This article [Opt. Eng. 50, 047001 (2011)] was originally published on 6 April 2011 with a typographical error in the title. The correct title appears above. The corrected manuscript was published online 13 April 2011 and it appears correctly in print.
Kang-Sun Choi, Sung-Jea Ko, "Errata: Improved differential pulse code modulation-block truncation coding method adopting two-level mean squared error near-optimal quantizers," Opt. Eng. 50(4) 049801 (1 April 2011)