EP 0981766 A1 20000301 - METHOD AND DEVICE FOR READING AND PROCESSING A RADIATION IMAGE
Title (en)
METHOD AND DEVICE FOR READING AND PROCESSING A RADIATION IMAGE
Title (de)
VERFAHREN UND ANORDNUNG ZUM AUSLESEN UND VERARBEITEN EINES STRAHLUNGSBILDES
Title (fr)
PROCEDE DISPOSITIF POUR LA LECTURE ET LE TRAITEMENT D'UNE IMAGE RADIOLOGIQUE
Publication
Application
Priority
- DE 19719954 A 19970514
- EP 9802695 W 19980507
Abstract (en)
[origin: DE19719954A1] The invention relates to a method and a device for reading and processing radiation images individually recorded on an erasable image carrier (34), specially an image plate coated with a crystalline storage substance. In order to read a radiation image, the image storage surface (36) of an image carrier (34) which is fixed on a reading device (10) is scanned by means of a scanning beam (40) of an excitation light source (22). The useful light (44) detected during scanning of the image points (42) of the image storage surface (36) is scanned for scan coordinates ( phi , z) of the reading device (10) and digitally converted into an image matrix reproducing the radiation image in a grid-like manner. In order to correct errors in the read-out radiation image due to inhomogeneities of the image storage surface (36), a corrected value is determined as an element of a corrected matrix from an initial correcting image for each image point (42). The image matrix is then corrected point by point according to the corrected matrix on the radiation images which have been recorded and are read on the image carrier (34).
IPC 1-7
IPC 8 full level
G01T 1/00 (2006.01); G01T 1/29 (2006.01); G06T 3/00 (2006.01); H01J 31/62 (2006.01); H04N 1/04 (2006.01); H04N 1/409 (2006.01)
CPC (source: EP)
H01J 31/62 (2013.01)
Citation (search report)
See references of WO 9852070A1
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
DE 19719954 A1 19981119; DE 59811675 D1 20040819; EP 0981766 A1 20000301; EP 0981766 B1 20040714; JP 2002501701 A 20020115; WO 9852070 A1 19981119
DOCDB simple family (application)
DE 19719954 A 19970514; DE 59811675 T 19980507; EP 9802695 W 19980507; EP 98925555 A 19980507; JP 54876898 A 19980507