Claims
- 1. A horizontal line interpolation circuit comprising:
- a gain control amplifier connected to a signal processing circuit for amplifying and processing an input image signal;
- an interpolation circuit for obtaining an output image signal by performing interpolation processing for horizontal lines of an output signal of the signal processing circuit; and
- a noise reduction circuit for reducing noise of the output image signal of the interpolation circuit in accordance with at least an amplification degree of the gain control amplifier.
- 2. A horizontal line interpolation circuit comprising:
- a gain control amplifier connected to a signal processing circuit for amplifying and processing an input image signal;
- an interpolation circuit for obtaining an output image signal by performing interpolation processing for horizontal lines of an output signal of the signal processing circuit; and
- a noise reduction circuit for reducing noise of the output image signal of the interpolation circuit in accordance with both an amplification degree of the gain control amplifier and an interpolation coefficient of the interpolation processing.
- 3. An image pickup apparatus comprising:
- a gain control amplifier connected to a signal processing circuit for amplifying and processing an output signal of an image sensor;
- an interpolation circuit for performing interpolation processing for horizontal lines of an output signal of the signal processing circuit; and
- a noise reduction circuit for reducing noise of an output signal of the interpolation circuit in accordance with at least an amplification degree of the gain control amplifier.
- 4. An image pickup apparatus comprising:
- a gain control amplifier for amplifying an output signal of an image sensor;
- a signal processing circuit for processing an output signal of the gain control amplifier;
- an interpolation circuit for performing interpolation processing for horizontal lines of an output signal of the signal processing circuit; and
- a noise reduction circuit for reducing noise of the output signal of the interpolation circuit in accordance with both an amplification degree of the gain control amplifier and an interpolation coefficient of the interpolation processing.
Priority Claims (4)
Number |
Date |
Country |
Kind |
2-258002 |
Sep 1990 |
JPX |
|
2-258003 |
Sep 1990 |
JPX |
|
2-285004 |
Oct 1990 |
JPX |
|
3-064476 |
Mar 1991 |
JPX |
|
Parent Case Info
This is a Rule 60 divisional application of Ser. No. 07/765,036, filed Sep. 24, 1991, now U.S. Pat. No. 5,268,758.
US Referenced Citations (6)
Foreign Referenced Citations (3)
Number |
Date |
Country |
0136770A1 |
Apr 1985 |
EPX |
0225029A2 |
Jun 1987 |
EPX |
0367418A2 |
May 1990 |
EPX |
Divisions (1)
|
Number |
Date |
Country |
Parent |
765036 |
Sep 1991 |
|