Subband domain coding of binary textual images for document archiving

作     者：Gerek, ON Çetin, AE Tewfik, AH Atalay, V 

作者机构：Bilkent Univ Dept Elect Engn TR-06533 Ankara Turkey Univ Minnesota Dept Elect Engn Minneapolis MN 55455 USA Middle E Tech Univ Dept Comp Engn TR-06531 Ankara Turkey 

出 版 物：《IEEE TRANSACTIONS ON IMAGE PROCESSING》 (IEEE Trans Image Process)

年 卷 期：1999年第8卷第10期

页      面：1438-1446页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

主　　题：binary image coding binary subband decomposition document retrieval textual image compression 

摘      要：In this work, a subband domain textual image compression method is developed. The document image is first decomposed into subimages using binary subband decompositions. Next, the character locations in the subbands and the symbol library consisting of the character images are encoded, The method is suitable for keyword search in the compressed data. It is observed that very high compression ratios are obtained with this method. Simulation studies are presented.