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1. (WO2004027359) METHOD AND DEVICE FOR DETERMINING A PIXEL GRAY SCALE VALUE IMAGE

Pub. No.:    WO/2004/027359    International Application No.:    PCT/DE2003/002966
Publication Date: Apr 1, 2004 International Filing Date: Sep 6, 2003
IPC: G01J 1/00
G01J 9/00
G01S 7/491
G01S 17/36
G01S 17/89
Applicants: CONTI TEMIC MICROELECTRONIC GMBH
LANG, Christian
SCHNEIDER, Bernd
JORDAN, Holger
DOBUSCH, Armin
Inventors: LANG, Christian
SCHNEIDER, Bernd
JORDAN, Holger
DOBUSCH, Armin
Title: METHOD AND DEVICE FOR DETERMINING A PIXEL GRAY SCALE VALUE IMAGE
Abstract:
Disclosed is a method for determining a pixel gray scale value image, particularly for a multidimensional image system. According to said method, a first modulation signal (M1) which is emitted at the emitting end and is reflected on an object that is to be recorded is correlated with a second modulation signal (M2) and is recorded at the receiving end based on at least two correlation signals (Ua, Ub or Ia, Ib) that are proportional to the respective received first modulation signal (M1). One of said modulation signals (M1, M2) is phase-shifted in several phase steps (ψk) at the emitting end or receiving end, and a difference signal (D) is determined for each phase step (ψk) based on the correlation signals (Ua, Ub or Ia, Ib) while a pixel gray scale value (Pgrau) is determined based on said difference signal (D) independently of interfering signals (SL).