DE102004025516A1 - Object, e.g. user`s, fingertip, position determining arrangement ,for use in room, has opto-electronic camera with visible mirror and evaluation unit determining position of object based on signal generated by camera - Google Patents
Object, e.g. user`s, fingertip, position determining arrangement ,for use in room, has opto-electronic camera with visible mirror and evaluation unit determining position of object based on signal generated by camera Download PDFInfo
- Publication number
- DE102004025516A1 DE102004025516A1 DE200410025516 DE102004025516A DE102004025516A1 DE 102004025516 A1 DE102004025516 A1 DE 102004025516A1 DE 200410025516 DE200410025516 DE 200410025516 DE 102004025516 A DE102004025516 A DE 102004025516A DE 102004025516 A1 DE102004025516 A1 DE 102004025516A1
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- DE
- Germany
- Prior art keywords
- camera
- mirror
- image
- arrangement according
- arrangement
- Prior art date
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- Withdrawn
Links
- 238000011156 evaluation Methods 0.000 title claims abstract description 8
- 230000005693 optoelectronics Effects 0.000 title claims abstract description 5
- 238000001228 spectrum Methods 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000001454 recorded image Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C11/00—Photogrammetry or videogrammetry, e.g. stereogrammetry; Photographic surveying
- G01C11/02—Picture taking arrangements specially adapted for photogrammetry or photographic surveying, e.g. controlling overlapping of pictures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/28—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with deflection of beams of light, e.g. for direct optical indication
Abstract
Description
Die Erfindung betrifft eine Anordnung zur Positionsermittlung eines Objektes im Raum.The The invention relates to an arrangement for determining the position of a Object in the room.
Zur Positionsermittelung von Objekten sind verschiedene Verfahren und Anordnungen bekannt. So wird häufig eine Stereokamera verwendet, deren Stereobildpaar nach einer Rechnung Aufschluß über die räumliche Position der aufgenommenen Objekte relativ zur Stereokamera gibt. Nachteilig ist dabei, daß zwei Kameras notwendig sind, falls die Auswertung in Echtzeit geschehen soll.to Position determination of objects are different methods and Arrangements known. This is how it often becomes used a stereo camera whose stereo image pair after an invoice Information about the spatial Position of the recorded objects relative to the stereo camera. The disadvantage here is that two Cameras are necessary if the evaluation is done in real time should.
Es ist daher Aufgabe der Erfindung, eine möglichst einfach zu gestaltende Anordnung zur Positionsermittlung von Objekten anzugeben, die mit lediglich einer Kamera auskommt und gleichzeitig echtzeitfähig ist.It is therefore an object of the invention, as simple as possible to be designed Arrangement for determining the position of objects to be specified with only one camera works and at the same time is real-time capable.
Diese Aufgabe wird erfindungsgemäß gelöst von einer Anordnung zur Positionsermittlung eines Objektes im Raum, mindestens umfassend:
- – eine opto-elektronische Kamera,
- – mindestens einen für besagte Kamera mindestens teilweise sichtbaren Spiegel, dessen spiegelnde Oberfläche besagter Kamera zugewandt ist, so daß zwischen Kamera und Spiegel befindliche Objekte gleichzeitig als Bild und als Spiegelbild von der Kamera aufgenommen werden, sowie
- – eine Auswerteelektronik für die von der Kamera erzeugten Signale zur Ermittlung der räumlichen Position des besagten Objekts.
- - an opto-electronic camera,
- - At least one for said camera at least partially visible mirror, the reflective surface of said camera is facing, so that objects located between the camera and mirror are recorded simultaneously as an image and a mirror image of the camera, and
- - An evaluation of the signals generated by the camera to determine the spatial position of said object.
Die Auswerteelektronik für die von der Kamera erzeugten Signale eine elektronische Schaltung ist so ausgestaltet, daß sie
- – eine Objekterkennung in dem jeweils von der Kamera aufgenommenen Bild und Spiegelbild durchführt, um die Position mindestens eines Objektdetails, bevorzugt einer Kante, in aufgenommenem Bild und Spiegelbild zu ermitteln,
- – weiterhin einen Größenverhältnis des besagten Objektdetails bzgl. der Größe in Bild und Spiegelbild ermittelt,
- – ferner an Hand der gewonnen Position bzw. des Größenvergleichs die räumliche Position des besagten Objektes bzw. des Objektdetails im Verhältnis zur Kamera ermittelt.
- Performing an object recognition in the image and mirror image respectively taken by the camera in order to determine the position of at least one object detail, preferably an edge, in recorded image and mirror image,
- Further determines a size ratio of said object detail with respect to the size in image and mirror image,
- - Further determined on the basis of the obtained position or the size comparison, the spatial position of said object or the object details in relation to the camera.
