 The H.261 standard was developed based on motion-compensated DCT compression.H.261 was the first practical video coding standard, and was developed with patents licensed from a number of companies, including Hitachi, PictureTel, NTT, BT, and Toshiba, among others.Since H.261, motion-compensated DCT compression has been adopted by all the major video coding standards (including the H.26x and MPEG formats) that followed.