#56: Motion flow estimation from image sequences with applications to biological growth and motility


In this paper,a new method for motion flow estimation that considers errors in all the derivative measurements is presented.Basedonthetotalleastsquares(TLS)model,we accurately estimate the motion flow in the general noise case by combining noise model (in form of covariance matrix) with a parametric motion model. The proposed algorithm is tested on two different types of biological motion, a growing plant root and a gastrulating embryo, with sequences obtained microscopically. The local, instantaneous velocity field estimated by the algorithm revealsthebehavioroftheunderlyingcellularelements.