Correction: F-Formation Detection: Individuating

CORRECTION

Correction: F-Formation Detection: Individuating Free-Standing Conversational Groups in Images Francesco Setti, Chris Russell, Chiara Bassetti, Marco Cristani

There is an error in the first sentence of the Evaluation Metrics subsection of the Experiments section. The correct sentence is: As accuracy measures, we adopt the metrics proposed in [3] and extended in [12]: we consider a group as correctly estimated if at least d(T  jGj)e of their members are found by the grouping method and correctly detected by the tracker, and if no more than (1−T)  jGj false subjects (of the detected tracks) are identified, where jGj is the cardinality of the labelled group G, and T Є [0,1] is an arbitrary threshold, called tolerance threshold.

Reference 1.

Setti F, Russell C, Bassetti C, Cristani M (2015) F-Formation Detection: Individuating Free-Standing Conversational Groups in Images. PLoS ONE 10(5): e0123783. doi: 10.1371/journal.pone.0123783 PMID: 25996922

OPEN ACCESS Citation: Setti F, Russell C, Bassetti C, Cristani M (2015) Correction: F-Formation Detection: Individuating Free-Standing Conversational Groups in Images. PLoS ONE 10(9): e0139160. doi:10.1371/ journal.pone.0139160 Published: September 22, 2015 Copyright: © 2015 Setti et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

PLOS ONE | DOI:10.1371/journal.pone.0139160 September 22, 2015

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