Method and apparatus for transmitting and receiving 3D video pictures
US4905081A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 6, 1987 |
| Grant date | Feb 27, 1990 |
| Priority date | — |
| Expiry date | Nov 6, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2013/0085
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Transmission of video pictures containing depth information is achieved by taking video signals from two sources, showing different representations of the same scene, and correlating them to determine a plurality of peak correlation values which correspond to vectors representing depth information. The first video signal is divided into elementary areas and each block is tested, pixel by pixel, with each vector to see which vector gives the best fit in deriving the second video signal from the first. The vectors which give the best fit are then assigned to their respective areas of the picture and constitute difference information. The first video signal and the assigned vectors are then transmitted in parallel. The first video signal can be received as a monoscopic picture, or alternatively the vectors can be used to modify the first signal to form a display containing depth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.