DE10311511A1 - Autostereoscopic imaging method e.g. for television images, involves comparing image point of left image with image data of image point positioned in same row and column of right image - Google Patents

Autostereoscopic imaging method e.g. for television images, involves comparing image point of left image with image data of image point positioned in same row and column of right image Download PDF

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DE10311511A1
DE10311511A1 DE10311511A DE10311511A DE10311511A1 DE 10311511 A1 DE10311511 A1 DE 10311511A1 DE 10311511 A DE10311511 A DE 10311511A DE 10311511 A DE10311511 A DE 10311511A DE 10311511 A1 DE10311511 A1 DE 10311511A1
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image
image data
data
made visible
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DE10311511B4 (en
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Emin Yavuzkol
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Analysis (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

An autostereoscopic imaging method in which each stereo image is comprised of a left image received from a left camera, and a synchronously received right image received from a right camera, and in which the left and right images are digitalized into image data which is then made visible. In turn, the image data of each image point of the left image is compared with an image data of image point located in the same row and column and the image points of the right image and the image point differing from the left image are stored and the image data of the left image and only the deviating (differing) image data of the right image are made visible.

Description

Die Erfindung bezieht sich auf ein autostereoskopisches Raumbildverfahren, bei dem jedes Stereobild sich zusammensetzt aus einem von einer linken Kamera aufgenommenen linken Bild und einem von einer rechten Kamera synchron aufgenommenen rechten Bild und bei dem das linke und das rechte Bild in Bilddaten digitalisiert und diese Bilddaten sichtbar gemacht werden, wobei pro Stereobild nacheinander mindestens viermal pro Sekunde Bilddaten des linken und des rechten Bildes sichtbar gemacht werden.The invention relates to a autostereoscopic spatial imaging process in which each stereo image is different is composed of a left one taken by a left camera Image and a right one captured synchronously by a right camera Image and in which the left and right images are digitized in image data and this image data is made visible, per stereo image successively at least four times per second image data of the left and the right picture are made visible.

Ein derartiges Verfahren ist aus dem US-Patent 4 429 328 bekannt. Die beiden synchron aufnehmenden Kameras haben einen horizontalen Abstand voneinander, der dem Abstand der beiden Augen eines Menschen entspricht. Dieses ohne Brille arbeitende 3-D-Verfahren wurde unter der Bezeichnung VISIDEP-Verfahren auch im deutschen Fernsehen gezeigt. Das Fernsehbild erscheint dem Betrachter stereoskopisch, scheint aber zu pumpen, weil das rechte Bild gegenüber dem linken Bild vertikal versetzt gezeigt wird: Nach dem US-Patent 4 429 328 soll dieser vertikale Versatz 10 mm bis 15 mm betragen.Such a process is over U.S. Patent 4,429,328. The two recording synchronously Cameras have a horizontal distance from each other that is the distance the two eyes of a human being. This one working without glasses 3-D process was also called VISIDEP process shown on German television. The television picture appears to the viewer stereoscopic, but seems to be pumping because the image on the right is opposite Left picture is shown vertically offset: According to U.S. Patent 4 429 328, this vertical offset should be 10 mm to 15 mm.

Der Erfindung liegt die Aufgabe zugrunde, ein ohne Brille arbeitendes autostereoskopisches Raumbildverfahren aufzuzeigen, bei dem der störende Pumpeffekt nicht auftritt.The invention is based on the object an autostereoscopic spatial imaging process that works without glasses to show where the disturbing Pump effect does not occur.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Reihe nach die Bilddaten eines jeden Bildpunktes des linken Bildes mit den Bilddaten eines sich jeweils in der gleichen Zeile und Spalte befindenden Bildpunktes des rechten Bildes verglichen und die vom linken Bild abweichenden Bildpunkte des rechten Bildes gespeichert werden und die Bilddaten des linken Bildes und nur die abweichenden Bilddaten (Differenzdaten) des rechten Bildes sichtbar gemacht werden.This object is achieved according to the invention solved, that the The image data of each pixel of the left image in sequence with the image data one each in the same row and column located pixel of the right image compared and that of left image different pixels of the right image saved and the image data of the left image and only the deviating ones Image data (difference data) of the right image can be made visible.

