Image transforming device for changing frame frequencies of a video image
US5337153A · kind A · utility
10Cited by
11References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 28, 1992 |
| Grant date | Aug 9, 1994 |
| Priority date | — |
| Expiry date | Jan 28, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/60
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image transforming device transforms images by transforming video signals into a spatial frequency range, by frame-interpolating the transformed signals in the spatial frequency range and by reversely transforming such signals. In such a device, a portion moving isolated in a frame can be frame-interpolated in such a manner that the isolated motion is dispersed over the entire frame. Thus, even when a frame contains an isolated moving portion, the device can provide a natural image, effectively avoiding degradation of image quality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.