SG126697A1 - Methods and devices for inputting data to a computer system - Google Patents
Methods and devices for inputting data to a computer systemInfo
- Publication number
- SG126697A1 SG126697A1 SG200202526A SG200202526A SG126697A1 SG 126697 A1 SG126697 A1 SG 126697A1 SG 200202526 A SG200202526 A SG 200202526A SG 200202526 A SG200202526 A SG 200202526A SG 126697 A1 SG126697 A1 SG 126697A1
- Authority
- SG
- Singapore
- Prior art keywords
- display
- point
- pointing device
- intersection
- computer
- Prior art date
Links
Landscapes
- Position Input By Displaying (AREA)
Abstract
A user employs a pointing device 3 having an axis to point at a display 2 which displays an image controlled by a computer. The pointing device 3 may be a simple stick, or even a user's finger or arm. Images of the pointing device 3 are taken by two cameras 5, 7. Each of these images is a line in the two dimensional image plane of the corresponding camera. The line in one of the image planes is transformed to give a line in the other of the image planes, and the point of intersection of the two lines is found, corresponding to the position in that common co-ordinate frame of the point of intersection of the axis of the pointing device 3 with the display 2. The co-ordinates of the point of intersection of the lines are transformed by a predetermined co-ordinate transformation into the plane of the display, and into another co-ordinate frame corresponding to a monitor of the computer. Software in the computer then varies the image displayed on the display and/or uses the data to trigger other operations on the PC.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SG200202526A SG126697A1 (en) | 2002-04-26 | 2002-04-26 | Methods and devices for inputting data to a computer system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SG200202526A SG126697A1 (en) | 2002-04-26 | 2002-04-26 | Methods and devices for inputting data to a computer system |
Publications (1)
Publication Number | Publication Date |
---|---|
SG126697A1 true SG126697A1 (en) | 2006-11-29 |
Family
ID=38288496
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG200202526A SG126697A1 (en) | 2002-04-26 | 2002-04-26 | Methods and devices for inputting data to a computer system |
Country Status (1)
Country | Link |
---|---|
SG (1) | SG126697A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1984000864A1 (en) * | 1982-08-20 | 1984-03-01 | Cjm Associates | Three-dimensional video system |
US6147678A (en) * | 1998-12-09 | 2000-11-14 | Lucent Technologies Inc. | Video hand image-three-dimensional computer interface with multiple degrees of freedom |
US6204852B1 (en) * | 1998-12-09 | 2001-03-20 | Lucent Technologies Inc. | Video hand image three-dimensional computer interface |
WO2001081859A1 (en) * | 2000-04-25 | 2001-11-01 | Inspeck Inc. | Combined stereovision, color 3d digitizing and motion capture system |
-
2002
- 2002-04-26 SG SG200202526A patent/SG126697A1/en unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1984000864A1 (en) * | 1982-08-20 | 1984-03-01 | Cjm Associates | Three-dimensional video system |
US6147678A (en) * | 1998-12-09 | 2000-11-14 | Lucent Technologies Inc. | Video hand image-three-dimensional computer interface with multiple degrees of freedom |
US6204852B1 (en) * | 1998-12-09 | 2001-03-20 | Lucent Technologies Inc. | Video hand image three-dimensional computer interface |
WO2001081859A1 (en) * | 2000-04-25 | 2001-11-01 | Inspeck Inc. | Combined stereovision, color 3d digitizing and motion capture system |
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