专利名称：METHOD FOR ENCODING SYMBOLS FROM
A SEQUENCE OF DIGITIZED IMAGES
发明人：AMON, PETER
申请号：EP10765622.5
申请日：20101013
公开号：EP2489187A1
公开日：
20120822
专利内容由知识产权出版社提供
摘要：The invention relates to a method for encoding symbols from a sequence of digitized images (I), the images (I) being divided into image regions (MB) and the symbols (S) of a particular image region (MB) being encoded by means of entropy encoding, which is based on one or more probability models, the probability model(s) taking the frequencies of symbols (S) occurring in image regions (MB) into account. In the method according to the invention, the image regions (MB) are processed in encoding cycles (CC, CC1, CC2,... CC5) such that during an encoding cycle (CC, CC1, CC2,... CC5) the entropy encoding process is carried out in a plurality of parallel encoding branches (1, 2, 3), wherein in each encoding branch (1, 2, 3) an image region (MB) is encoded on the basis of a set of probability models, and wherein the frequencies for the set of probability models during encoding of the image region are adapted on the basis of the symbols (S) occurring in the image region (MB). The set of probability models used in each encoding branch (1, 2, 3) for encoding is based on a common set of probability models that is valid for all encoding branches (1, 2, 3), which set takes into account the frequencies of symbols (S) in the image regions (MB) of all encoding branches (1, 2, 3). The common set of probability models is updated at predetermined time intervals on the basis of
valid from是什么意思frequencies that are adapted in at least one temporally preceding encoding cycle (CC, CC1, CC2,... CC5).
申请人：SIEMENS AKTIENGESELLSCHAFT
地址：Wittelsbacherplatz 2 80333 München DE
国籍：DE
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