Global Patent Index - EP 1853888 A1

EP 1853888 A1 20071114 - METHOD FOR OBTAINING A PHASE IMAGE FROM AN INTENSITY IMAGE

Title (en)

METHOD FOR OBTAINING A PHASE IMAGE FROM AN INTENSITY IMAGE

Title (de)

VERFAHREN ZUM ERHALTEN EINES PHASENBILDES AUS EINEM INTENSITÄTSBILD

Title (fr)

OBTENTION D'UNE IMAGE DE PHASE A PARTIR D'UNE IMAGE D'INTENSITE

Publication

EP 1853888 A1 20071114 (FR)

Application

EP 06709243 A 20060203

Priority

  • FR 2006000254 W 20060203
  • FR 0501082 A 20050203

Abstract (en)

[origin: FR2881520A1] The method involves applying two filters to corresponding integral transform representation, where the filters are measurements of a representation of a Green function in an Eigen function space of a separable coordinated Helmholtz equation. One transform representation is produced by transforming measurement of intensity variation. Another transform representation is produced by transforming corrected non transform representation. The corrected non transform representation is produced by applying a correction, based on intensity measurement on a selected surface, to a non transform representation. Independent claims are also included for the following: (1) a computer program for executing steps of retrieval method (2) an apparatus for retrieving phase of radiation wave field.

IPC 8 full level

G01J 9/00 (2006.01)

CPC (source: EP US)

G01J 9/00 (2013.01 - EP US)

Citation (search report)

See references of WO 2006082327A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

FR 2881520 A1 20060804; FR 2881520 B1 20071012; EP 1853888 A1 20071114; US 2008159642 A1 20080703; US 7889945 B2 20110215; WO 2006082327 A1 20060810

DOCDB simple family (application)

FR 0501082 A 20050203; EP 06709243 A 20060203; FR 2006000254 W 20060203; US 88360406 A 20060203