title: Sample drift correction following 4D confocal time-lapse imaging.
abstract: The generation of four-dimensional (4D) confocal datasets; consisting of 3D image sequences over time; provides an excellent methodology to capture cellular behaviors involved in developmental processes.  The ability to track and follow cell movements is limited by sample movements that occur due to drift of the sample or, in some cases, growth during image acquisition. Tracking cells in datasets affected by drift and/or growth will incorporate these movements into any analysis of cell position. This may result in the apparent movement of static structures within the sample. Therefore prior to cell tracking, any sample drift should be corrected. Using the open source Fiji distribution (1)  of ImageJ (2,3) and the incorporated LOCI tools (4), we developed the Correct 3D drift plug-in to remove erroneous sample movement in confocal datasets. This protocol effectively compensates for sample translation or alterations in focal position by utilizing phase correlation to register each time-point of a four-dimensional confocal datasets while maintaining the ability to visualize and measure cell movements over extended time-lapse experiments.
authors.affiliation: School of Biological Sciences, Monash University.
authors.forename: Adam
authors.initials: A
authors.lastname: Parslow
authors.affiliation: Janelia Farm Research Campus, Howard Hughes Medical Institute.
authors.forename: Albert
authors.initials: A
authors.lastname: Cardona
authors.affiliation: School of Biological Sciences, Monash University; robert.bryson-richardson@monash.edu.
authors.forename: Robert J
authors.initials: RJ
authors.lastname: Bryson-Richardson
mesh_terms: D000818:Animals; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D018613:Microscopy, Confocal / Q000379:methods*; D059008:Time-Lapse Imaging / Q000379:methods*; D015027:Zebrafish
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