Title:
HORIZONTAL PROFILE SIGNAL GENERATING CIRCUIT FOR SINGLE- PLATE TYPE COLOR CAMERA
Document Type and Number:
Japanese Patent JP3540758
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a horizontal profile signal generating circuit for a single CCD color camera capable of providing a high-resolution brightness signal at each of achromatic color part and chromatic color part.
SOLUTION: There are provided a first horizontal profile signal generating circuit provided after a first horizontal low-pass filter, a second horizontal profile signal generating circuit provided after a second horizontal low-pass filter, and a selecting circuit which adaptively selects for outputting a first horizontal profile signal generated by the first horizontal profile signal generating circuit and a second horizontal profile signal, generated by the second horizontal profile signal generating circuit based on the color saturation information for each prescribed region calculated based on a color-difference signal. Here, the first horizontal low-pas filter comprises such characteristics as a high-frequency component is allowed to pass, with the second low-pass filter comprising no such characteristics.
Inventors:
Tetsuo Mise
Yukio Mori
Seiji Okada
Ryuichiro Tominaga
Masahiro Seto
Yukio Mori
Seiji Okada
Ryuichiro Tominaga
Masahiro Seto
Application Number:
JP2001083407A
Publication Date:
July 07, 2004
Filing Date:
March 22, 2001
Export Citation:
Assignee:
Sanyo Electric Co., Ltd.
International Classes:
H04N9/07; H04N5/225; H04N9/04; H04N9/64; H04N9/68; (IPC1-7): H04N9/07
Domestic Patent References:
| JP2288574A | ||||
| JP2288576A | ||||
| JP10023439A |
Attorney, Agent or Firm:
Hideyuki Kayama