October 2011 — The laboratory delegation of Andrey Krylov, Andrey Nasonov and Alexandra Chernomorets visited the Institute of VLSI design of Zhejiang university, Hangzhou, China in 16-23 October 2011 in terms of joint work in the area of image quality estimaton. The purpose of the visit was discussing the work in the area of image ringing effect detection and suppression.