Stylus detecting device and stylus detecting method
US9513720B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2013 |
| Grant date | Dec 6, 2016 |
| Priority date | — |
| Expiry date | Oct 2, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10012
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A stylus detecting device detects a pointed position which is a position pointed to by a stylus, and includes a first camera; a second camera; and a control unit including an axis detecting unit that detects a three-dimensional position and attitude of an axis of the stylus by using two images captured respectively by the first and second cameras, and a pointed position detecting unit that calculates as the pointed position a point of intersection between a straight line indicated by the axis of the stylus whose three-dimensional position and attitude have been detected by the axis detecting unit and a target plane having a predetermined positional relationship with respect to the first and second cameras.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.