Bei dieser Art der Bildwiedergabe tritt der Stereoeffekt auch ein, wenn das rechte Bild nicht um 10 bis 15 mm gegenüber dem linken Bild vertikal versetzt wiedergegeben wird.With this type of image reproduction the stereo effect also occurs if the right picture is not at 10 up to 15 mm opposite the left image is shown vertically offset.

Beim Sichtbarmachen der Differenzdaten können während der übereinstimmenden Bilddaten den einzelnen Bildpunkten oder Pixel feste Werte, z.B. Schwarz, zugeordnet werden. Damit bei der Wiedergabe der Differenzdaten die Farbe oder Helligkeit der Bildfolge nicht beeinträchtigt wird, kann den einzelnen Bildpunkten oder Pixel zwischen den Differenzdaten ein möglichst neutraler Wert, z.B. Grau, zugeordnet werden.When making the difference data visible can while the matching one Image data for the individual pixels or pixel fixed values, e.g. Black. So when the difference data is played back the color or brightness of the image sequence is not impaired, can be the individual pixels or pixels between the difference data one if possible neutral value, e.g. Gray, can be assigned.

Das Verfahren arbeitet wie folgt:

  • 1. Die Szene wird von zwei synchron laufenden Kameras aufgenommen. Die Kameras haben dabei einen horizontalen Abstand von 65 mm.
  • 2. Die Bilder der linken und rechten Kamera bzw. die beiden sogenannten Halbbilder werden digitalisiert und in einen ersten Speicher und zweiten Speicher abgelegt.
  • 3. Es erfolgt ein Vergleichen der beiden Halbbilder. Das linke Bild wird mit dem rechten Bild verglichen, und zwar angefangen beim ersten Punkt der ersten Zeile bis zum letzten Punkt der letzten Zeile, Punkt für Punkt, Zeile für Zeile.
  • 4. Beim Vergleich wird wie folgt abgefragt:
    Figure 00020001
  • 5. Bei der Bildwiedergabe wird in schneller Folge das rechte Halbbild und das Differenzsignal (das Bild in der Maske) gesendet.
The process works as follows:
  • 1. The scene is recorded by two synchronously running cameras. The cameras have a horizontal distance of 65 mm.
  • 2. The images of the left and right cameras or the two so-called fields are digitized and stored in a first memory and a second memory.
  • 3. The two fields are compared. The left picture is compared with the right picture, starting from the first point of the first line to the last point of the last line, point by point, line by line.
  • 4. The comparison asks as follows:
    Figure 00020001
  • 5. During image playback, the right field and the difference signal (the image in the mask) are sent in rapid succession.

Das Stereobild setzt sich also zusammen aus gespeicherten Signalen der rechten Kamera und den von der Maske abgerufenen Differenzsignalen der linken Kamera. Selbstverständlich kann sich das Stereobild auch zusammensetzen aus den gespeicherten Signalen der linken Kamera und den von der Maske abgerufenen Differenzsignalen der rechten Kamera.So the stereo image is composed from stored signals from the right camera and from the mask called difference signals of the left camera. Of course you can the stereo image is also composed of the stored signals the left camera and the difference signals retrieved from the mask the right camera.

Claims (3)

