Method and apparatus for rendering spherical panoramas
US8217956B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 29, 2008 |
| Grant date | Jul 10, 2012 |
| Priority date | — |
| Expiry date | May 28, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T15/04
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Method and apparatus for rendering panoramas under spherical projections. A set of component images and alignment parameters for the images are obtained. A rotation matrix for a component image is decomposed into three rotation matrices. An in-plane rotation of the image is performed to generate a rotated image. Once an in-plane rotation is performed, the rotated image is rendered first in one planar (x or y) dimension (whether columns or rows) to generate an intermediate image, and then the intermediate image is rendered in the other planar dimension to generate an output image. Decimation of the input rows and columns may be performed if necessary, and one-dimensional interpolation may be performed to generate pixel values in the output rows and columns from pixel values in the input rows and columns. The output image may be adjusted on the spherical projection by shifting the bounding box of the output image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.