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DE19746864A1 - Virtual keystroke detection arrangement - Google Patents

Virtual keystroke detection arrangement

Info

Publication number
DE19746864A1
DE19746864A1 DE1997146864 DE19746864A DE19746864A1 DE 19746864 A1 DE19746864 A1 DE 19746864A1 DE 1997146864 DE1997146864 DE 1997146864 DE 19746864 A DE19746864 A DE 19746864A DE 19746864 A1 DE19746864 A1 DE 19746864A1
Authority
DE
Germany
Prior art keywords
virtual
detection arrangement
keystroke detection
virtual keystroke
fingers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE1997146864
Other languages
German (de)
Inventor
Jun Hartmut Neven
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE1997146864 priority Critical patent/DE19746864A1/en
Publication of DE19746864A1 publication Critical patent/DE19746864A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/017—Gesture based interaction, e.g. based on a set of recognized hand gestures
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
    • G06F3/0425—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means using a single imaging device like a video camera for tracking the absolute position of a single or a plurality of objects with respect to an imaged reference surface, e.g. video camera imaging a display or a projection screen, a table or a wall surface, on which a computer generated image is displayed or projected
    • G06F3/0426—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means using a single imaging device like a video camera for tracking the absolute position of a single or a plurality of objects with respect to an imaged reference surface, e.g. video camera imaging a display or a projection screen, a table or a wall surface, on which a computer generated image is displayed or projected tracking fingers with respect to a virtual keyboard projected or printed on the surface

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

The arrangement includes distance sensors, such as stereo cameras, lasers scanners, or light interference technique for measuring a distance of one or several fingers to a surface, and for detecting virtual keystrokes. The arrangement uses preferably a soft, pillow-like base.

Description

Die Erfindung bezieht sich auf die Erkennung und Positionsbestimmung von Händen und Fingern, die eine virtuelle Tastatur benutzen. Sie dient dazu Tastatur und Maus am Computer und anderen Steuergeräten zu ersetzen.The invention relates to the detection and position determination of hands and fingers using a virtual keyboard. It serves the keyboard and mouse on the computer and other control units.

Die Hände werden über einer Unterlage (1) bewegt. Auf diese Unterlage können mit einem Projektor (2) Zeichen projiziert werden (wie bei der Siemens Virtual Touch Screen) oder Papier gelegt werden (wie beim Sony Super Smart Paper). Die Finger werden von Distanzsensoren (3) beobachtet. Die Erkennung eines virtuellen Tastendrucks erfolgt durch Abstandsmessungen. Kommt ein Finger der Unterlage näher als ein vorgegebener Wert, z. B. 3 mm, wird dies als Tastendruck interpretiert. Eine besondere Ausführung dieses Systems benutzt eine weiche, kissenartige Un­ terlage. Die Distanzsensoren (3) messen dann wie tief der Eindruck in die weiche Unterlage ist.The hands are moved over a mat ( 1 ). A projector ( 2 ) can be used to project characters onto this surface (as with the Siemens Virtual Touch Screen) or paper (as with the Sony Super Smart Paper). The fingers are observed by distance sensors ( 3 ). A virtual keystroke is recognized by distance measurements. If a finger comes closer to the pad than a specified value, e.g. B. 3 mm, this is interpreted as a key press. A special version of this system uses a soft, cushion-like surface. The distance sensors ( 3 ) then measure how deep the impression is in the soft surface.

Verschiedene Distanzsensoren können verwendet werden: Hochauflösende Stereo­ kameras, Laser Scanner oder Lichtschnittechniken. Die Kamera (3), die in allen drei Verfahren Anwendung findet, wird auch dazu verwendet die Koordinaten der Finger in der Ebene der Unterlage festzustellen.Different distance sensors can be used: high-resolution stereo cameras, laser scanners or light-cutting techniques. The camera ( 3 ), which is used in all three methods, is also used to determine the coordinates of the fingers in the plane of the base.

Anwendungsbeispiele sind die folgendenApplication examples are the following

Das System kann dazu dienen, bereits vorhandene Ansätze zu virtuellen Tastaturen wie z. B. die Siemens Virtual Touch Screen oder das Sony Super Smart Paper um eine wichtige Eigenschaft zu erweitern. Bisher wird in diesen Systemen ein Tastendruck dadurch ausgelöst, daß der Finger eine gewisse Zeitspanne über einer entsprechen­ den Stelle in der Ebene verweilt. Dies macht die Registrierung eines Tastendrucks langsam. Eine Abstandmessung zwischen Finger und Ebene kann diese Zeitspanne stark verkürzen.The system can be used to use existing approaches to virtual keyboards such as B. the Siemens Virtual Touch Screen or the Sony Super Smart Paper by one important property to expand. So far, in these systems, a keystroke triggered by the fact that the finger corresponds to a certain period of time the place lingers on the plane. This makes the registration of a keystroke slowly. A distance measurement between the finger and the plane can cover this period greatly shorten.

Claims (2)

1. Vorrichtung zur Detektion von virtuellen Tastendrücken, bei welcher Distanzsen­ soren wie Stereokameras, Laser Scanner oder Lichtschnittechniken den Abstand eines oder mehrerer Finger zu einer Oberfläche messen.1. Device for the detection of virtual keystrokes at which distances sensors such as stereo cameras, laser scanners or light-cutting techniques measure one or more fingers to a surface. 2. Vorrichtung zur Detektion von virtuellen Tastendrücken, bei welcher eine weiche kissenartige Unterlage verwendet wird.2. Device for the detection of virtual keystrokes, in which a soft cushion-like pad is used.
DE1997146864 1997-10-22 1997-10-22 Virtual keystroke detection arrangement Withdrawn DE19746864A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1997146864 DE19746864A1 (en) 1997-10-22 1997-10-22 Virtual keystroke detection arrangement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1997146864 DE19746864A1 (en) 1997-10-22 1997-10-22 Virtual keystroke detection arrangement

Publications (1)

Publication Number Publication Date
DE19746864A1 true DE19746864A1 (en) 1999-04-29

Family

ID=7846416

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1997146864 Withdrawn DE19746864A1 (en) 1997-10-22 1997-10-22 Virtual keystroke detection arrangement

Country Status (1)

Country Link
DE (1) DE19746864A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6531999B1 (en) 2000-07-13 2003-03-11 Koninklijke Philips Electronics N.V. Pointing direction calibration in video conferencing and other camera-based system applications
WO2003071410A3 (en) * 2002-02-15 2004-03-18 Canesta Inc Gesture recognition system using depth perceptive sensors
CN104583921A (en) * 2012-08-27 2015-04-29 西铁城控股株式会社 Information input device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6531999B1 (en) 2000-07-13 2003-03-11 Koninklijke Philips Electronics N.V. Pointing direction calibration in video conferencing and other camera-based system applications
WO2003071410A3 (en) * 2002-02-15 2004-03-18 Canesta Inc Gesture recognition system using depth perceptive sensors
CN104583921A (en) * 2012-08-27 2015-04-29 西铁城控股株式会社 Information input device

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Legal Events

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8139 Disposal/non-payment of the annual fee