Apparatus and method of generating an image signal
US11823323B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 29, 2020 |
| Grant date | Nov 21, 2023 |
| Priority date | — |
| Expiry date | Aug 3, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2210/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image source (407) provides an image divided into segments of different sizes with only a subset of these comprising image data. A metadata generator (409) generates metadata structured in accordance with a tree data structure where each node is linked to a segment of the image. Each node is a branch node linking the parent node to child nodes linked to segments that are subdivisions of the parent node, or a leaf node which has no children. A leaf node is either an unused leaf node linked to a segment for which the first image comprises no image data or a used leaf node linked to a segment for which the first image comprises image data. The metadata indicates whether each node is a branch node, a used leaf node, or an unused leaf node. An image signal generator (405) generates an image signal comprising the image data of the first image and the metadata.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.