Method and apparatus for vertical compression and

专利名称：Method and apparatus for vertical

compression and decompression ofprogressive video data

发明人：Macinnis, Alexander G.,Zhong, Sheng,Alvarez,

Jose R.

申请号：EP02258037.7申请日：20021121公开号：EP1322114A3公开日：20031112

专利附图：

摘要：A method and apparatus are disclosed for polyphase filtering a first number of

vertical lines of video data to generate a second number of vertical lines of video dataand then polyphase filtering the second number of vertical lines of video data to re-create the first number of vertical lines of video data. The first number of vertical lines islarger than the second number of vertical lines. The polyphase filtering of the firstnumber of vertical lines includes low-pass filtering and sample rate converting (down-converting) the first number of vertical lines to the second number of vertical lines. Thepolyphase filtering of the second number of vertical lines includes sample rateconverting (up-sampling) the second number of vertical lines to the first number ofvertical lines. Between the down-sampling and the up-sampling, video compression andde-compression may also be performed using, for example, standard compression andde-compression techniques.

申请人：Broadcom Corporation

地址：16215 Alton Parkway Irvine, California 92618 US

国籍：US

代理机构：Jehle, Volker Armin, Dipl.-Ing.

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