APPARATUS AND METHOD FOR GENERATING FACIAL ANIMATION
First Claim
1. An apparatus for generating facial animation, the apparatus comprising:
- a pre-processing unit for selecting an image frame having a facial region that is most similar to a facial region of one of a plurality of key models of facial characters, from a sequence of image frames, each image frame being divided into a plurality of facial regions; and
a facial animation generation unit for determining a blending weight for each selected facial region of the key models using the selected facial region and for synthesizing facial character shapes on a facial region-by-facial region basis using the determined blending weight for each facial region of each of the key models.
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Abstract
An apparatus and method for generating an animation of a virtual character using video data and a limited number of three-dimensional (3D) key models of a virtual character, are provided. The video data includes a sequence of two-dimensional image frames. The key models are blended together using the calculated weights, and a 3D facial expression most similar to the 2D facial expression included in each image frame may be generated. When the above operations are performed for input video data including a sequence of image frames, a facial animation, which makes facial expressions according to facial expressions included in the video data may be created.
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20 Claims
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1. An apparatus for generating facial animation, the apparatus comprising:
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a pre-processing unit for selecting an image frame having a facial region that is most similar to a facial region of one of a plurality of key models of facial characters, from a sequence of image frames, each image frame being divided into a plurality of facial regions; and a facial animation generation unit for determining a blending weight for each selected facial region of the key models using the selected facial region and for synthesizing facial character shapes on a facial region-by-facial region basis using the determined blending weight for each facial region of each of the key models. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of generating facial animation based on a video, the method comprising:
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selecting an image frame having a facial region that is most similar to a facial region of one of a plurality of key models of facial characters, from a sequence of image frames; determining a blending weight for each facial region of each of the key model using the selected image frame; and generating facial animation by synthesizing facial characters on a facial region-by-facial region basis using the determined blending weight for each facial region of each key model, wherein each of the key models is divided into a plurality of facial regions, and each of the image frames is divided into a plurality of facial regions. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification