CA2178358A1 - Panoramic Projection Apparatus - Google Patents

Panoramic Projection Apparatus

Info

Publication number
CA2178358A1
CA2178358A1 CA2178358A CA2178358A CA2178358A1 CA 2178358 A1 CA2178358 A1 CA 2178358A1 CA 2178358 A CA2178358 A CA 2178358A CA 2178358 A CA2178358 A CA 2178358A CA 2178358 A1 CA2178358 A1 CA 2178358A1
Authority
CA
Canada
Prior art keywords
image
panoramic
composite
projection apparatus
optical center
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
CA2178358A
Other languages
French (fr)
Other versions
CA2178358C (en
Inventor
Vishvjit Singh Nalwa
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.)
AT&T Corp
Original Assignee
AT&T IPM Corp
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 AT&T IPM Corp filed Critical AT&T IPM Corp
Publication of CA2178358A1 publication Critical patent/CA2178358A1/en
Application granted granted Critical
Publication of CA2178358C publication Critical patent/CA2178358C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B37/00—Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe
    • G03B37/04—Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe with cameras or projectors providing touching or overlapping fields of view
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/15—Conference systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17309—Transmission or handling of upstream communications
    • H04N7/17318—Direct or substantially direct transmission and handling of requests

Abstract

An omnidirectional or panoramic projector comprise several image producing devices with a common virtual optical center. The images produced by devices such as LCD or film are arranged to form a composite or panoramic image such as a continuous 360 degree image when taken as a whole. The user can view the 360 degree image with little or no distortion at the boundaries of the image segments forming the composite image since the image producing devices have the same or nearly the same virtual optical center.
CA002178358A 1995-06-30 1996-06-06 Panoramic projection apparatus Expired - Fee Related CA2178358C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/497,341 US5539483A (en) 1995-06-30 1995-06-30 Panoramic projection apparatus
US497,341 1995-06-30

Publications (2)

Publication Number Publication Date
CA2178358A1 true CA2178358A1 (en) 1996-12-31
CA2178358C CA2178358C (en) 1999-01-19

Family

ID=23976470

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002178358A Expired - Fee Related CA2178358C (en) 1995-06-30 1996-06-06 Panoramic projection apparatus

Country Status (2)

Country Link
US (1) US5539483A (en)
CA (1) CA2178358C (en)

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Also Published As

Publication number Publication date
CA2178358C (en) 1999-01-19
US5539483A (en) 1996-07-23

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Effective date: 20120606