Photographic method at time of self-photography, and image sensing apparatus thereof
US6943839B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 1998 |
| Grant date | Sep 13, 2005 |
| Priority date | — |
| Expiry date | May 11, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/222
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image sensing apparatus provides optimum video not only during ordinary shooting but also when the photographer faces the camera to shoot video of him/herself. When the photographer performs such self-photography, the subject (i.e., the photographer) is situated at the center of the scene. Accordingly, in order to eliminate the effects of a peripheral spot-lighted subject or the like, a photometry area used for automatic exposure control or automatic focusing is narrowed to a central portion more at the time of self-photography than at the time of ordinary photography. This provides video having proper exposure without influence from peripheral brightness such as a spotlight. Further, when self-photography is sensed, the magnification of a sensed image by a zoom lens is controlled to the vicinity of a wide-angle limit and the distance to the subject, which is controlled by a focusing lens, is controlled to a short distance in front of the image sensing apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.