CA2157613A1 - Video Conference System and Method of Providing Parallax Correction and a Sense of Presence - Google Patents

Video Conference System and Method of Providing Parallax Correction and a Sense of Presence

Info

Publication number
CA2157613A1
CA2157613A1 CA2157613A CA2157613A CA2157613A1 CA 2157613 A1 CA2157613 A1 CA 2157613A1 CA 2157613 A CA2157613 A CA 2157613A CA 2157613 A CA2157613 A CA 2157613A CA 2157613 A1 CA2157613 A1 CA 2157613A1
Authority
CA
Canada
Prior art keywords
image
video
conferee
sense
frames
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
CA2157613A
Other languages
French (fr)
Other versions
CA2157613C (en
Inventor
Russell Lennart Andersson
Tsuhan Chen
Barin Geoffry Haskell
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 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 Corp filed Critical AT&T Corp
Publication of CA2157613A1 publication Critical patent/CA2157613A1/en
Application granted granted Critical
Publication of CA2157613C publication Critical patent/CA2157613C/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
    • 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
    • H04N7/14—Systems for two-way working
    • H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
    • H04N7/142—Constructional details of the terminal equipment, e.g. arrangements of the camera and the display
    • H04N7/144—Constructional details of the terminal equipment, e.g. arrangements of the camera and the display camera and display on the same optical axis, e.g. optically multiplexing the camera and display for eye to eye contact

Abstract

A video conference system provides eye contact and a sense of presence to a plurality of conference participants (A, B) located in respective remotely-sited conference rooms (26, 28). Each conference room contains at least one video telephone or communications device that includes a video camera (30, 32) for generating video signals indicative of a sequence of local conferee image frames, and an image receiver (22, 24) for displaying image frames of at least one remote conferee. The image receiver, the video camera, and the eyes of the local conferee define a parallax angle (?). The video conference system further includes a frame generating system (34), responsive to the video signals, for analyzing local conferee image frames and generating a corresponding sequence of parallax-compensated frames. A signal indicative of each respective sequence of parallax-compensated frames is transmitted to a corresponding image receiver, whereby apparent eye contact is provided between each local conferee and a displayed image of a corresponding remote conferee. Where more than three conferees are involved, each input image frame is additionally analyzed for head position and the head position is reoriented by the frame generating system as necessary to provide a sense of presence.
CA002157613A 1994-10-25 1995-09-06 Video conference system and method of providing parallax correction and a sense of presence Expired - Fee Related CA2157613C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/328,640 US5500671A (en) 1994-10-25 1994-10-25 Video conference system and method of providing parallax correction and a sense of presence
US328,640 1994-10-25

Publications (2)

Publication Number Publication Date
CA2157613A1 true CA2157613A1 (en) 1996-04-26
CA2157613C CA2157613C (en) 1999-09-21

Family

ID=23281793

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002157613A Expired - Fee Related CA2157613C (en) 1994-10-25 1995-09-06 Video conference system and method of providing parallax correction and a sense of presence

Country Status (6)

Country Link
US (1) US5500671A (en)
JP (1) JPH08237629A (en)
CA (1) CA2157613C (en)
DE (1) DE19539048B4 (en)
GB (1) GB2294605B (en)
TW (1) TW297985B (en)

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US5500671A (en) 1996-03-19
CA2157613C (en) 1999-09-21

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