Motion correction is the first step in a pipeline of algorithms to analyze calcium imaging videos and extract biologically relevant information, for example the network structure of the neurons therein. Fast motion correction is especially critical for closed-loop activity triggered stimulation experiments, where accurate detection and targeting of specific cells in necessary. We introduce a novel motion-correction algorithm which uses a Fourier-transform approach, and a combination of judicious downsampling and the accelerated computation of many L2 norms using dynamic programming and two-dimensional, fft-accelerated convolutions, to enhance its efficiency. Its accuracy is comparable to that of established community-used algorithms, and it is more stable to large translational motions. It is programmed in Java and is compatible with ImageJ.
moco: Fast Motion Correction for Calcium Imaging
Alexander J. Dubbs,James Guevara,R. Yuste
Published 2015 in Front. Neuroinform.
ABSTRACT
PUBLICATION RECORD
- Publication year
2015
- Venue
Front. Neuroinform.
- Publication date
2015-06-19
- Fields of study
Medicine, Computer Science, Mathematics
- Identifiers
- External record
- Source metadata
Semantic Scholar, PubMed
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