公开(公告)号：US20220405910A1

公开(公告)日：2022-12-22

申请号：US17667718

申请日：2022-02-09

申请人： AIRBUS HELICOPTERS DEUTSCHLAND GMBH ,  AIRBUS HELICOPTERS

发明人： Gildas LANGEVIN ,  Elmar BONACCURSO ,  Pierre FRUITET

IPC分类号： G06T7/00 ,  H04N5/225 ,  G01N21/59 ,  G01N21/958 ,  B64C1/14 ,  B64D15/20

摘要： A method, comprising: providing a light source, a high contrast providing object, and an image acquisition device; emitting a light beam from the light source through the high contrast providing object, a transparent object and a surface of the transparent object toward the image acquisition device; exposing the surface of the transparent object to icing conditions such that a layer of ice is formed by ice accretion on the surface, wherein the light beam traverses the layer of ice after having traversed the transparent object; acquiring a series of images over time of the high contrast providing object using the image acquisition device; determining blur occurring in the series of images over the time; and quantifying the loss of visibility over the time through the transparent object on the basis of the determined blur.