EP 1203256 A1 20020508 - MICROSCOPE FILTER FOR AUTOMATIC CONTRAST ENHANCEMENT
Title (en)
MICROSCOPE FILTER FOR AUTOMATIC CONTRAST ENHANCEMENT
Title (de)
FILTER FÜR EIN MIKROSKOP ZUR AUTOMATISCHEN KONTRASTVERSTÄRKUNG
Title (fr)
FILTRE POUR MICROSCOPE PERMETTANT D'AMELIORER LE CONTRASTE AUTOMATIQUE
Publication
Application
Priority
- SE 0001376 W 20000629
- SE 9902641 A 19990709
- US 15044099 P 19990824
Abstract (en)
[origin: WO0104683A1] A microscope comprises an object holder (3), optics which in an image plane form an image of an object (2) which is placed in the object holder, a digital image sensor (5) which has a number of sensor elements (6) for recording the image. The image sensor and the image plane are arranged in such manner that the spatial frequency of the sensor elements (6) is higher than the maximum spatial frequency of the image. The microscope further comprises at least a first calculating means (24) which is connected to the image sensor (5) and which is adapted to provide a two-dimensional filter function, which essentially has the value one at the spatial frequency zero, a value higher than zero at a spatial frequency above the maximum spatial frequency of the image and a peak value between said frequencies, to calculate a digital filter corresponding to a two-dimensional inverse Fourier transform of the filter function, and to filter a recorded image by means of the digital filter.
IPC 1-7
IPC 8 full level
G02B 21/00 (2006.01); G06T 5/10 (2006.01); G06T 5/20 (2006.01)
CPC (source: EP)
G02B 21/365 (2013.01); G06T 5/10 (2013.01); G06T 2207/10056 (2013.01)
Citation (search report)
See references of WO 0104683A1
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0104683 A1 20010118; AU 6039100 A 20010130; EP 1203256 A1 20020508; JP 2003504745 A 20030204
DOCDB simple family (application)
SE 0001376 W 20000629; AU 6039100 A 20000629; EP 00946668 A 20000629; JP 2001510035 A 20000629