Erratum to Alternate Iterative Least-Squares Algorithm Based on Nonuniform Phase Shifting for Suppressing Nonlinearity Errors in Fringe Projection Profilometry

In the above article
[1]
, the inequality in (12) should be
\begin{equation*} \text {gcd}(\delta _{1},\delta _{2},\ldots,\delta _{N},2\pi) < 2\pi /(K+1)\end{equation*}
rather than
\begin{equation*} \text {gcd}(\delta _{1},\delta _{2},\ldots,\delta _{N},2\pi) < 2\pi /K.\end{equation*}