Autostereoskopisches Raumbildverfahren, bei dem jedes Stereobild sich zusammensetzt aus einem von einer linken Kamera aufgenommenen linken Bild und einem von einer rechten Kamera synchron aufgenommenen rechten Bild und bei dem das linke und das rechte Bild in Bilddaten digitalisiert und diese Bilddaten sichtbar gemacht werden, wobei pro Stereobild nacheinander mindestens viermal pro Sekunde Bilddaten des linken und des rechten Bildes sichtbar gemacht werden, dadurch gekennzeichnet, daß der Reihe nach die Bilddaten eines jeden Bildpunktes des linken Bildes mit den Bilddaten eines sich jeweils in der gleichen Zeile und Spalte befindenden Bildpunktes des rechten Bildes verglichen und die vorn linken Bild abweichenden Bildpunkte des rechten Bildes gespeichert werden und die Bilddaten des linken Bildes und nur die abweichenden Bilddaten (Differenzdaten) des rechten Bildes sichtbar gemacht werden.Autostereoscopic spatial image method, in which each stereo image is composed of a left image taken by a left camera and a right image taken synchronously by a right camera, and in which the left and right images are digitized in image data and this image data is made visible, with each stereo image successively at least four times per second, image data of the left and right images are made visible, characterized in that the image data of each pixel of the left image are compared in sequence with the image data of a pixel of the right image located in the same row and column and the pixels of the right image deviating from the left image are stored and the image data of the left image and only the deviating image data (difference data) of the right image are made visible. Verfahren nach Anspruch, 1, dadurch gekennzeichnet, daß in einem ersten Bildspeicher die Bilddaten des linken Bildes, in einem zweiten Bildspeicher die Bilddaten des rechten Bildes und in einem dritten Bildspeicher (Maske) die Differenzdaten gespeichert werden und bei der Bildwiedergabe nacheinander oder in Perioden die Bilddaten des ersten Bildspeichers und die Differenzdaten des dritten Bildspeichers sichtbar gemacht werden, wobei im dritten Bildspeicher bei den übereinstimmenden Bilddaten den Bildpunkten ein fester Wert, z.B. Schwarz, zugeordnet wird.A method according to claim 1, characterized in that in one first image memory the image data of the left image, in a second Image storage the image data of the right image and in a third Image memory (mask) the difference data are saved and at the image reproduction one after the other or in periods the image data of the first image memory and the difference data of the third image memory be made visible, whereby in the third image memory with the matching Image data the pixels a fixed value, e.g. Black, assigned becomes. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß den übereinstimmenden Bilddaten je Bildpunkt im dritten Bildspeicher als fester Wert ein nach Helligkeit und Farbe möglichst neutraler Wert, z.B. Grau, zugeordnet wird.A method according to claim 2, characterized in that the matching Image data per pixel in the third image memory as a fixed value according to brightness and color if possible neutral value, e.g. Gray, is assigned.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101304483B (en) * 2007-05-07 2012-07-04 三星电子株式会社 Method and apparatus for image processing by using stored image

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US4429328A (en) * 1981-07-16 1984-01-31 Cjm Associates Three-dimensional display methods using vertically aligned points of origin
US4567513A (en) * 1983-11-02 1986-01-28 Imsand Donald J Three dimensional television system
DE3724558A1 (en) * 1987-07-24 1987-12-03 Peter Klatt Three-dimensional (3-D) television without any additional viewing aids
US5751927A (en) * 1991-03-26 1998-05-12 Wason; Thomas D. Method and apparatus for producing three dimensional displays on a two dimensional surface
GB2326732A (en) * 1997-06-28 1998-12-30 Malcolm Bailey Three dimensional imaging
US6008839A (en) * 1994-11-25 1999-12-28 Carl-Zeiss-Stiftung Process and apparatus for displaying three-dimensional video images

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Publication number Priority date Publication date Assignee Title
US4429328A (en) * 1981-07-16 1984-01-31 Cjm Associates Three-dimensional display methods using vertically aligned points of origin
US4567513A (en) * 1983-11-02 1986-01-28 Imsand Donald J Three dimensional television system
DE3724558A1 (en) * 1987-07-24 1987-12-03 Peter Klatt Three-dimensional (3-D) television without any additional viewing aids
US5751927A (en) * 1991-03-26 1998-05-12 Wason; Thomas D. Method and apparatus for producing three dimensional displays on a two dimensional surface
US6008839A (en) * 1994-11-25 1999-12-28 Carl-Zeiss-Stiftung Process and apparatus for displaying three-dimensional video images
GB2326732A (en) * 1997-06-28 1998-12-30 Malcolm Bailey Three dimensional imaging

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FLORIAN, M.: "Das Visidep-Verfahren" *
FLORIAN, M.: "Das Visidep-Verfahren"; In: http://w ww.stud.tuilmenau.de/-flma-mt/video-3d/beschreibun g-3.html, 2001
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101304483B (en) * 2007-05-07 2012-07-04 三星电子株式会社 Method and apparatus for image processing by using stored image

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