| 摘要 |
An image processing apparatus which allows for information search from items arranged in virtual space, includes: an intra-visual field polygon discriminating means for determining the polygons constituting the surfaces of 3D shapes displayed in the visual field; a polygon data storing means for storing the polygons which were determined to be within the visual field by the intra-visual field polygon discriminating means; a pre-observed polygon identifying means for judging whether currently observed polygons are the same as those stored in the polygon data storing means; and a display processing means for changing the display state of polygons which have been determined to have been priorly seen.
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