EP 1446768 A1 20040818 - TEMPORAL NOISE REDUCTION AND LOCAL CONTRAST AMPLIFICATION
Title (en)
TEMPORAL NOISE REDUCTION AND LOCAL CONTRAST AMPLIFICATION
Title (de)
ZEITLICHE RAUSCHMINDERUNG UND LOKALE KONTRASTVERSTÄRKUNG
Title (fr)
REDUCTION TEMPORELLE DU BRUIT ET AMPLIFICATION LOCALE DES CONTRASTES
Publication
Application
Priority
DE 0104341 W 20011119
Abstract (en)
[origin: WO03049031A1] The invention relates to a method for processing images, wherein images scanned by at least one detector device are processed, and to a device for carrying out said method. According to the invention, an image is produced from a sequence of chronologically successive individual images by temporal averaging of said individual images. During a classification step of said method, structured image areas are identified in an image and high pass filtering occurs in another step of said method in the identified structured image areas of the resulting image. Temporal averaging enables detector noise to be reduced and subsequent high pass filtering, which is previously and selectively limited to structurally recognized images, increases the resolution virtually, thereby enhancing the overall image quality.
IPC 1-7
IPC 8 full level
G06T 3/00 (2006.01); G06K 9/40 (2006.01); G06T 5/00 (2006.01); G06T 5/20 (2006.01); G06T 5/50 (2006.01)
CPC (source: EP US)
G06T 5/20 (2013.01 - EP US); G06T 5/50 (2013.01 - EP US); G06T 5/70 (2024.01 - EP US); G06T 5/73 (2024.01 - EP US); G06T 2207/20182 (2013.01 - EP US); G06T 2207/20192 (2013.01 - EP US); G06T 2207/20216 (2013.01 - EP US)
Citation (search report)
See references of WO 03049031A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 03049031 A1 20030612; EP 1446768 A1 20040818; JP 2005512200 A 20050428; US 2005220354 A1 20051006
DOCDB simple family (application)
DE 0104341 W 20011119; EP 01274867 A 20011119; JP 2003550150 A 20011119; US 49621104 A 20040519