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2010

Estimating the motion of plant root cells from in vivo confocal laser scanning microscopy images

7 years 11 months ago
Estimating the motion of plant root cells from in vivo confocal laser scanning microscopy images
Images of cellular structures in growing plant roots acquired using confocal laser scanning microscopy (CLSM) have some unusual properties that make motion estimation challenging. These include multiple motions, non-Gaussian noise and large regions with little spatial structure. In this paper, a method for motion estimation is described that uses a robust multi-frame likelihood model and a technique for estimating uncertainty. An efficient region-based matching approach was used followed by a forward projection method. Over small timescales the dynamics are simple (approximately locally constant) and the change in appearance small. Therefore a constant local velocity model is used and the MAP estimate of the joint probability over a set of frames is recovered. Occurrences of multiple modes in the posterior are detected, and in the case of a single dominant mode, motion is inferred using Laplace'e method. The method was applied to several Arabidopsis thaliana root growth sequences...
Timothy J. Roberts, Stephen J. McKenna, Cheng-Jin
Added 20 May 2011
Updated 20 May 2011
Type Journal
Year 2010
Where MVA
Authors Timothy J. Roberts, Stephen J. McKenna, Cheng-Jin Du, Nathalie Wuyts, Tracy A. Valentine, A. Glyn Bengough
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