Point of view selection in virtual 3d environment

Abstract : In a crowded representation of a virtual three dimensional space defined in terms of voxels, an object of interest will often be occluded by one or more objects of varying densities between the virtual camera defining the user's point of view, and the object of interest. To automatically identify an optimal camera position, an number of candidate positions are considered, for example situated at the vertices of a regular polyhedron centred on the object of interest. For each of these candidate positions, a ray is cast towards the object of interest, and the occlusion for each intervening voxel is determined as the product of that voxel's density, and a density transfer function. The virtual camera position corresponding to the least occluded path is then selected as the new point of view.
Document type :
Patents
Complete list of metadatas

https://hal-enac.archives-ouvertes.fr/hal-01895107
Contributor : Laurence Porte <>
Submitted on : Saturday, October 13, 2018 - 9:57:19 PM
Last modification on : Thursday, May 9, 2019 - 10:06:31 AM

Identifiers

  • HAL Id : hal-01895107, version 1

Collections

ENAC | DEVI | TICE | TEL

Citation

Christophe Hurter. Point of view selection in virtual 3d environment. United States, Patent n° : US20170278300A1. 2017. ⟨hal-01895107⟩

Share

Metrics

Record views

29