CA2218793A1 - Multi-modal system for locating objects in images - Google Patents

Multi-modal system for locating objects in images

Info

Publication number
CA2218793A1
CA2218793A1 CA002218793A CA2218793A CA2218793A1 CA 2218793 A1 CA2218793 A1 CA 2218793A1 CA 002218793 A CA002218793 A CA 002218793A CA 2218793 A CA2218793 A CA 2218793A CA 2218793 A1 CA2218793 A1 CA 2218793A1
Authority
CA
Canada
Prior art keywords
channel
channels
images
locating objects
modal system
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
CA002218793A
Other languages
French (fr)
Other versions
CA2218793C (en
Inventor
Eric Cosatto
Hans Peter Graf
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 CA2218793A1 publication Critical patent/CA2218793A1/en
Application granted granted Critical
Publication of CA2218793C publication Critical patent/CA2218793C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/80—Analysis of captured images to determine intrinsic or extrinsic camera parameters, i.e. camera calibration
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/70—Determining position or orientation of objects or cameras
    • G06T7/73—Determining position or orientation of objects or cameras using feature-based methods
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/16—Human faces, e.g. facial parts, sketches or expressions
    • G06V40/161—Detection; Localisation; Normalisation
    • G06V40/162—Detection; Localisation; Normalisation using pixel segmentation or colour matching
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/16—Human faces, e.g. facial parts, sketches or expressions
    • G06V40/161—Detection; Localisation; Normalisation
    • G06V40/167—Detection; Localisation; Normalisation using comparisons between temporally consecutive images

Abstract

A multi-modal method for locating objects in images wherein a tracking analysis is first performed using a plurality of channels which may comprise a shape channel, a color channel, and a motion channel.
After a predetermined number of frames, intermediate feature representations are obtained from each channel and evaluated for reliability. Based on the evaluation of each channel, one or more channels are selected for additional tracking. The results of all representations are ultimately integrated into a final tracked output. Additionally, any of the channels may be calibrated using initial results obtained from one or more channels.
CA002218793A 1996-11-20 1997-10-20 Multi-modal system for locating objects in images Expired - Fee Related CA2218793C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/752,109 US5864630A (en) 1996-11-20 1996-11-20 Multi-modal method for locating objects in images
US752,109 1996-11-20

Publications (2)

Publication Number Publication Date
CA2218793A1 true CA2218793A1 (en) 1998-05-20
CA2218793C CA2218793C (en) 2002-01-15

Family

ID=25024916

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002218793A Expired - Fee Related CA2218793C (en) 1996-11-20 1997-10-20 Multi-modal system for locating objects in images

Country Status (2)

Country Link
US (1) US5864630A (en)
CA (1) CA2218793C (en)

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Also Published As

Publication number Publication date
CA2218793C (en) 2002-01-15
US5864630A (en) 1999-01-26

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