| 摘要 |
<P>PROBLEM TO BE SOLVED: To switch images displayed on a display device for appreciation according to determination of whether an HMD is used or not. <P>SOLUTION: When an image outputted to the HMD 107 is outputted to the display device 110 as well, a viewpoint position attitude detection part 112 obtains the position attitude of the HMD 107, a use state decision part 113 judges whether or not the HMD 107 is used from the found position attitude, and a display control part 114 switches the image outputted to the display device 110 according to the judgment result. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
