Method and device for modifying a zone in successive images
US5353392A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 1992 |
| Grant date | Oct 4, 1994 |
| Priority date | — |
| Expiry date | Jul 20, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S345/96
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The process makes it possible to modify the content of a sequence of images which can be represented as a pixel matrix. For that a non-deformable target zone to be replaced in the images is identified and is characterized, both in position and in dimensions, by reference to marks located close to each other and having an unchanging geometrical relation with the target zone in each image. The position, with respect to the marks, to be assigned to a model or pattern which can be superimposed on the target zone, stored in digital form, is determined. For each particular image of a same shot the geometrical transformation to be carried out on the model so that it corresponds to variations in the appearance of the target zone in all the successive images in the same shot is determined automatically by a correlation based on the marks. Last the pixels representative of the model are substituted for the pixels representative of the target zone in the image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.