3D environment labelling
AssigneeU.S. Philips Corporation
InventorsDale R. Heron, Christopher Thorne
Life of this patent
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Abstract
Objects of a three dimensional (3D) virtual world that are represented on a two dimensional (2D) image plane are provided with labels which are generated in the 2D image plane itself. The labels are in spatial registration with the object as represented on the 2D image plane. The generation of the labels in the 2D image plane avoids problems relating to perspective and aliasing which can occur when labels are provided in the virtual world itself and are rendered from the 3D virtual world.
Claims16
A method of providing labels for objects defined in a three-dimensional (3D) virtual environment, the objects being presented on a two dimensional (2D) image plane through projecting those objects onto the 2D image plane in a rendering process, to generate an image that is representative of the 3D environment as observed from a viewpoint, said method comprising the steps of:
- establishing a location for an object as presented in the 2D image plane and assigning an object position reference point relative thereto;
- and
- generating a two dimensional (2D) label image which is associated with the object position reference point and movable therewith in two dimensions.
A data processing apparatus configured to generate labels for display with objects defined in a three-dimensional (3D) virtual environment, the objects being presentable on a two dimensional (2D) image plane through projecting those objects onto the 2D image plane in a rendering process, to produce an image that is representative of the 3D environment as observed from a viewpoint, the apparatus including:
- object location means for establishing the location of an object as presented in the 2D image plane and assigning an object position reference point relative thereto;
- and
- generating means for generating a two dimensional (2D) label image which is associated with the object position reference point and for moving the label image therewith in two dimensions.
Dependencies are inferred from the claim text.