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Biology

University of Massachusetts Amherst

2006

Image motion analysis

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Motion Flow Estimation From Image Sequences With Applications To Biological Growth And Motility, Gang Dong, Tobias I. Baskin, Kannappan Palaniappan Jan 2006

Motion Flow Estimation From Image Sequences With Applications To Biological Growth And Motility, Gang Dong, Tobias I. Baskin, Kannappan Palaniappan

Biology Department Faculty Publication Series

In this paper, a new method for motion flow estimation that considers errors in all the derivative measurements is presented. Based on the total least squares (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 reveals the behavior of the underlying cellular elements.