| US 7,557,808 B2 | ||
| Image processing device and information recording medium | ||
| Makoto Yamamoto, Tokyo (Japan); Kenji Tohma, Tokyo (Japan); Shinobu Hayashi, Tokyo (Japan); Tsuyoshi Matsuda, Tokyo (Japan); Yoshitaka Maeyama, Tokyo (Japan); and Tomoya Takasugi, Narashino (Japan) | ||
| Assigned to Kabushiki Kaisha Sega, Tokyo (Japan) | ||
| Filed on Oct. 31, 2007, as Appl. No. 11/980,608. | ||
| Application 10/681172 is a division of application No. 09/369302, filed on Aug. 06, 1999, granted, now 6,664,965. | ||
| Application 11/980608 is a continuation of application No. 11/239377, filed on Sep. 30, 2005, granted, now 7,471,297. | ||
| Application 11/239377 is a continuation of application No. 10/681172, filed on Oct. 09, 2003, granted, now 6,980,207. | ||
| Claims priority of application No. 10-236540 (JP), filed on Aug. 07, 1998; and application No. 10-349349 (JP), filed on Nov. 24, 1998. | ||
| Prior Publication US 2008/0068387 A1, Mar. 20, 2008 | ||
| Int. Cl. G06T 15/70 (2006.01) | ||
| U.S. Cl. 345—474 [345/419; 345/473; 345/475; 345/619; 382/203; 463/2; 463/32] | 11 Claims |

| 1. An image processing device for judging the collision between a first object moving within a virtual space and a second
object arranged within said virtual space, comprising:
storage means for storing, upon said virtual space being partitioned per unit grid pursuant to three-dimensional coordinates,
said second object existing within said unit grid in correspondence with each unit grid; and
collision judgment means for searching any one of the unit grids in which said first object exists and limiting the second
object being subjected to the judgment of the collision with the first object into a second object within the searched unit
grid.
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