Global Patent Index - EP 1078321 A1

EP 1078321 A1 2001-02-28 - METHOD FOR RECONSTRUCTING A SURFACE USING A LINEAR PREDICTION AND APPLICATIONS OF SAID METHOD

Title (en)

METHOD FOR RECONSTRUCTING A SURFACE USING A LINEAR PREDICTION AND APPLICATIONS OF SAID METHOD

Title (de)

VERFAHREN ZUR WIEDERHERSTELLUNG EINER FLÄCHE MITTELS LINEARER PRÄDIKTION UND ANWENDUNGEN DES VERFAHRENS

Title (fr)

PROCEDE POUR RECONSTRUIRE UNE SURFACE AVEC MISE EN OEUVRE D'UNE PREDICTION LINEAIRE ET APPLICATIONS DE CE PROCEDE

Publication

EP 1078321 A1 (FR)

Application

EP 99918032 A

Priority

  • FR 9901095 W
  • FR 9805784 A

Abstract (en)

[origin: FR2778474A1] The invention concerns a method for reconstructing a surface (Y) by a set of measurements on sites (S), using a linear prediction in points (X) located outside said sites (S). The method consists in using measurements of geometric variables [Y(S), Y'(S)] associated with said surface (Y), and provides an optimal estimate of the characteristics of said geometric variables [Y(S), Y'(S)]. The measured variables can be either altitudes (Y(S)), or slopes (Y'(S)). In the latter case, a major application is the optimisation of the control of deformable mirrors whereof the control loop comprises a Shack-Hartmann sensor. Said reconstruction method can be applied with technologies for measuring a wave front slopes, such as the Shack-Hartmann method, differential interferometry or the moiré fringe method.

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

G06F 17/17

IPC 8 full level (invention and additional information)

G01J 9/00 (2006.01); G06T 17/30 (2006.01)

CPC (invention and additional information)

G06T 17/30 (2013.01); G01J 9/00 (2013.01)

Citation (search report)

See references of WO 9957650A1

Designated contracting state (EPC)

BE CH DE ES FR GB IT LI NL

EPO simple patent family

FR 2778474 A1 19991112; FR 2778474 B1 20000804; AU 3610199 A 19991123; EP 1078321 A1 20010228; WO 9957650 A1 19991111

INPADOC legal status


2005-06-08 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20041201

2001-02-28 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20001206

2001-02-28 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): BE CH DE ES FR GB IT LI NL