Multi-standard video image capture device using a single CMOS image sensor
US7379105B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2002 |
| Grant date | May 27, 2008 |
| Priority date | — |
| Expiry date | Aug 1, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/76
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video image capture device includes an image sensor including an two-dimensional array of pixel elements overlaid with a pattern of color filters and having a vertical resolution different from the vertical resolutions specified for a group of video formats, a frame buffer for storing digital pixel data outputted by the image sensor, and an interpolator module for interpolating the digital pixel data to generate video data in at least three color planes and having a vertical resolution corresponding to a video format selected from the group of video formats. In one embodiment, the group of video formats includes the NTSC and PAL video formats. The vertical resolution of the image sensor has a value between the vertical resolution of the NTSC and PAL video formats. The interpolator module performs interpolation using a set of combined filters, each of the combined filters incorporating a demosaic filter and a scaling filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.