Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Kiyoshi Tanaka and Akitaka Uchida,Adaptive prefilter for bit-rate improvement in video compression,SPIE Proceedings,0277-786X,SPIE,2003-05-07,5022,,984,https://cir.nii.ac.jp/crid/1870865118219665792,https://doi.org/10.1117/12.482363