US 8,027,523 B2Granted

Image processing apparatus, image processing method, and program

AssigneeSony Corporation

InventorsYun Sun, Tamaki Kojima, Tomohiko Gotoh, Makoto Murata, Masatomo Kurata

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Abstract

An image processing apparatus includes a face detector detecting face images from still-image frames successively extracted from a moving-image stream in accordance with image information items regarding the still-image frames, a face-feature-value calculation unit calculating face feature values of the face images in accordance with image information items regarding the face images, an identity determination unit determining whether a first face image in a current frame and a second face image in a previous frame represent an identical person in accordance with at least face feature values of the first and second face images, and a merging processor which stores one of the first and second face images when the first face image and the second face image represent an identical person, and which stores the first and second face images when the first face image and the second face image do not represent an identical person.

Claims20

Dependent claims

An image processing apparatus comprising:

a face detector configured to detect face images included in still-image frames successively extracted from a moving-image stream in accordance with image information items regarding the still-image frames;
a face-feature-value calculation unit configured to calculate face feature values of the face images in accordance with image information items regarding the face images detected by the face detector;
an identity determination unit configured to determine whether a first face image which is included in a current frame and which is detected by the face detector and a second face image which is included in a previous frame and which has been detected and stored by the face detector represent an identical person in accordance with at least face feature values of the first and second face images calculated by the face- feature-value calculation unit;
and
a merging processor configured to store only one of the first and second face images when the identity determination unit determined that the first face image and the second face image represent an identical person, and to store both the first and second face images when the identity determination unit determined that the first face image and the second face image do not represent an identical person.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/484,643Filed 15 Jun 2009
Priority: JP P2008-15978218 Jun 2008
Published: US 2009/0316962 A124 Dec 2009
Granted: 27 Sep 2011
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

G06V 40/172
Human faces, e.g. facial parts, sketches or expressions: classification, e.g. identification
G06V 40/165
Detection; Localisation; Normalisation: using facial parts and geometric relationships
G06V 40/171
Feature extraction; Face representation: local features and components; Facial parts ; Occluding parts, e.g. glasses; Geometrical relationships
G06V 40/173
Classification, e.g. identification: face re-identification, e.g. recognising unknown faces across different face tracks