The paper “An Optimized Parallel IDCT on Graphics Processing Units” by Biao Wang, Mauricio Alvarez-Mesa, Chi Ching Chi, and Ben Juurlink has been accepted at the 2012 International Workshop on Algorithms, Models and Tools for Parallel Computing on Heterogeneous Platforms (HeteroPar’2012) which will be held in Rhodes Island, Greece on August 27, 2012. The paper presents the work of optimizing the H.264 inverse transform on GPUs, which has been conducted at TU_berlin as part of the LPGPU project. More information on HeteroPar can be found at http://pm.bsc.es/heteropar12/.