Real-Time Localization of Moving Dipole Sources for Tracking Multiple Free-Swimming Weakly Electric Fish
Figure 5
Single fish tracking accuracy.
A) The error distribution of the dipole tracking for the four (blue) and eight (red) channel configurations (Obs. Prob.: Observation probability). B) The tracking accuracy improved after excluding the channel nearest to the fish within a set exclusion distance. C) The tracking errors were plotted vs. the distance from the tank wall. On each box, the central mark (red line) is the median, the edges of the box are the 25th and 75th percentiles, and the whiskers extend to the most extreme data points not considered outliers. Outliers are plotted individually (red markers): a value that is more than 1.5 times the interquartile range away from the top or bottom of the box as determined using the boxplot function (Statistics toolbox for Matlab). D) The error distributions of the dipole tracking near (<10 cm, red) and far (>10 cm, blue) from the tank wall.