Method for emulating defocus of sharp rendered images
US11328437B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 30, 2020 |
| Grant date | May 10, 2022 |
| Priority date | — |
| Expiry date | Oct 30, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2210/62
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods and systems for defocusing a rendered computer-generated image are presented. Pixel values for a pixel array are determined from a scene description. A blur amount for each pixel is determined based on a lens function representing a lens shape and/or effect. A blur amount and blur transparency value are determined for the pixel based on the lens function and pixel depth. A convolution range comprising pixels adjacent to the pixel is determined based on the blur amount. A blend color value is determined for the pixel based on the color value of the pixel, color values of pixels in the convolution range, and the blur transparency value. The blend color value is scaled based on the blend color value and a modified pixel color value is determined from scaled blend color values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.