Yoon Kim Chun-Su Park Kyunghun Jang Sung-Jea Ko Improved POCS-Based De-blocking Algorithm for Block-Transform Compressed Images. 627-634 http://dx.doi.org/10.1007/978-3-540-39737-3_78 2003 conf/iscis/2003 ISCIS db/conf/iscis/iscis2003.html#KimPJK03