Patent ReferencesPattern recognition device Apparatus and method for recognizing facial expressions and facial gestures in a sequence of images Model based image editing and correction Method and system for capturing and representing 3D geometry, color and shading of facial expressions and other animated objects Face recognition from video images Method and apparatus for aligning and comparing images of the face and body from different imagers Method for generating a personalized 3-D face model Patent #: 6664956 InventorsAssigneeApplicationNo. 09754938 filed on 01/04/2001US Classes:382/118, Using a facial characteristic382/154, 3-D or stereo imaging analysis382/236, Interframe coding (e.g., difference or motion detection)345/419Three-dimensionExaminersPrimary: Boudreau, Leo H.Assistant: Sherali, Ishrat Attorney, Agent or FirmInternational ClassG06K 900AbstractDescribed herein is a technique for creating a 3D face model using images obtained from an inexpensive camera associated with a general-purpose computer. Two still images of the user are captured, and two video sequences. The user is asked to identify five facial features, which are used to calculate a mask and to perform fitting operations. Based on a comparison of the still images, deformation vectors are applied to a neutral face model to create the 3D model. The video sequences are used to create a texture map. The process of creating the texture map references the previously obtained 3D model to determine poses of the sequential video images.Other References
Field of SearchUsing a facial characteristicPersonnel identification (e.g., biometrics) APPLICATIONS 3-D or stereo imaging analysis Feature extraction IMAGE TRANSFORMATION OR PREPROCESSING To position or translate an image To rotate an image Rotation of image is limited to 90 degrees, 180 degrees, or 270 degrees Using a combination of features (e.g., signature and fingerprint) Shape and form analysis Using a characteristic of the eye COLOR IMAGE PROCESSING Image segmentation using color Pattern recognition or classification using color Motion or velocity measuring Target tracking or detecting Mapping 2-D image onto a 3-D surface Interframe coding (e.g., difference or motion detection) Including details of decompression IMAGE COMPRESSION OR CODING Three-dimension Solid modelling Tessellation Shape generating Animation COMPUTER GRAPHICS PROCESSING Motion planning or control Motion image conferencing | |