EP1004208A1 - Visionneuse stereoscopique - Google Patents

Visionneuse stereoscopique

Info

Publication number
EP1004208A1
EP1004208A1 EP98938514A EP98938514A EP1004208A1 EP 1004208 A1 EP1004208 A1 EP 1004208A1 EP 98938514 A EP98938514 A EP 98938514A EP 98938514 A EP98938514 A EP 98938514A EP 1004208 A1 EP1004208 A1 EP 1004208A1
Authority
EP
European Patent Office
Prior art keywords
strips
image
mask
lens
opaque
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Withdrawn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
EP98938514A
Other languages
German (de)
English (en)
Other versions
EP1004208A4 (fr
Inventor
Anthony John Gardner
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
Publication of EP1004208A1 publication Critical patent/EP1004208A1/fr
Publication of EP1004208A4 publication Critical patent/EP1004208A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/20—Image signal generators
    • H04N13/204—Image signal generators using stereoscopic image cameras
    • H04N13/239—Image signal generators using stereoscopic image cameras using two two-dimensional [2D] image sensors having a relative position equal to or related to the interocular distance
    • 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
    • H04N13/305—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using lenticular lenses, e.g. arrangements of cylindrical lenses
    • 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
    • H04N13/31—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using parallax barriers
    • 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
    • H04N13/324—Colour aspects

