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WO2006000072A1 - Systeme et procede de capture, de stockage et d'affichage d'images stereoscopiques - Google Patents

Systeme et procede de capture, de stockage et d'affichage d'images stereoscopiques Download PDF

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Publication number
WO2006000072A1
WO2006000072A1 PCT/BR2005/000123 BR2005000123W WO2006000072A1 WO 2006000072 A1 WO2006000072 A1 WO 2006000072A1 BR 2005000123 W BR2005000123 W BR 2005000123W WO 2006000072 A1 WO2006000072 A1 WO 2006000072A1
Authority
WO
WIPO (PCT)
Prior art keywords
capture
store
fact
stereoscopic images
instrument
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.)
Ceased
Application number
PCT/BR2005/000123
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English (en)
Inventor
Jorge Mitre
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 WO2006000072A1 publication Critical patent/WO2006000072A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/13—Ophthalmic microscopes
    • A61B3/132—Ophthalmic microscopes in binocular arrangement
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/13—Ophthalmic microscopes
    • A61B3/135—Slit-lamp microscopes

Definitions

  • the present invention refers to the field of capturing, reproducing and showing images in three dimensions, commonly known as 3-D, particularly suitable for applying in medicine, in surgery and, especially, in ophthalmology.
  • To perceive depth i.e., the capacity of the brain to see the environment in three dimensions, is based on the fact that the right and left eyes see such an environment from different viewing angles.
  • the images captured by both eyes are slightly different, such a difference making spatial or in 3-D perception possible.
  • the stereoscopic techniques are not limited to static images; they can also be used for moving images.
  • the first applications in this field were the currently obsolete cinemas 3- D, in which the images corresponding to scenes seen by the right (R) and left (L) eyes were recorded on the same film frames using different colours, for example, red and blue.
  • the use of different colours resulted in a precarious image quality, consequently, such system was abandoned.
  • a more perfected system is based on separating the R and L images using different polarizations, generally orthogonal in relation on to the other.
  • the above mentioned system has a disadvantage of the quality of the image being influenced by the observer' s head movement. Indeed, the inclination of the eyeglasses impairs the filtering capability of the polarized images, resulting in a deterioration of the stereoscopic effect.
  • the colour reproduction quality is precarious, being substantially worse than that of conventional coloured television sets.
  • a first objective of the invention constitutes providing a 3-D system where the observer' s head movement does not impair the stereoscopic reproduction quality.
  • Another important objective constitutes providing a system and method particularly suitable for ophthalmology.
  • Another objective constitutes providing a system and method that are easily adaptable to surgical microscopes as well as to de biomicroscopy instruments (slit lamp or the like) .
  • Another objective constitutes providing a system that allows the documentation of surgical interventions and ophtalmoscopic images
  • Another objective constitutes providing a system where the colour reproduction is comparable with that obtained in coloured TV sets or video monitors.
  • the invention attains the above objectives by- providing a system where two cameras coupled to a stereoscopic ophthalmologic instrument are used, the images captured by said cameras being multiplexed in time and transmitted or recorded on a sole video channel, being reproduced in the form of a sequence of alternated R and L images by means of a monitor or projectors.
  • the capturing of images is carried out by deviating part of each of the beams by means of a beam slitter placed between each ocular and objective lens of the instrument.
  • the capturing of images is carried out by two cameras directly coupled to the observer's oculars.
  • said instrument consists of a stereoscopic ophthalmologic microscope.
  • said instrument consists of a biomicroscopy instrument by slit lamp.
  • the viewing occurs by means of visualizers equipped with a selective occlusion optical system, capable of blocking and unblocking the view of each eye, alternatively.
  • said alternation is synchronized with the image alternation showing on the screen.
  • said visualizes consist of eyeglasses equipped with lenses with liquid crystal elements.
  • Fig. 1 shows, by means of a block diagram, the general display of the proposed system.
  • Fig. 2 shows, by means of a block diagram, a second embodiment of the invention.
  • the system proposed comprises a stereoscopic microscope 12 focused on the operating field, in the case the patient's right eye 10, the image being captured by two optical systems corresponding to the surgeon's right and left eyes.
  • a beam slitter formed by a semi-mirrored transparent sheet 15a, 15b (“beam slitters”) that divides each beam 13a, 13b into two components, is placed.
  • the first goes through the referred element and follows in a straight line up to the corresponding ocular 22a, 22b and the second 17a, 17b is reflected in a 90 degree angle being directed towards one of the cameras 18a, 18b, which capture the R and L images transforming them into video electrical signals.
  • the electrical signals supplied by the cameras are sent via lines 20a, 20b to multiplexator 21, where a commutation circuit forms a sole signal by means of the switching between the R and L channels, multiplexing them in time, corresponding to an alternated image sequence captured by each camera.
  • the multiplexed signal may be recorded on digital media, such as a DVC on a recorder 23, or transmitted for reproduction in real time, through a communication means, to one or more video monitors 25, which can be a common television set.
  • digital media such as a DVC on a recorder 23, or transmitted for reproduction in real time, through a communication means, to one or more video monitors 25, which can be a common television set.
  • video monitors 25 which can be a common television set.
  • Another way of showing is by means of two projectors pointed towards a screen and also by a computer.
  • the observer To observer the image, the observer must use an especial visualizer, represented in the drawing by a pair of eyeglasses 27, provided by an occlusion optical system, to unblock the light transmission, first by one, then by the other lens.
  • This unblocking occurs alternatively with the same frequency of the R and L images showing on the monitor's screen.
  • the synchronism between the image on the screen and the mentioned unblocking is provided by line 28, which sends to eyeglasses 27 the image commutation synchronism component extracted from the video signal by the separating circuit 24.
  • the commutation frequency of R and L images if sufficiently high to avoid any scintillation.
  • occlusion and unblocking of lenses may be provided by devices based on liquid crystal, which have the advantage of reduced costs.
  • the image may be visualized by a plurality of observers, being enough for such that they are all provided with eyeglasses 27 synchronized by lines 28.
  • a alternative way of providing this synchronization without using wires consists in using infrared or radio links, which will require that the eyeglasses are equipped with proper receivers and batteries.
  • the same system can be used to provide synchronism, by sending ultrasound signals in the same audio line.
  • the plug that normally would be used to couple the earphones to the connector provided in every seat will be modification, in this case, in order to provide ultrasound filtering, its treatment and sending to the eyeglasses by a separate line or by the eyeglasses themselves.
  • Fig. 2 shows a second embodiment of the invention, where cameras 18a and 18b are coupled direct to the respective oculars, the other parts of the equipment remaining unaltered.
  • the invention has been described based on a preferred embodiment, modifications can be introduced by those skilled in the art, keeping within the basic inventive concept.
  • the video signal transmission means between multiplexator 22 and the showing site are not limited to physical lines (metallic or optic fibres) being possible to use links via radio, microwaves, TV channel or satellite.
  • the recorded material on DVC can be transported and reproduced in the most different locations or occasions, and also by two projectors with R and L polarized filters and observer (s) with polarized eyeglasses (dismissing in this case the alternated occlusion) .

