CA2175200A1 - Technique for Depth of Field Viewing of Images with Improved Clarity and Contrast - Google Patents

Technique for Depth of Field Viewing of Images with Improved Clarity and Contrast

Info

Publication number
CA2175200A1
CA2175200A1 CA2175200A CA2175200A CA2175200A1 CA 2175200 A1 CA2175200 A1 CA 2175200A1 CA 2175200 A CA2175200 A CA 2175200A CA 2175200 A CA2175200 A CA 2175200A CA 2175200 A1 CA2175200 A1 CA 2175200A1
Authority
CA
Canada
Prior art keywords
image
screen
probes
depth
imaging
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.)
Granted
Application number
CA2175200A
Other languages
French (fr)
Other versions
CA2175200C (en
Inventor
Tony Petitto
Stanislaw Loth
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 CA2175200A1 publication Critical patent/CA2175200A1/en
Application granted granted Critical
Publication of CA2175200C publication Critical patent/CA2175200C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/86—Vessels; Containers; Vacuum locks
    • H01J29/89—Optical or photographic arrangements structurally combined or co-operating with the vessel
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/40—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images giving the observer of a single two-dimensional [2D] image a perception of depth
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/04—Prisms
    • G02B5/045—Prism arrays
    • 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
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/89—Optical components associated with the vessel
    • H01J2229/893—Optical components associated with the vessel using lenses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
    • H04N13/189—Recording image signals; Reproducing recorded image signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
    • H04N13/194—Transmission of image signals
    • 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
    • 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 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
    • H04N13/20—Image signal generators
    • H04N13/286—Image signal generators having separate monoscopic and stereoscopic modes
    • 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
    • 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
    • H04N13/327—Calibration thereof
    • 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
    • H04N13/332—Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
    • H04N13/337—Displays for viewing with the aid of special glasses or head-mounted displays [HMD] using polarisation multiplexing
    • 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
    • H04N13/332—Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
    • H04N13/341—Displays for viewing with the aid of special glasses or head-mounted displays [HMD] using temporal multiplexing
    • 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
    • H04N13/361—Reproducing mixed stereoscopic images; Reproducing mixed monoscopic and stereoscopic images, e.g. a stereoscopic image overlay window on a monoscopic image background
    • 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
    • H04N13/363—Image reproducers using image projection screens

Abstract

A screen is disclosed for viewing depth of field images.
The screen includes a curved prismatic screen mounted between A flat image and a viewer.
Additional optical elements may be provided to enlarge a viewed image and strengthen depth information. A light hood may be provided to reduce glare and other effects of ambient light.
Further protection from ambient light may be provided by coating the screen with an anti-reflective coating. Image quality for a video image or the like is provided by restructuring the image into smaller image elements. The present invention may find particular application in medical and obstetric imaging such as sonograms, musculo-skeletal imaging, vascular imaging, angiograms, angioplasty, dental probes, catheter probes, car probes, endoscopy, laparoscopy, pelviscopy and arthroscopy.
CA002175200A 1993-11-23 1994-11-22 Technique for depth of field viewing of images with improved clarity and contrast Expired - Fee Related CA2175200C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/155,748 US5400177A (en) 1993-11-23 1993-11-23 Technique for depth of field viewing of images with improved clarity and contrast
US08/155,748 1993-11-23
PCT/US1994/013456 WO1995014953A1 (en) 1993-11-23 1994-11-22 Technique for depth of field viewing of images with improved clarity and contrast

Publications (2)

Publication Number Publication Date
CA2175200A1 true CA2175200A1 (en) 1995-06-01
CA2175200C CA2175200C (en) 2000-04-25

Family

ID=22556646

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002175200A Expired - Fee Related CA2175200C (en) 1993-11-23 1994-11-22 Technique for depth of field viewing of images with improved clarity and contrast

Country Status (10)

Country Link
US (2) US5400177A (en)
EP (1) EP0730752B1 (en)
JP (1) JP3177518B2 (en)
AT (1) ATE172034T1 (en)
AU (2) AU685207B2 (en)
CA (1) CA2175200C (en)
DE (1) DE69413839T2 (en)
DK (1) DK0730752T3 (en)
ES (1) ES2124998T3 (en)
WO (1) WO1995014953A1 (en)

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Also Published As

Publication number Publication date
DE69413839T2 (en) 1999-05-20
ATE172034T1 (en) 1998-10-15
EP0730752B1 (en) 1998-10-07
AU685207B2 (en) 1998-01-15
US5400177A (en) 1995-03-21
AU5215698A (en) 1998-03-19
CA2175200C (en) 2000-04-25
AU1292695A (en) 1995-06-13
US5774260A (en) 1998-06-30
DK0730752T3 (en) 1999-06-21
JPH09505158A (en) 1997-05-20
EP0730752A1 (en) 1996-09-11
ES2124998T3 (en) 1999-02-16
AU701137B2 (en) 1999-01-21
JP3177518B2 (en) 2001-06-18
DE69413839D1 (en) 1998-11-12
WO1995014953A1 (en) 1995-06-01

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