Automatic 3D Modeling
An automatic 3D modeling system and method are described in which a 3D model may be generated from a picture or another image. For example, a 3D model for a face of a person may be automatically generated. The system and method also permits gestures/behaviors associated with a 3D model to automatically generated so that the gestures/behaviors may be applied to any 3D models.
1 . (canceled)
2 . A method comprising:
determining a first variable indicating a first change of a surface of a first object represented in an image, and a second variable indicating a second change of a vertex associated with the first object; and
animating the second object based on the first and second variables.
3 . The method of claim 2 , wherein:
the first variable comprises a two dimensional variable indicating the first change of the surface of the first object; and
the second variable comprises a three dimensional variable indicating the second change of the vertex associated with the first object.
4 . The method of claim 2 , further comprising:
animating the second object by applying a model comprising the two dimensional variable and the three dimensional variable to the second object.
5 . The method of claim 4 , wherein the model further comprises a third variable indicating a third change in a coloration occurring during a movement of the first object.
6 . The method of claim 2 , further comprising:
determining a scalar field variable representing a mapping between a feature space of a movement of the first object and a model space to enable transformation of the vertex.
7 . The method of claim 6 , wherein the scalar field variable comprises an array having respective entries for a plurality of vertices, the entries comprising respective three-dimensional vectors configured to store data representing changes in scale of the plurality of vertices in the feature space.
8 . The method of claim 7 , wherein the scalar field variable is based on a weighted interpolation of respective positions of the vertex mapped to a second space associated with a polygon in the feature space.
9 . The method of claim 6 , further comprising:
generating the model, wherein generating the model includes generating the feature space and mapping the movement between the feature space and the model space.
10 . A non-transitory computer readable medium having computer instructions stored thereon, the instructions comprising:
determining a first variable indicating a first change of a surface of a first object represented in an image, and a second variable indicating a second change of a vertex associated with the first object; and
animating the second object based on the first and second variables.
11 . The non-transitory computer readable medium of claim 10 , wherein:
the first variable comprises a two dimensional variable indicating the first change of the surface of the first object; and
the second variable comprises a three dimensional variable indicating the second change of the vertex associated with the first object.
12 . The non-transitory computer readable medium of claim 10 , the instructions further comprising:
animating the second object by applying a model comprising the two dimensional variable and the three dimensional variable to the second object.
13 . The non-transitory computer readable medium of claim 12 , wherein the model further comprises a third variable indicating a third change in a coloration occurring during a movement of the first object.
14 . The non-transitory computer readable medium of claim 12 , the instructions further comprising:
determining a scalar field variable representing a mapping between a feature space of a movement of the first object and a model space to enable transformation of the vertex.
15 . The non-transitory computer readable medium of claim 14 , wherein the scalar field variable comprises an array having respective entries for a plurality of vertices, the entries comprising respective three-dimensional vectors configured to store data representing changes in scale of the plurality of vertices in the feature space.
16 . The non-transitory computer readable medium of claim 15 , wherein the scalar field variable is based on a weighted interpolation of respective positions of the vertex mapped to a second space associated with a polygon in the feature space.
17 . The non-transitory computer readable medium of claim 14 , further comprising:
generating the model, wherein generating the model includes generating the feature space and mapping the movement between the feature space and the model space.
18 . An apparatus comprising:
means for determining a first variable indicating a first change of a surface of a first object represented in an image, and a second variable indicating a second change of a vertex associated with the first object; and
means for animating the second object based on the first and second variables.
19 . The apparatus of claim 18 , wherein:
the first variable comprises a two dimensional variable indicating the first change of the surface of the first object; and
the second variable comprises a three dimensional variable indicating the second change of the vertex associated with the first object.
20 . The apparatus of claim 18 , further comprising:
means for animating the second object by applying a model comprising the two dimensional variable and the three dimensional variable to the second object.