08055029 is referenced by 35 patents and cites 437 patents.

An image processing apparatus for tracking faces in an image stream iteratively receives an acquired image from the image stream including one or more face regions. The acquired image is sub-sampled at a specified resolution to provide a sub-sampled image. An integral image is then calculated for a least a portion of the sub-sampled image. Fixed size face detection is applied to at least a portion of the integral image to provide a set of candidate face regions. Responsive to the set of candidate face regions produced and any previously detected candidate face regions, the resolution is adjusted for sub-sampling a subsequent acquired image.

Title
Real-time face tracking in a digital image acquisition device
Application Number
12/63089
Publication Number
8055029 (B2)
Application Date
June 18, 2007
Publication Date
November 8, 2011
Inventor
Alexandru Drimbarean
Galway
IE
Petronel Bigioi
Galway
IE
Eran Steinberg
San Francisco
CA, US
Peter Corcoran
Claregalway
IE
Stefan Petrescu
Buchaest
RO
Agent
Andrew V Smith
Assignee
DigitalOptics Corporation Europe
IE
IPC
G06K 9/62
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