Picture encoding device, picture decoding device, and picture communication system
US10123022B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2015 |
| Grant date | Nov 6, 2018 |
| Priority date | — |
| Expiry date | Feb 19, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/597
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a picture encoding device and a picture decoding device, the access to a reference frame memory is suppressed. The picture encoding device is comprised of a first encoder for intra picture encoding, a second encoder for inter picture encoding, and an intermediate buffer. A local decoded picture generated by the first encoder is stored as a reference picture in the intermediate buffer, and the inter picture encoding by the second encoder is performed by referring to the local decoded picture in the intermediate buffer. A picture decoding device is comprised of a first decoder for intra picture decoding, a second decoder for inter picture decoding, and an intermediate buffer. A local decoded picture generated by the first decoder is stored as a reference picture in the intermediate buffer, and the inter picture decoding by the second decoder is performed by referring the local decoded picture in the intermediate buffer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.