초록 ▼

Apparatus and method for determining the alignment of a wheel of a vehicle includes mounting a known optical target to a wheel on the vehicle, the known optical target having a plurality of optical elements, each optical element having at least one straight edge disposed on a background, obtaining a

Apparatus and method for determining the alignment of a wheel of a vehicle includes mounting a known optical target to a wheel on the vehicle, the known optical target having a plurality of optical elements, each optical element having at least one straight edge disposed on a background, obtaining at least one video image of the optical target, estimating from the video image of the optical target the characteristics in said video image of a plurality of lines corresponding to projections onto the video image of the straight edges of the optical elements, and determining from the estimates of the characteristics the alignment of the wheel. A similar target for determining the position of a runway on which the vehicle is positioned is also disclosed.

대표청구항 ▼

[ What is claimed is:] [1.]1. A method of determining the alignment of a wheel of a vehicle, said method composing the steps of:mounting a known optical target to said wheel on said vehicle, said known optical target having a plurality of optical elements which are substantially surrounded by a subs

[ What is claimed is:] [1.]1. A method of determining the alignment of a wheel of a vehicle, said method composing the steps of:mounting a known optical target to said wheel on said vehicle, said known optical target having a plurality of optical elements which are substantially surrounded by a substantially hollow optical element;obtaining at least one video image of said optical target;identifying in said video image the projections of said plurality of said optical elements by fist identifying projection of said hollow optical element;determining construction lines from the edges of said projections of said optical elements in said video image; anddetermining from said construction lines the alignment of said wheel.