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Biophysics (AREA)
  • Ophthalmology & Optometry (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

Système et procédé permettant de capturer, de stocker et d'afficher des images stéréoscopiques. L'ensemble comprend un instrument stéréoscopique binoculaire d'ophtalmologie (12) équipé de deux caméras (18a, 18b) pour la capture de composants d'image correspondant aux yeux droit et gauche, un multiplexeur (21) produisant un signal vidéo multiplexé, un dispositif de transmission du signal vidéo multiplexé, au moins un dispositif vidéo reproducteur d'image (25), au moins un dispositif d'affichage (27) doté de moyens de blocage et de déblocage (27d, 27e) de la vue de chaque oeil et des moyens de synchronisation dudit déblocage. L'instrument de l'invention peut être un microscope stéréoscopique binoculaire ou un instrument de biomicroscopie éclairé par une lampe à fente.
PCT/BR2005/000123 2004-06-29 2005-06-29 Systeme et procede de capture, de stockage et d'affichage d'images stereoscopiques Ceased WO2006000072A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BRPI0402602-0 2004-06-29
BRPI0402602 BRPI0402602A (pt) 2004-06-29 2004-06-29 Sistema e processo para captação, armazenagem e exibição de imagens estereoscópicas

Publications (1)

Publication Number Publication Date
WO2006000072A1 true WO2006000072A1 (fr) 2006-01-05

Family

ID=34230465

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BR2005/000123 Ceased WO2006000072A1 (fr) 2004-06-29 2005-06-29 Systeme et procede de capture, de stockage et d'affichage d'images stereoscopiques

