Title:
IMAGE PICKUP DEVICE WITH HORIZONTAL LINE INTERPOLATING FUNCTION
Document Type and Number:
Japanese Patent JP3134514
Kind Code:
B2
Abstract:
PURPOSE: To reduce the deterioration in the vertical response characteristic of frequency cuased by the interpolation processing by changing each interpola tion coefficient when the horizontal lines of three chrominance signals of differ ent phases are interpolated.
CONSTITUTION: The R, G and B output signals received from a solid state image pickup element part 101 are turned into the digital signals through the analog signal processing and the A/D conversion processing. These digital signals undergo the RGB signal processing through a digital processing circuit 106 and are inputted to a field memory circuit 107. These input signals undergo an interpolating operation through a field memory control circuit 108, an electronic zoom circuit 109, and electronic zoom control circuit 110. That is, a drive control circuit 103 controls an image pickup element driving circuit 102 to set the vertical phases of three chroma signals obtained form the part 101 at different levels. Thus it is possible to reduce the deterioration of the vertical frequencey response characteristic of an output line. The interpolation processing is applied to the chrominance signals C1, C2 and C3 with different coefficeints respectively.
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Inventors:
Takashi Sakaguchi
Hiroya Kusaka
Masaaki Nakayama
Hiroya Kusaka
Masaaki Nakayama
Application Number:
JP19509792A
Publication Date:
February 13, 2001
Filing Date:
July 22, 1992
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
H04N9/07; H04N9/09; (IPC1-7): H04N9/09
Domestic Patent References:
| JP1261086A | ||||
| JP5191811A |
Attorney, Agent or Firm:
Fumio Iwahashi (2 others)
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