BR9909611B1 - mÉtodo e aparelho para detectar caracterÍsticas faciais em uma sequÊncia de quadros de imagem compreendendo uma imagem de um rosto. - Google Patents

mÉtodo e aparelho para detectar caracterÍsticas faciais em uma sequÊncia de quadros de imagem compreendendo uma imagem de um rosto.

Info

Publication number
BR9909611B1
BR9909611B1 BRPI9909611-0A BR9909611A BR9909611B1 BR 9909611 B1 BR9909611 B1 BR 9909611B1 BR 9909611 A BR9909611 A BR 9909611A BR 9909611 B1 BR9909611 B1 BR 9909611B1
Authority
BR
Brazil
Prior art keywords
image
person
facial
features
sensing
Prior art date
Application number
BRPI9909611-0A
Other languages
English (en)
Other versions
BR9909611A (pt
Inventor
Thomas Maurer
Egor Valerievich Elagin
Luciano Pasquale Agostino Nocera
Johannes Bernhard Steffens
Hartmut Neven
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
Priority claimed from US09/188,079 external-priority patent/US6272231B1/en
Application filed filed Critical
Publication of BR9909611A publication Critical patent/BR9909611A/pt
Publication of BR9909611B1 publication Critical patent/BR9909611B1/pt

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/20—Analysis of motion
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/20—Analysis of motion
    • G06T7/246—Analysis of motion using feature-based methods, e.g. the tracking of corners or segments
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/20—Analysis of motion
    • G06T7/262—Analysis of motion using transform domain methods, e.g. Fourier domain methods
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/40—Extraction of image or video features
    • G06V10/42—Global feature extraction by analysis of the whole pattern, e.g. using frequency domain transformations or autocorrelation
    • G06V10/422—Global feature extraction by analysis of the whole pattern, e.g. using frequency domain transformations or autocorrelation for representing the structure of the pattern or shape of an object therefor
    • G06V10/426—Graphical representations
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/40—Extraction of image or video features
    • G06V10/44—Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersections; Connectivity analysis, e.g. of connected components
    • G06V10/443—Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersections; Connectivity analysis, e.g. of connected components by matching or filtering
    • G06V10/449—Biologically inspired filters, e.g. difference of Gaussians [DoG] or Gabor filters
    • 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
    • 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
    • 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
    • G06V40/165—Detection; Localisation; Normalisation using facial parts and geometric relationships
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20048—Transform domain processing
    • G06T2207/20064—Wavelet transform [DWT]
BRPI9909611-0A 1998-04-13 1999-04-12 mÉtodo e aparelho para detectar caracterÍsticas faciais em uma sequÊncia de quadros de imagem compreendendo uma imagem de um rosto. BR9909611B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US8161598P 1998-04-13 1998-04-13
US09/188,079 US6272231B1 (en) 1998-11-06 1998-11-06 Wavelet-based facial motion capture for avatar animation
PCT/US1999/007933 WO1999053443A1 (en) 1998-04-13 1999-04-12 Wavelet-based facial motion capture for avatar animation

Publications (2)

Publication Number Publication Date
BR9909611A BR9909611A (pt) 2000-12-19
BR9909611B1 true BR9909611B1 (pt) 2012-08-07

Family

ID=26765754

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI9909611-0A BR9909611B1 (pt) 1998-04-13 1999-04-12 mÉtodo e aparelho para detectar caracterÍsticas faciais em uma sequÊncia de quadros de imagem compreendendo uma imagem de um rosto.

Country Status (10)

Country Link
US (1) US6580811B2 (pt)
EP (1) EP1072018B1 (pt)
JP (2) JP3970520B2 (pt)
KR (1) KR100530812B1 (pt)
AT (1) ATE248409T1 (pt)
AU (1) AU3639699A (pt)
BR (1) BR9909611B1 (pt)
CA (1) CA2327304A1 (pt)
DE (1) DE69910757T2 (pt)
WO (1) WO1999053443A1 (pt)

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