Country Status (2)

Country Link
BR (1) BRPI0402602A (fr)
WO (1) WO2006000072A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009086065A3 (fr) * 2007-12-21 2009-08-27 Alcon Refractivehorizons, Inc. Système de microscope virtuel pour surveiller le progrès d'une chirurgie d'ablation de la cornée et procédés associés
US7784946B2 (en) 2007-12-21 2010-08-31 Alcon Refractivehorizons, Inc. Virtual microscope system for monitoring the progress of corneal ablative surgery and associated methods
US8049958B2 (en) 2007-04-27 2011-11-01 Haag Streit Ag Optical component for a stereomicroscope
EP2446812A1 (fr) * 2010-10-26 2012-05-02 Haag-Streit Ag Appareil d'analyse oculaire doté d'une sortie d'image numérique
JP2017023583A (ja) * 2015-07-27 2017-02-02 株式会社トプコン 眼科用顕微鏡
WO2019056042A1 (fr) * 2017-09-19 2019-03-28 Ellex Medical Pty Ltd Imagerie ophtalmique à double caméra
JP2019126735A (ja) * 2018-01-25 2019-08-01 ハーグ−シュトライト アーゲー 眼の検査装置
CN119174585A (zh) * 2024-11-26 2024-12-24 平阳县人民医院 一种与眼科手术显微镜结合的光学相干弹性成像装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4786154A (en) * 1986-12-16 1988-11-22 Fantone Stephen D Enhanced-image operating microscope
DE3737935A1 (de) * 1987-11-07 1989-05-18 Proxitronic Funk Gmbh & Co Kg Stereo-farbfernseh-mikroskop
US5867210A (en) * 1996-02-09 1999-02-02 Rod; Samuel R. Stereoscopic on-screen surgical microscope systems

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4786154A (en) * 1986-12-16 1988-11-22 Fantone Stephen D Enhanced-image operating microscope
DE3737935A1 (de) * 1987-11-07 1989-05-18 Proxitronic Funk Gmbh & Co Kg Stereo-farbfernseh-mikroskop
US5867210A (en) * 1996-02-09 1999-02-02 Rod; Samuel R. Stereoscopic on-screen surgical microscope systems

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8049958B2 (en) 2007-04-27 2011-11-01 Haag Streit Ag Optical component for a stereomicroscope
WO2009086065A3 (fr) * 2007-12-21 2009-08-27 Alcon Refractivehorizons, Inc. Système de microscope virtuel pour surveiller le progrès d'une chirurgie d'ablation de la cornée et procédés associés
US7784946B2 (en) 2007-12-21 2010-08-31 Alcon Refractivehorizons, Inc. Virtual microscope system for monitoring the progress of corneal ablative surgery and associated methods
JP2013540538A (ja) * 2010-10-26 2013-11-07 ハーグ−シュトライト アーゲー デジタルイメージ出力を有する検眼装置
WO2012055050A1 (fr) * 2010-10-26 2012-05-03 Haag-Streit Ag Appareil d'examen ophtalmologique à imagerie numérique
CN103179896A (zh) * 2010-10-26 2013-06-26 哈格-斯特莱特有限公司 具有数字图像输出的眼睛检查设备
EP2446812A1 (fr) * 2010-10-26 2012-05-02 Haag-Streit Ag Appareil d'analyse oculaire doté d'une sortie d'image numérique
US9301682B2 (en) 2010-10-26 2016-04-05 Haag-Streit Ag Eye examination apparatus with digital image output
CN103179896B (zh) * 2010-10-26 2016-10-12 哈格-斯特莱特有限公司 具有数字图像输出的眼睛检查设备
JP2017023583A (ja) * 2015-07-27 2017-02-02 株式会社トプコン 眼科用顕微鏡
WO2019056042A1 (fr) * 2017-09-19 2019-03-28 Ellex Medical Pty Ltd Imagerie ophtalmique à double caméra
JP2019126735A (ja) * 2018-01-25 2019-08-01 ハーグ−シュトライト アーゲー 眼の検査装置
CN119174585A (zh) * 2024-11-26 2024-12-24 平阳县人民医院 一种与眼科手术显微镜结合的光学相干弹性成像装置

Also Published As

Publication number Publication date
BRPI0402602A (pt) 2005-03-15

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