Generating a depth map from a two-dimensional source image for stereoscopic and multiview imaging
US8384763B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2006 |
| Grant date | Feb 26, 2013 |
| Priority date | — |
| Expiry date | Dec 4, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20228
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Depth maps are generated from a monoscopic source images and asymmetrically smoothed to a near-saturation level. Each depth map contains depth values focused on edges of local regions in the source image. Each edge is defined by a predetermined image parameter having an estimated value exceeding a predefined threshold. The depth values are based on the corresponding estimated values of the image parameter. The depth map is used to process the source image by a depth image based rendering algorithm to create at least one deviated image, which forms with the source image a set of monoscopic images. At least one stereoscopic image pair is selected from such a set for use in generating different viewpoints for multiview and stereoscopic purposes, including still and moving images.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.