Relightable texture for use in rendering an image


Ontology type: sgo:Patent     


Patent Info

DATE

2016-08-16T00:00

AUTHORS

IMBER JAMES , HILTON ADRIAN

ABSTRACT

A model of a scene of an image (e.g. a frame of a video sequence) is generated from one or more views of the scene captured from one or more different camera viewpoints. An initial texture for applying to the model is derived from the one or more views of the scene. The initial texture is separated into a lighting estimate and a color estimate, which may be orthogonal and which may be processed independently. The lighting estimate is filtered with a high-pass filter to thereby determine shadow regions of the scene which are regions of detailed shadow which are likely to be caused by ambient occlusion in the scene and which are therefore retained when the texture is relit for rendering the image. A shadow-detail estimate (or “dark map”) is provided which indicates one or more shadow regions of the texture which are to remain in shadow when the image is rendered. More... »

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