Image processing apparatus and on-vehicle camera apparatus
US8854421B2 · kind B2 · utility
35Cited by
4References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 10, 2009 |
| Grant date | Oct 7, 2014 |
| Priority date | — |
| Expiry date | Mar 9, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/58
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image processing apparatus includes a line buffer, an FIR filter serving as an edge enhancement filter that enhances high-frequency components of an image, and an IIR filter serving as a low-pass filter that reduces noise. The same line buffer is used by both the FIR filter and the IIR filter. According to a switching signal, switches enable the FIR filter and disable the IIR filter for a relatively low noise level while the switches enable IIR filter and disable the FIR filter for a relatively high noise level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.