Method and image processing unit for forming a video stream
US11102508B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2018 |
| Grant date | Aug 24, 2021 |
| Priority date | — |
| Expiry date | May 19, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/172
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and an apparatus for forming a video stream based on images of a scene captured by a camera. The method comprises: encoding image frames based on images captured by the camera, forming an encoded portion; determining a length of motion for a sample image frame, the length of motion being indicative of the amount of relative motion between the camera and the scene in the sample image frame relative a temporally preceding image frame; setting a motion length threshold based on a motion vector search range of the encoder; comparing the determined length of motion with the set motion length threshold; based on the outcome of the comparison, adjusting a chosen temporal frame distance of at least an adjustment portion (PA) of the video stream, wherein the adjustment portion is comprised in the encoded portion or in a temporally later encoded portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.