Method and device for image and video transmission over low-bandwidth and high-latency transmission channels
US9986427B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 23, 2014 |
| Grant date | May 29, 2018 |
| Priority date | — |
| Expiry date | Jun 23, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/64
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for transmission of images and/or video over bandwidth limited transmission channels having varying available bandwidth, which uses a classification algorithm to decompose the images and/or video to be transmitted into multiple spatial areas, each area having a specific image type; detecting the image type of each of those areas; and separately selecting for each of those areas an image and/or video encoding algorithm having a compression ratio. The classification algorithm is used to prioritize each of the areas, increase the compression ratio of the image and/or video encoding algorithm dedicated to spatial areas having lower priority in case of decreasing bandwidth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.