Definitions

  • the present invention relates to a stereoscopic viewing system and, more particularly, to such a system adapted for viewing a stereoscopic image without the aid of spectacles or similar image separating device located close to the eyes of a viewer.
  • a stereoscopic viewing system comprising a raw image overlaid by a mask arranged so that a viewer can resolve a stereoscopic image derived from said raw image in a focal plane of predetermined width located a predetermined distance from said mask.
  • said raw image is comprised of alternating left image strips and right image strips on both of pitch P.
  • said mask includes vertical lenticular lens strips corresponding to said left and right image strips and arranged to refract light received therefrom so as to cause a stereoscopic image to be resolved by said viewer in said focal plane.
  • said mask further includes opaque vertical strips interposed in between said lenticular lens strips.
  • said opaque strips are of pitch P and overlay half the width of adjacent left and right image strips.
  • said raw image includes raw image opaque strips interposed between said alternating left image strips and right image strips.
  • said lenticular lens strips are in the form of tri-elliptical lenses.
  • said lenticular lens strips are in the form of a circular cross-section lens.
  • said circular cross-section lens is formed as a series of adjacent, planar approximations.
  • said mask is formed as a base elongate portion of optical material into a first surface of which are formed lens elements.
  • said base elongate portion includes opaque strips placed on said first surface between said lens elements.
  • Figure 1 illustrates the general layout of a stereoscopic viewing system to which embodiments of the present invention can be applied;
  • Figure 2 illustrates steps in the formation of a raw stereoscopic image to which a first embodiment of the invention can be applied;
  • Figure 3 illustrates a mask applicable to the raw image of Figure 2 according to a first embodiment of the invention;
  • Figure 4 illustrates a mask applicable to a flat panel or plasma display
  • Figure 5 illustrates a specific driver circuit for the production of an active raw image
  • Figure 6 illustrates an arrangement of raw image and mask according to a further embodiment of the invention
  • Figure 7 illustrates a raw image and mask layout according to a further embodiment of the invention
  • Figure 8 is a detailed view in cross section of the mask of Figure 7;
  • Figure 9 is a detailed view in side section of a mask according to a further embodiment of the invention.
  • a stereoscopic viewing system 10 comprising a raw image 11 and a mask 12.
  • the mask 12 includes an optical arrangement whereby light rays from the raw image 11 are directed to either the left eye 13 or right eye 14 of a viewer 15 so as to form a three-dimensional image to the viewer.
  • the raw image 11 is formed as follows:-
  • a stereoscopic image is generated initially as two separate images comprising a left eye view and a right eye view.
  • the left eye view is labelled image A whilst the right eye view is labelled image B.
  • Each image is then divided up into vertical strips of pitch P.
  • Figure 2 A represents the left image thus partitioned.
  • Figure 2B represents the right eye image thus partitioned.
  • Consecutive strips are then interchanged between the two images as indicated by the arrows thereby to produce a raw image 11 which combines both the left and right images in it in alternating strips as shown.
  • the raw image may be in the form of a photograph or like 'passive'/reflective image source or it may be in the form of a video display or like 'active'/light emitting image source. In either case, light reflected from or light emanating from the raw image needs to be optically processed through a mask 12 so as to redirect the light rays for reconstruction by eyes 13, 14.
  • EP744872 discloses a particular implementation of this kind of stereoscopic image system wherein the mask 12 (termed barrier 2 in EP744872) is an electronically controlled shutter mechanism which can dynamically switch and direct the respective right and left images to the respective right and left observer eyes.
  • the light refracting element of a "lenticular" system more often includes a lens such as lens element 48 shown, for example, in Figure 31A of EP744872.
  • FIGs. 2 A and 2B shows strip widths for the alternating left eye images A and right eye images B of width or pitch P.
  • a good summary of the history and implementation of this kind of system is to be found in IEEE publication "Present Status of Three-Dimensional Television Research" in Proceedings of IEEE volume 83, No 7 July 1995.
  • Figure 3 A shows the raw image 11 to which the mask 12 of Figure 3B is applied or overlaid, and including opaque strips 17 as illustrated.
  • the displacement or distance D between the raw image 11 and the mask 12 can, according to the implementation, vary between 0 and typically around 2- 13 cms depending on the nature of the light refracting element used to form the lens strips 16.
  • the raw image 11 of Figure 3 A comprising alternating vertical strips of left image A and right image B is overlaid by the mask generally illustrated in Figure 3B.
  • the mask comprises vertical lens strips 16 of pitch P arranged to overlay a half- width of a left image strip and a half- width of a right image strip.
  • the lens strips 16 are of the lenticular type and can be constructed in the manner described in U.S. Patent No. 5,258,833. Interposed between the lens strips 16 are opaque strips 17, also of pitch P and also arranged so as to overlay a half- width of adjacent left image strips and right image strips A, B as generally illustrated in Figure 3B.
  • FIG 4A the manner of construction of a colour raw image 18 is illustrated in Figure 4A and comprises alternating left image colour strips 19 and right image colour strips 20.
  • Each image strip is, itself, comprised of three primary colour strips labelled R (red) G (green) and B (blue).
  • the corresponding colour mask 21 is illustrated in Figure 4B and comprises left vertical lens strips 22 and alternating right vertical lens strips 23, each constructed according to the lenticular methods previously known.
  • an opaque strip 24 is placed, as illustrated in Figure 4B immediately between adjacent vertical lens strips 22, 23 and, correspondingly, 23, 22.
  • the pitch of the opaque strip 24 is such as to cover a primary colour strip, a different colour strip in each consecutive occurrence.
  • the opaque strips remove some redundant image information according to a predetermined algorithm.
  • the effect, it is postulated, is to widen the width W of the focal plane 25 of viewer 15 in which a stereoscopic image can be resolved.
  • Figure 5 illustrates a driver arrangement suitable for use with the embodiments of the invention where an active display (such as a CRT, LEDs or back lit matrix) wherein a parallax image source 26 resolves a stereoscopic image comprising a left eye image A and a right eye image B into an A data stream 27 and a B data stream 28 which are fed to screen driver 29 which resolves the data streams 27, 28 into respective vertical strip data streams 30, 31 which are directed to the respective vertical strips comprising raw image 11.
  • Figure 6 illustrates in plan view a further embodiment of the invention comprising raw image 111 made up of respective left image strips 113 and right image strips 114, all of equal width or pitch P and having opaque strips 117 or width or pitch P laid thereover on the viewing side as illustrated in Figure 6.
  • the opaque strips 117 are of width or pitch P and are arranged so that each overlies half of the area of adjoining left and right image strips 113, 114.
  • the stereoscopic viewing system 110 includes mask 112 comprised of a linear array of tri-elliptical lenses 118. Each tri-elliptical 118 is itself formed from three intersecting strip lenses of ellipsoid cross-section as perhaps best seen in detail in Figure 8.
  • each of these lenses 118 is as typically found in "lenticular" stereoscopic systems, being to refract the light received from collective left image strips 113 to a left eye 115 of a viewer and to also refract (bend) the light received from collective right image strips 114 to the right eye 116 of a viewer when located in a specified focal plane 119.
  • the lenses 118 are contiguously connected in a linear array as illustrated in Figure 6.
  • the only masking of light information is performed by opaque strips 117 located, in this instance, directly on the raw image 111 as illustrated.
  • Figure 7 illustrates a further embodiment of the invention comprising a stereoscopic viewing system 210 having a raw image 211 and a mask 212 but wherein all other components are numbered as for the embodiment of Figure 6 where like components are utilised.
  • opaque mask elements are placed between each tri- elliptical lens 118 in the manner illustrated in Figure 7.
  • the opaque strips 117 are also utilised applied directly to the raw image 211.
  • the width of the opaque mask elements 213 interconnecting the tri-elliptical lenses 118 is the dimension P.
  • FIG. 8 a detailed cross section of the mask 212 of Figure 7 is illustrated showing the tri-elliptical 118 to be formed as part of an elongate strip of optical material 214 made from optical material having a refractive index between 1 and 2.
  • the strip 214 comprises a base elongate portion 215 into which one face has formed the tri-elliptical lens structure 118 and between which planar portions 216 having an opaque strip 217 applied thereover as illustrated in Figure 8.
  • Figure 9 illustrates an alternative mask 312 suitable for use with any of the previously mentioned embodiments of stereoscopic viewing system.
  • the mask 312 comprises a linear array of spherical cross-section lenses in between which are located opaque joining portions 314 formed as a square cross-section block having a triangular cross section opaque portion 315 located therein as generally illustrated in Figure 9.
  • the surface of the circular cross-section lenses 313 can be profiled as a set of planar portions forming a segmented planar approximation 316 to a cylindrical or curved surface, also as illustrated in Figure 9.
  • Embodiments of the invention are applicable to stereoscopic viewing systems of many kinds including stereoscopic television systems where it is desired to provide a stereoscopic image to a viewer without the viewer needing to use glasses or other equivalent encumbrances.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Stereoscopic And Panoramic Photography (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

