Global Patent Index - EP 1076992 A1

EP 1076992 A1 2001-02-21 - DENSITOMETRY METHOD

Title (en)

DENSITOMETRY METHOD

Title (de)

DENSITOMETRISCHES VERFAHREN

Title (fr)

PROCEDE DE DENSITOMETRIE

Publication

EP 1076992 A1 (EN)

Application

EP 99918162 A

Priority

  • GB 9901256 W
  • GB 9808968 A

Abstract (en)

[origin: WO9956462A1] A method of performing densitometry on photographic films and papers or the like, in which a processed film control strip (1) is digitally scanned (3) and analysed to produce a set of constant exposure information tables (5). The information contained in these tables is cross referenced (9) with appropriate transmission/reflection density values (7) and statistical techniques (11) are applied to the data to give a mapping of the transmission/reflection density values (7) to the constant exposure information (5).

IPC 1-7 (main, further and additional classification)

H04N 1/60; G01N 21/59

IPC 8 full level (invention and additional information)

G01N 21/47 (2006.01); G01N 21/59 (2006.01); H04N 1/00 (2006.01); H04N 1/60 (2006.01)

CPC (invention and additional information)

G01N 21/5907 (2013.01); H04N 1/6033 (2013.01)

Citation (search report)

See references of WO 9956462A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9956462 A1 19991104; AU 3619499 A 19991116; CN 1298600 A 20010606; EP 1076992 A1 20010221; GB 9808968 D0 19980624; JP 2002513252 A 20020508

INPADOC legal status


2003-01-15 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20020705

2002-04-10 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20020222

2001-02-21 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001018

2001-02-21 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE