公开(公告)号：FR2860300B1

公开(公告)日：2006-01-27

申请号：FR0311218

申请日：2003-09-25

Applicant: FORMULACTION

Inventor： SNABRE PATRICK ,  BRUNEL LAURENT

IPC: G01N15/02 ,  G01N21/85 ,  G01N21/47 ,  G01P3/36

Abstract: Method and device for detecting and analyzing movement in a scattering medium, by: projecting a coherent light towards the scattering medium; performing a spatial and temporal sampling of the electromagnetic field of scattered light, in order to obtain a plurality of images of the electromagnetic field; and analyzing the speckle grains resulting from the images obtained from the spatial and temporal sampling of the electromagnetic field of the scattered light, in order to detect and analyze a movement in the scattering medium, the speckle grain analysis step including a step of analyzing the inter-image distance.

公开(公告)号：FR2860300A1

公开(公告)日：2005-04-01

申请号：FR0311218

申请日：2003-09-25

Applicant: FORMULACTION

Inventor： SNABRE PATRICK ,  BRUNEL LAURENT

IPC: G01N15/02 ,  G01N21/47 ,  G01P3/36 ,  G01N21/85

Abstract: Method and device for detecting and analyzing movement in a scattering medium, by: projecting a coherent light towards the scattering medium; performing a spatial and temporal sampling of the electromagnetic field of scattered light, in order to obtain a plurality of images of the electromagnetic field; and analyzing the speckle grains resulting from the images obtained from the spatial and temporal sampling of the electromagnetic field of the scattered light, in order to detect and analyze a movement in the scattering medium, the speckle grain analysis step including a step of analyzing the inter-image distance.