Apparatus and method for scalable encoding
US8774271B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2009 |
| Grant date | Jul 8, 2014 |
| Priority date | — |
| Expiry date | May 7, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/51
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A scalable encoding apparatus that determines a motion mode of an enhanced layer using motion information of a base layer in a scalable video coding having a structure of the base layer and the enhanced layer. The scalable encoding apparatus includes: a second image detector that detects a current image frame from images input to the enhanced layer; a second motion detector that assigns weight to motion modes of a macro block and macro blocks adjacent to the macro block of the current image frame based on motion mode information and motion vector information obtained from the current image frame of the BASE LAYER, determines motion modes for the current image frame of the enhanced layer by applying the weight and comparing a sum of calculated mode values and a plurality of thresholds, and detects the corresponding motions; and a second motion compensator that compensates the motions detected in the second motion detector to compress the current image frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.