From 03681823bacc53654b86fc142b5853889bff2c86 Mon Sep 17 00:00:00 2001
From: Biafra Ahanonu Spatial filtering can have a large impact on the resulting cell activity traces extracted from the movies and can lead to erroneous conclusions if not properly applied during pre-processing. For example, below are the correlations between all cell-extraction outputs from PCA-ICA, ROI back-application of ICA filters, and CNMF-e on a miniature microscope one-photon movie. As can be seen, especially in the case of ROI analysis, the correlation between the activity traces is rendered artificially high due to the correlated background noise. This is greatly reduced in many instances after proper spatial filtering. (Chebychev clustering, n = 5 clusters) Users can quickly filter movies using the Filtering movies with
normalizeMovie
¶normalizeMovie
function. See below for usage.Why conduct spatial filtering?
(Chebychev clustering, n = 5 clusters)
+ +normalizeMovie
¶