Patent ID: 8379794
Filing Date: 2013-02-19
Classification: A61B,A61N,G06T

Abstract:
1. A method for estimation of retrospective and real-time 3D target position by a single imager comprising: a. using a single imager to image a 2D plane of a target, wherein a 2D planar image of said target is used to resolve 2D target position components of said target; and b. using a probability density function (PDF) estimated by maximum likelihood estimate (MLE), or using a population based PDF for estimating 3D target position; i. using an assumed 3D PDF for a 3D position of said target to determine a probability P(u, v, α) for said target to be projected into a point (u, v) on said imager positioned at angle α; ii. using a probability P(u, v, α) of said 2D target position components in said MLE to estimate said PDF as a PDF that best fits said 2D components, wherein said PDF comprises at least one of a left-right mean position(μ iii. using said PDF estimated by said MLE to estimate one said target position component disposed along an imager axis of said target, wherein an estimate of said 3D target position is made from said 2D target position components in said 2D planar image;