Apparatus and method of dynamically caching symbols to manage a dictionary in a text image coding and decoding system
    7.
    发明公开
    Apparatus and method of dynamically caching symbols to manage a dictionary in a text image coding and decoding system 审中-公开
    装置和方法用于在文本图像编码和解码系统中管理一个字典的符号的动态高速缓存

    公开(公告)号:EP1959672A1

    公开(公告)日:2008-08-20

    申请号:EP08150510.9

    申请日:2008-01-22

    IPC分类号: H04N1/411 H04N1/41

    摘要: An apparatus of a text image coding and decoding system (200) includes a decomposer (221) to decompose image data to extract a stripe image having one or more symbols, a matching unit (222) to match the symbols with reference symbols of a symbol dictionary, and a dynamic symbol caching unit (225) to generate one or more new symbols when the one or more new symbols of the symbols are not included in the symbol dictionary, and to remove the least used one or more of the reference symbols, so that the symbol dictionary is updated as an updated symbol dictionary with the one or more new symbols and without the least used one or more reference symbols.

    摘要翻译: 文本图像编码和解码系统(200)的设备包括一个分解器(221)分解图像数据以提取具有一个或多个符号,匹配单元(222)的条纹图像的符号与符号的参考符号匹配 词典和动态符号缓存部(225),以产生一个或多个新的符号当所述符号的一个或多个新的符号未在符号字典包括在内,以除去所使用的一个或多个参考符号的至少 所以没符号字典被更新为与所述一个或多个新的符号更新符号字典的和不具有最少使用一个或多个参考符号。