Method and apparatus for detecting motion between odd and even video fields
US6633612B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 13, 2000 |
| Grant date | Oct 14, 2003 |
| Priority date | — |
| Expiry date | Mar 19, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/145
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for measuring motion at a horizontal and vertical position between video fields of opposite parity comprising the steps of measuring the signal values of at least two vertically adjacent pixels from a video field of one parity and at least two vertically adjacent pixels from a video field of the opposite parity such that when taken together, the pixels represent contiguous samples of an image at said horizontal and vertical position, and determining whether the signal value of any of the pixels lies between the signal values of adjacent pixels in the field of opposite parity and in response outputting a zero motion value, otherwise, outputting a motion value equal to the lowest absolute difference between any of the pixels and its closest adjacent pixel in the field of opposite parity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.