Sungjoo Suh Seong Soo Chun Myung-Hee Lee Sanghoon Sull Efficient image down-conversion for mixed field/frame-mode macroblocks. 177-180 2003 ICIP (1) db/conf/icip/icip2003-1.html#SuhCLS03 http://dx.doi.org/10.1109/ICIP.2003.1246927