Cette visionneuse stéréoscopique (10, 110, 210) renferme une image brute (11, 111, 211) que surmonte un masque (12, 112, 212) à une distance D. Ce masque renferme des bandes opaques (17, 117, 217) disposées de manière à être sus-jacentes à des parties de bandes d'image, droite et gauche (13, 14 113, 114). Dans une réalisation, les bandes opaques existent en tant que partie de l'image brute (11, 111, 211) ou du masque (112, 212) ou des deux.
EP98938514A 1997-08-12 1998-08-12 Visionneuse stereoscopique Withdrawn EP1004208A4 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AUPO052397 1997-08-12
AUPO8523A AUPO852397A0 (en) 1997-08-12 1997-08-12 Stereoscopic viewing system
PCT/AU1998/000635 WO1999009750A1 (fr) 1997-08-12 1998-08-12 Visionneuse stereoscopique

Publications (2)

Publication Number Publication Date
EP1004208A1 true EP1004208A1 (fr) 2000-05-31
EP1004208A4 EP1004208A4 (fr) 2003-07-09

Family

ID=3802812

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98938514A Withdrawn EP1004208A4 (fr) 1997-08-12 1998-08-12 Visionneuse stereoscopique

Country Status (10)

Country Link
EP (1) EP1004208A4 (fr)
JP (1) JP2001516068A (fr)
KR (1) KR20010022849A (fr)
CN (1) CN1270738A (fr)
AU (1) AUPO852397A0 (fr)
CA (1) CA2300871A1 (fr)
ID (1) ID24328A (fr)
IL (1) IL134489A0 (fr)
NZ (1) NZ503041A (fr)
WO (1) WO1999009750A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7813042B2 (en) 2005-09-12 2010-10-12 Sharp Kabushiki Kaisha Multiple-view directional display
US8687273B2 (en) 2006-09-07 2014-04-01 Sharp Kabushiki Kaisha Image display device, electronic device, and parallax barrier element
DE102009054706B4 (de) 2009-12-15 2025-03-06 3D Global Holding Gmbh Vorrichtung zur räumlichen Darstellung
BR112013030401A2 (pt) * 2011-05-30 2016-12-13 Koninkl Philips Nv dispositivo de tela estereoscópica
JP2013037264A (ja) * 2011-08-10 2013-02-21 Sharp Corp 画像表示装置、画像表示端末および画像の表示を制御するための制御方法
UA79936U (en) 2012-10-22 2013-05-13 Василий Борисович Однороженко Autostereoscopic system

