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http://dx.doi.org/10.9717/kmms.2011.14.2.210

Effective Compression Technique for Secure Transmission and Storage of GIS Digital Map  

Jang, Bong-Joo (부경대학교 정보보호협동과정)
Moon, Kwang-Seok (부경대학교 전자공학과)
Lee, Suk-Hwan (동명대학교 정보보호학과)
Kwon, Ki-Ryong (부경대학교 정보보호협동과정)
Publication Information
Journal of Korea Multimedia Society / v.14, no.2, 2011 , pp. 210-218 More about this Journal
Abstract
Generally, GIS digital map has been represented and transmitted by ASCII and Binary data forms. Among these forms, Binary form has been widely used in many GIS application fields for the transmission of mass map data. In this paper, we present a hierarchical compression technique of polyline and polygon components for effective storage and transmission of vector map with various degree of decision. These components are core geometric components that represent main layers in vector map. The proposed technique performs firstly the energy compaction of all polyline and polygon components in spatial domain for the lossless compression of detailed vector map and compress independently integer parts and fraction parts of 64bit floating points. From experimental results, we confirmed that the proposed technique has superior compressive performance to the conventional data compression of 7z, zip, rar and gz.
Keywords
Vector Map Data; Loseless Data Compression; GIS Digital Map;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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