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Investigation of the Progressive Bi-Level Coding Technique for the High-Resolution Bi-Level Data Compression Standard

机译:高分辨率双层数据压缩标准的渐进双层编码技术研究

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The purpose of this study was to investigate the Progressive Bi-Level CodingTechnique for the High Resolution Bi-Level Data Compression Standard. At the present time, CCITT Recommendations for Group 4 permit the transmission of only sequentially transmitted black and white imagery. In addition, coding efficiency of Group 4 machines suffers for input pages containing half-time information. As a result of much increased commercial interest from major computer and telecommunications companies, there has been intense effort in the international standards bodies to select a bi-level image compression technique for future image storage and communications applications. The focal point of this activity has been the Joint Bi-level Image Group (JBIG) of ISO/IEC and CCITT.

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