Patent ID: 8311742
Filing Date: 2012-11-13
Classification: G01W

Abstract:
1. A computer-implemented method for estimating solar plasma velocities, comprising: receiving, at a computer programmed with appropriate software, data representing a plurality of vector magnetograms, each vector magnetogram being a digital image comprising a plurality of pixels p,q and each pixel p,q having corresponding magnetic field components B receiving, at the computer, data representing a plurality of horizontal spatial derivatives ∂ transforming, at the computer, the data of the spatial and temporal derivatives and the data of the magnetic field components into a structure tensor S, the structure tensor including a plurality of elements expressly containing at least one of the horizontal magnetic field components B convolving, at the computer, the structure tensor S with a window function centered at pixel p,q to produce a convolved structure tensor obtaining, at the computer, a least-squares solution to an error metric C