Video camera with electronic picture stabilizer
US5909242A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 1996 |
| Grant date | Jun 1, 1999 |
| Priority date | — |
| Expiry date | Mar 6, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/145
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video camera (10) includes a microcomputer (26) which determines whether each of detection areas defined within an image field (44) is valid or invalid. If there is a valid detection area, luminance addition data and color addition data are evaluated by an addition data generating circuit (46) for each of addition regions of 64, for example, which are defined by dividing the image field (44). Differences of the addition data between a given addition region and a left adjacent addition region in a horizontal direction and an upper adjacent addition region in a vertical direction are evaluated, and the differences are compared with predetermined values. If comparisons satisfy predetermined conditions, a count value is incremented. On the basis of a total count value of the horizontal direction and a total count value of the vertical direction, it is determined whether or not an object is an object having repeated pattern, and a whole motion vector V.sub.n is evaluated by methods being different from each other according to a determination result. Then, an integration vector S.sub.n is evaluated according to a status of the video camera, whereby a blurring of an image due to an unin…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.