Title:
ノイズ低減装置及びその制御方法、撮像装置
Document Type and Number:
Japanese Patent JP5235441
Kind Code:
B2
Abstract:
A noise reduction apparatus, in which an occurrence of overcorrection attributed to an erroneous detection is prevented. A storage unit stores a pseudo noise signal generating characteristic. A pseudo noise generating unit sets a signal which may become a source of a noise superimposed on a video signal as a reference input signal and generates a pseudo noise signal corresponding to the superimposed noise using the pseudo noise signal generating characteristic which is stored in the storage unit and which corresponds to the reference input signal. A subtraction unit subtracts the pseudo noise signal from the video signal.
Inventors:
Interview with Masahiro
Masaaki Matsuoka
Masaaki Matsuoka
Application Number:
JP2008030417A
Publication Date:
July 10, 2013
Filing Date:
February 12, 2008
Export Citation:
Assignee:
Canon Inc
International Classes:
H04N5/217; H04N5/225; H04N5/232
Domestic Patent References:
| JP2001094882A | ||||
| JP2006324983A | ||||
| JP2006211437A | ||||
| JP2003116092A | ||||
| JP2006186451A | ||||
| JP2000293965A | ||||
| JP6260889A |
Attorney, Agent or Firm:
Another role Shigehisa