发明名称 Information-inputting device inputting contact point of object on recording surfaces as information
摘要 An information-inputting device is provided, which includes a plurality of photographing units photographing an area on a plane. An object located on the plane is then extracted from an image that includes the plane and the object, and it is determined whether the object is a specific object. If the object is the specific object, a position of a contact point between the specific object and the plane is calculated.
申请公布号 US7379622(B2) 申请公布日期 2008.05.27
申请号 US20040976990 申请日期 2004.11.01
申请人 RICOH COMPANY, LTD. 发明人 FUJIOKA SUSUMU
分类号 G06F3/042;G06K9/00;G06F3/041;G06K9/20 主分类号 G06F3/042
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