Title:
【発明の名称】映像信号処理装置及びプログラムを記憶した記憶媒体
Document Type and Number:
Japanese Patent JP3114717
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To remove a DC error at every pixel, which is caused because the operations of correcting circuits for correcting the white balance of an amplitude in plural color light signals which are obtained from a two-dimensional solid- state image pickup element become respectively different at every output signal corresponding to the plural color lights. SOLUTION: The plural color light signals outputted from the color solid-state image pickup element 1 having a color filter array are corrected in white balance at every pixel for each color light through the use of n white balance correcting circuits 3-5 and, then, supplied to a correlative duplex sampling circuit 7 for removing the noise of the output signals of the element 1. The circuit 7 obtains a difference between reference potential in a signal whose white balance is corrected with signal potential, removes the DC error at every pixel and also removes noise.
Inventors:
Takanori Tanaka
Application Number:
JP2060399A
Publication Date:
December 04, 2000
Filing Date:
January 28, 1999
Export Citation:
Assignee:
NEC
International Classes:
H04N9/04; H04N9/07; H04N9/73; (IPC1-7): H04N9/04; H04N9/07; H04N9/73
Domestic Patent References:
| JP4271593A |
Attorney, Agent or Firm:
Takao Maruyama