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3597042A (en) * 1968-11-05 1971-08-03 Csf Apparatus for viewing pictures in apparent 3d effect
JPS573487A (en) * 1980-06-09 1982-01-08 Sony Corp Color three dimensional video display device
JPS5711592A (en) * 1980-06-24 1982-01-21 Sony Corp Color three dimensional video display device
FR2488475A1 (fr) * 1980-08-11 1982-02-12 Chauvierre Marc Procede permettant la vision en relief sans lunettes d'une image de television
FR2531252B1 (fr) * 1982-07-29 1987-09-25 Guichard Jacques Procede d'affichage d'images en relief et dispositif de mise en oeuvre
US4737840A (en) * 1983-07-31 1988-04-12 Nec Home Electronics Ltd. Color image projection apparatus with a screen including a shield plate, light-emitting layer and diffusion surface to expand viewing range of bright pictures
DE3545459A1 (de) * 1985-12-20 1987-07-02 Bayer Ag Verfahren zum faerben und bedrucken von polyesterfasermaterialien
EP0316465B1 (fr) * 1987-11-14 1993-10-27 Dimension Technologies, Inc. Dispositif d'affichage autostéréoscopique avec des lignes d'illumination et des valves de lumière
US5049987A (en) * 1989-10-11 1991-09-17 Reuben Hoppenstein Method and apparatus for creating three-dimensional television or other multi-dimensional images
GB2272555A (en) * 1992-11-11 1994-05-18 Sharp Kk Stereoscopic display using a light modulator
JPH06311537A (ja) * 1993-04-26 1994-11-04 Sanyo Electric Co Ltd 投写型映像表示装置
GB2304921A (en) * 1995-09-06 1997-03-26 Thomson Multimedia Sa Stereoscopic display having lenticular lensheet and diffuser

Also Published As

Publication number Publication date
WO1999009750A1 (fr) 1999-02-25
JP2001516068A (ja) 2001-09-25
EP1004208A4 (fr) 2003-07-09
ID24328A (id) 2000-07-13
CN1270738A (zh) 2000-10-18
NZ503041A (en) 2002-09-27
CA2300871A1 (fr) 1999-02-25
KR20010022849A (ko) 2001-03-26
AUPO852397A0 (en) 1997-09-04
IL134489A0 (en) 2001-04-30

Similar Documents

Publication Publication Date Title
EP0859525B1 (fr) Dispositif d'affichage d'images stéreoscopiques utilisant un motif de masque spécifique
US6943788B2 (en) Three-dimensional image display apparatus
JP4861180B2 (ja) ３ｄディスプレイ装置用バックライト
CN100406964C (zh) 多视图定向显示器
US7920226B2 (en) Display comprising plurality of birefringent protrusions on a waveguide of a backlight
CN102854644B (zh) 显示装置
US8749722B2 (en) Display device displaying an image for a first viewpoint and an image for a second viewpoint
US7313309B2 (en) Optical device and color display unit using the optical device
US20020018040A1 (en) 3-D HLCD system and method of making
EP0760490A2 (fr) Dispositif d'affichage d'image
EP2218261A1 (fr) Dispositif d'affichage autostéréoscopique
CA2082854A1 (fr) Filtre et methode de transmission
JPH05273675A (ja) 立体像の記録および再生方式
EP0381417B1 (fr) Ecran de projection par transparence et son procédé de fabrication
US6727866B2 (en) Parallax barrier type autostereoscopic display device
JPH09318911A (ja) 立体画像表示装置
EP1004208A1 (fr) Visionneuse stereoscopique
WO2007039868A1 (fr) Amelioration d'une conception lenticulaire par application d'une fonction de blocage de la lumiere
JP2944850B2 (ja) ３次元ディスプレイ装置
JPH10293542A (ja) 画像表示装置
EP1531632A2 (fr) Système d'affichage d'images bidimensionnel stéréoscopique et méthode d'affichage d'images
US20080231951A1 (en) 3D Display With An Improved Pixel Structure (Pixelsplitting)
JP2000075243A (ja) 立体表示装置
AU763323B2 (en) Stereoscopic viewing system
EP0471478B1 (fr) Appareil d'affichage à grand écran

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20000303

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

A4 Supplementary search report drawn up and despatched

Effective date: 20030526

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20040302

REG Reference to a national code

Ref country code: HK

Ref legal event code: WD

Ref document number: 1028512

Country of ref document: HK