Method and apparatus for varying focus in a scene
US6741251B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 16, 2001 |
| Grant date | May 25, 2004 |
| Priority date | — |
| Expiry date | Jul 5, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T5/50
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of varying focus in a scene. Specifically, one embodiment of the present invention discloses a method for modeling a scene using a parametric texture map (PTM) under varying focus conditions of one or more dimensions: e.g., focus depth and depth of field. A dataset of photographs is obtained under separate focus conditions. Approximation of the dataset creates an associated PTM representation that is capable of generating scenes of the photographic scene under varying focus conditions anywhere within the range of focus conditions specified by the initial data set. In addition, extrapolation yields results outside the range of focus conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.