Die Festlegung des entsprechenden Objektdetails geschieht einfach durch Auswahl eines Bildabschnittes, z.B. des mittleren Bildpunktes, im Sichtfeld der Kamera.The Determining the corresponding object details is done simply by Selecting an image portion, e.g. of the middle pixel, in the field of view the camera.
Besagte Ermittlung der räumlichen Position des besagten Objektes bzw. des Objektdetails geschieht durch Vergleich mit einer Datenbank, die für eine Anzahl von Größenverhältnissen und Positionen von Objektdetails in Bild und Spiegelbild die zugeordneten räumlichen Positionen im Verhältnis zur Kamera enthält. Eine solche Datenbank wird vorab für eine gegebene Parameter wie Kameratyp und – ausrichtung sowie zugehörigem Spiegeltyp und -ausrichtung für eine Vielzahl von Objektpositionen erstellt. Mit Spiegelausrichtung ist insbesondere der Neigungswinkel des Spiegels zur optischen Achse der Kamera gemeint. Ferner können auch gleichzeitig mehrere Spiegel zum Einsatz kommen, die jeweils unterschiedliche Neigungswinkel zur optischen Achse der Kamera aufweisen.said Determination of spatial Position of the said object or the object details happens by comparing it with a database covering a number of proportions and positions of object details in image and mirror image associated with each other spatial Positions in proportion to the camera contains. Such a database will advance for a given parameter such as Camera type and orientation and related Mirror type and orientation for created a variety of object positions. With mirror alignment is in particular the angle of inclination of the mirror to the optical axis meant the camera. Furthermore, can At the same time several mirrors are used, each one have different angles of inclination to the optical axis of the camera.
Der mindestens eine Spiegel weist eine plane, konvexe oder konkave spiegelnde Oberfläche auf. Weiterhin kann der mindestens eine Spiegel in besonderen Ausgestaltungen im wesentlichen nur Licht ausgewählter Wellenlängen bzw. Wellenlängenbereiche, nicht aber des gesamte sichtbare Lichtspektrum reflektieren. Letztere Gestaltung muß aber nicht immer angewendet werden.Of the at least one mirror has a plane, convex or concave reflective Surface on. Furthermore, the at least one mirror in particular embodiments essentially only light selected wavelength or wavelength ranges, but not reflect the entire visible light spectrum. Latter But design does not have to always be applied.
Weiterhin kann die Kamera unbeweglich oder beweglich angeordnet sein.Farther The camera can be immovable or movable.
Die erfindungsgemäße Anordnung umfaßt ferner bevorzugt noch eine Lichtquelle zur Beleuchtung des in Rede stehenden Objektes, für das die Position ermittelt werden soll.The inventive arrangement further includes preferably still a light source for lighting the subject in question Object, for that the position should be determined.
Für besondere Anwendungszwecke umfaßt die Anordnung weiterhin einen autostereoskopischen Bildschirm, an dessen Oberkante die besagte Kamera und an dessen Unterkante der mindestens eine Spiegel installiert ist. Damit wird es möglich, räumlich wahrnehmbar dargestellte Objekte in Verbindung mit der durch die erfindungsgemäße Anordnung Position eines Objektes, etwa einer Fingerspitze, in Verbindung zu bringen. Somit wird eine räumlich-interaktive Darstellung geschaffen: Der Bildschirm zeigt räumliche Objekte, die vermittels des Fingers eines Benutzers „angeklickt" werden können.For special Applications includes the Arrangement also has an autostereoscopic screen, at the Top edge of the said camera and at the lower edge of at least a mirror is installed. This makes it possible to present spatially perceptible Objects in connection with the arrangement according to the invention Position of an object, such as a fingertip, in conjunction bring to. Thus, a spatially-interactive presentation created: The screen shows spatial objects, which means of a user's finger can be "clicked".
Die
Erfindung wird im folgenden an Hand einer Zeichnung näher erläutert. Es
zeigt
Bei
dieser beispielhaften Ausgestaltung der Anordnung nach
- – eine opto-elektronische
Kamera
1 , - – ein
für besagte
Kamera
1 mindestens teilweise sichtbarer Spiegel2 , dessen spiegelnde Oberfläche besagter Kamera1 zugewandt ist, so daß zwischen Kamera1 und Spiegel2 befindliche Objekte3 gleichzeitig als Bild und als Spiegelbild von der Kamera1 aufgenommen werden, sowie - – eine
(zeichnerisch nicht dargestellte) Auswerteelektronik für die von
der Kamera
1 erzeugten
- - an opto-electronic camera
1 . - - one for said camera
1 at least partially visible mirror2 whose reflecting surface said camera1 facing, so that between camera1 and mirrors2 located objects3 at the same time as a picture and as a mirror image of the camera1 be included, as well - - An evaluation (not shown in the drawing) for the of the camera
1 generated
Signale
zur Ermittlung der räumlichen
Position des besagten Objekts
Weiterhin
umfaßt
die Anordnung einen autostereoskopischen Bildschirm
Die
Auswerteelektronik für
die von der Kamera
Mit
der vorstehend beschriebenen Anordnung ist es möglich, räumlich wahrnehmbar dargestellte
Objekte
Die Erfindung bietet den Vorteil, daß vermöge einer einzigen Kamera Positionsermittlungen von Objekten in Echtzeit ermöglicht werden.The Invention offers the advantage that by means of a single camera position determinations of objects in real time become.
