Appearance modelling
OwnerCharles Stephen Wiles, Mark Jonathan Williams +1inventors
InventorsCharles Stephen Wiles, Mark Jonathan Williams, Rhys Andrew Newman
Life of this patent
Estimating the term…
Abstract
A parametric model is provided for modelling the appearance of objects, such as human faces. The model can model both the shape and texture of the object and includes high resolution data which can be used to render high resolution versions of the object from a set of input parameters. In one embodiment, this high resolution texture information is obtained from high resolution texture information derived from a set of training objects.
Claims48
A parametric model for modelling the shape and texture of an object, the model comprising:
- data defining a function which relates a set of input parameters to a set of locations which identify the relative positions of a plurality of predetermined points on the object and to a set of texture values which identify the texture of the object around the predetermined points;
- characterised by data defining high resolution texture information for the object for combination with the texture values obtained for a current set of input parameters, to generate a high resolution representation of the object from the input parameters.
A model according to any preceding claim, wherein said function linearly relates the input parameters to the set of locations and texture values.
A model according to any preceding claim, wherein said object is a deformable object.
A model according to any preceding claim, wherein said high resolution texture information is obtained from training data derived from a set of training objects.
A parametric model for modelling the shape of an object, the model comprising:
- data defining a function which relates a set of input parameters to a set of locations which identify the relative positions of a plurality of predetermined points on the object;
- characterised by data defining high resolution shape information for the object for combination with the locations obtained for a current set of input parameters, to generate a high resolution representation of the object from the input parameters.
A method of generating appearance data representative of the appearance of an object, the method comprising the steps of:
- (i) storing data defining a parametric model which relates a set of appearance parameters to a set of locations which identify the relative positions of a plurality of predetermined points on the object and to a set of texture values which identify the texture of the object around the predetermined point;
- (ii) storing data defining high resolution texture information for the object for combination with the texture values obtained for a current set of appearance parameters, to generate a high resolution representation of the object from the appearance parameters;
- (iii) receiving a set of appearance parameters;
- (iv) using said stored parametric model to generate said set of locations and said set of texture values for the received set of appearance parameters;
- and
- (v) combining said texture values with said data defining high resolution texture information to generate a high resolution representation of the object from the appearance parameters.
A method of generating appearance data representative of the appearance of an object, the method comprising the steps of:
- (i) storing data defining a parametric model which relates a set of appearance parameters to a set of locations which identify the relative positions of a plurality of predetermined points on the object;
- (ii) storing data defining high resolution shape information for the object for combination with the locations obtained for a current set of appearance parameters, to generate a high resolution representation of the object from the appearance parameters;
- (iii) receiving a set of appearance parameters;
- (iv) using the stored parametric model to generate said set of locations for the received set of appearance parameters;
- and
- (v) combining said locations with said data defining high resolution shape information to generate a high resolution representation of the object from the appearance parameters.
An apparatus for generating appearance data representative of the appearance of an object, the apparatus comprising:
- means for storing data defining a parametric model which relates a set of appearance parameters to a set of locations which identify the relative positions of a plurality of predetermined points on the object and to a set of texture values which identify the texture of the object around the predetermined point;
- means for storing data defining high resolution texture information for the object for combination with the texture values obtained for a current set of appearance parameters, to generate a high resolution representation of the object from the appearance parameters;
- means for receiving a set of appearance parameters;
- means for generating said set of locations and said set of texture values for the received set of appearance parameters using said stored parametric model;
- and
- means for combining said texture values with said data defining high resolution texture information to generate a high resolution representation of the object from the appearance parameters.
An apparatus for generating appearance data representative of the appearance of an object, the apparatus comprising:
- means for storing data defining a parametric model which relates a set of appearance parameters to a set of locations which identify the relative positions of a plurality of predetermined points on the object;
- means for storing data defining high resolution shape information for the object for combination with the locations obtained for a current set of appearance parameters, to generate a high resolution representation of the object from the appearance parameters;
- means for receiving a set of appearance parameters;
- means for generating said set of locations for the received set of appearance parameters using said stored parametric model;
- and
- means for combining said locations with said data defining high resolution shape information to generate a high resolution representation of the object from the appearance parameters.
Dependencies are inferred from the claim text.