公开(公告)号：US20190147603A1

公开(公告)日：2019-05-16

申请号：US16186594

申请日：2018-11-12

Applicant: Thales

Inventor： Pierre-Yves Dumas ,  Emmanuel Nguyen ,  Christian Mehlen

IPC: G06T7/246 ,  G06T7/70

Abstract: This method for determining a virtual speed vector includes the steps of acquiring (110) a sequences of images of the surrounding environment from an image sensor defining an optical projection center that is substantially stationary relative to the mobile engine, analyzing (120) at least two successive images in order to determine, in each of the two images, a point, called epipole, representing the position in said image of the optical center of the image sensor at the moment of the acquisition of the other image, and for each analyzed image, determining (130) the position of the epipole of said image on a display usable to pilot the mobile engine and displaying (130), on the display, a symbol representative of the virtual speed vector in said position.

公开(公告)号：US10970853B2

公开(公告)日：2021-04-06

申请号：US16186594

申请日：2018-11-12

Applicant: Thales

Inventor： Pierre-Yves Dumas ,  Emmanuel Nguyen ,  Christian Mehlen

IPC: G06T7/246 ,  G06T7/70 ,  G06T7/20 ,  G01C21/16 ,  G01S19/52

Abstract: This method for determining a virtual speed vector includes the steps of acquiring (110) a sequences of images of the surrounding environment from an image sensor defining an optical projection center that is substantially stationary relative to the mobile engine, analyzing (120) at least two successive images in order to determine, in each of the two images, a point, called epipole, representing the position in said image of the optical center of the image sensor at the moment of the acquisition of the other image, and for each analyzed image, determining (130) the position of the epipole of said image on a display usable to pilot the mobile engine and displaying (130), on the display, a symbol representative of the virtual speed vector in said position.