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410025516 DE102004025516A1 (en) | 2004-05-21 | 2004-05-21 | Object, e.g. user`s, fingertip, position determining arrangement ,for use in room, has opto-electronic camera with visible mirror and evaluation unit determining position of object based on signal generated by camera |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410025516 DE102004025516A1 (en) | 2004-05-21 | 2004-05-21 | Object, e.g. user`s, fingertip, position determining arrangement ,for use in room, has opto-electronic camera with visible mirror and evaluation unit determining position of object based on signal generated by camera |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004025516A1 true DE102004025516A1 (en) | 2005-12-29 |
Family
ID=35454782
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200410025516 Withdrawn DE102004025516A1 (en) | 2004-05-21 | 2004-05-21 | Object, e.g. user`s, fingertip, position determining arrangement ,for use in room, has opto-electronic camera with visible mirror and evaluation unit determining position of object based on signal generated by camera |
Country Status (1)
Country | Link |
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DE (1) | DE102004025516A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2350794A1 (en) * | 2008-11-05 | 2011-08-03 | SMART Technologies ULC | Interactive input system with multi-angle reflecting structure |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE637465C (en) * | 1934-03-23 | 1936-10-29 | Actiengesellschaft C P Goerz | Device for measuring the distance of targets |
DE4405531C2 (en) * | 1994-02-22 | 1996-01-25 | Deutsche Forsch Luft Raumfahrt | Method and device for detecting the geometry of spatial objects |
DE19716468A1 (en) * | 1997-04-21 | 1998-10-29 | Autronic Bildverarbeitung | Unit for surface inspection of wood specimen esp. for quality control-classification |
EP0880008A2 (en) * | 1997-05-21 | 1998-11-25 | Salzgitter AG | Procedure and device for a contactless measurement of the width of an object and its distance to a mirror surface |
US5936774A (en) * | 1995-08-29 | 1999-08-10 | Street; Graham S. B. | Autostereoscopic display |
WO2001046742A2 (en) * | 1999-12-13 | 2001-06-28 | The Trustees Of Columbia University In The City Of New York | Rectified catadioptric stereo sensors |
US20020036617A1 (en) * | 1998-08-21 | 2002-03-28 | Timothy R. Pryor | Novel man machine interfaces and applications |
EP1248227A2 (en) * | 2001-04-04 | 2002-10-09 | Matsushita Communication Industrial UK Ltd. | User interface device |
-
2004
- 2004-05-21 DE DE200410025516 patent/DE102004025516A1/en not_active Withdrawn
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE637465C (en) * | 1934-03-23 | 1936-10-29 | Actiengesellschaft C P Goerz | Device for measuring the distance of targets |
DE4405531C2 (en) * | 1994-02-22 | 1996-01-25 | Deutsche Forsch Luft Raumfahrt | Method and device for detecting the geometry of spatial objects |
US5936774A (en) * | 1995-08-29 | 1999-08-10 | Street; Graham S. B. | Autostereoscopic display |
DE19716468A1 (en) * | 1997-04-21 | 1998-10-29 | Autronic Bildverarbeitung | Unit for surface inspection of wood specimen esp. for quality control-classification |
EP0880008A2 (en) * | 1997-05-21 | 1998-11-25 | Salzgitter AG | Procedure and device for a contactless measurement of the width of an object and its distance to a mirror surface |
US20020036617A1 (en) * | 1998-08-21 | 2002-03-28 | Timothy R. Pryor | Novel man machine interfaces and applications |
WO2001046742A2 (en) * | 1999-12-13 | 2001-06-28 | The Trustees Of Columbia University In The City Of New York | Rectified catadioptric stereo sensors |
EP1248227A2 (en) * | 2001-04-04 | 2002-10-09 | Matsushita Communication Industrial UK Ltd. | User interface device |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2350794A1 (en) * | 2008-11-05 | 2011-08-03 | SMART Technologies ULC | Interactive input system with multi-angle reflecting structure |
EP2350794A4 (en) * | 2008-11-05 | 2013-01-09 | Smart Technologies Ulc | Interactive input system with multi-angle reflecting structure |
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Legal Events
Date | Code | Title | Description |
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8127 | New person/name/address of the applicant |
Owner name: NEWSIGHT GMBH, 07745 JENA, DE |
|
8139 | Disposal/non-payment of the annual fee |