 7330197
Filing Date: 2008-02-12
Classification: G06F,G06T

Abstract:
1. An information processing method comprising: an acquisition step of acquiring position data representing a position and orientation of a user based on a detection signal from a sensor; a storage step of storing the position data in a memory unit; a recording step of recording a plurality of boundary-measured points, wherein each of the plurality of boundary-measured points indicates a last measured point when a state of the sensor shifts from measurable to non-measurable due to movement of a measured point; a generation step of generating a virtual image based on current position data acquired in said acquisition step; a synthesizing step of synthesizing the virtual image with a real image corresponding to the virtual image; a determination step of determining a measurable area of the position and orientation of the user based on the plurality of recorded boundary-measured points of the sensor, wherein the measurable area is a closed area obtained by connecting the plurality of boundary-measured points; a setting step of setting a warning area inside the measurable area determined in said determination step, the warning area being set along a boundary of the measurable area; and a control step of controlling notification related to the warning area set in said setting step.