发明名称 |
Method and device for 3D image processing |
摘要 |
A method for coordinate transformation is presented to perform world coordinate transformation for placing a 3D model in world coordinates and to perform view transformation for spatially relating the 3D model with a viewpoint. The method includes the steps of performing a contraction process on the 3D model at a time of the world coordinate transformation, so that a size of the 3D model is made smaller than an actual size thereof, and performing a viewpoint position transformation on the viewpoint at a time of the view transformation, so that shift of the viewpoint is made smaller than an actual shift in accordance with a degree of contraction of the contraction process.
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申请公布号 |
US5732204(A) |
申请公布日期 |
1998.03.24 |
申请号 |
US19970835807 |
申请日期 |
1997.04.16 |
申请人 |
RICOH COMPANY, LTD. |
发明人 |
FUKUSHIMA, MASANOBU;FUJII, TATSUYA;SHIRAISHI, NAOTO;IZAWA, YASUHIRO;NAKAJIMA, TATSUYA |
分类号 |
G06T15/20;(IPC1-7):G06F3/14 |
主分类号 |
G06T15/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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