1 Correction to: CCF Transactions on Pervasive Computing and Interaction (2020) 2:97–112 https://doi.org/10.1007/s42486-020-00033-3

The article “MobiEye: turning your smartphones into a ubiquitous unobtrusive vital sign monitoring system”, written by Omkar Patil · Wei Wang · Yang Gao · Zhanpeng Jin, was originally published online on 22 June 2020 with Open Access under “Creative Commons Attribution (CC BY) licence 4.0”/“Creative Commons Attribution Non-Commercial (CC BY-NC 4.0)”].

After publication in volume 2 issue 2 page 97–112 the author(s) decided to cancel the Open Access. Therefore, the copyright of the article has been changed on 22 December 2020 to © China Computer Federation (CCF) 2021 with all rights reserved.