Method of and device for encoding an HDR image, method of and device for reconstructing an HDR image and non-transitory storage medium
US9554056B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2012 |
| Grant date | Jan 24, 2017 |
| Priority date | — |
| Expiry date | May 26, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/445
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention is made in the field of coding of images of high dynamic range.The invention is based on the concept of Frame Compatible format. The idea is to transport, in a frame, down-sampled LDR content together with additional information allowing reconstructing HDR content from the LDR content.Thus, it is proposed a method of encoding an HDR image of high dynamic range according to claim 1. Said method comprises down-sampling (DWN) an LDR image and additional data, the LDR image providing a lower dynamic range depiction of the HDR image content and the additional data allowing for reconstructing the HDR image from the LDR image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.