A Tile-Based System for the Rapid Display of Symbolized Digital Nautical Chart Data

reportActive / Technical Report | Accession Number: ADA527671 | Open PDF

Abstract:

For efficient retrieval and display of Digital Nautical Chart DNC imagery, a tiled-based approach is presented. By preprocessing the data into persistent image tiles, the presented method can minimize or eliminate image processing steps during the retrieval process. Tile-based approaches define constant image sizes and scales for geographic regions, therefore tiles can be pregenerated and stored in a format needed for transmission to users. This greatly improves the performance of applications that visualize DNC data and allows for advanced caching of DNC imagery tiles. In addition, the evenly-spaced and commonly-sized images are stored in files that are easily indexed allowing for simple and fast lookup of DNC imagery tiles for a given geographic area.

Author(s):
Schoenhardt, Norman ; Sample, John T. ; Mccreedy, Frank
Author Organization(s):
NAVAL RESEARCH LAB STENNIS SPACE CENTER MS
Descriptive Note:
Conference paper
Supplementary Note:
See also ADM202806. Proceedings of the Oceans 2009 MTS/IEEE Conference held in Biloxi, Mississippi on 26-29 October 2009. U.S. Government or Federal Purpose Rights License. The original document contains color images.
Pagination:
0007

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Monitor Series:
NRL
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_6_Net Centric; JCA_8_Building Partnerships
Communities of Interest:
Materials and Manufacturing Processes
Descriptor(s):
*INFORMATION RETRIEVAL, *MARINE NAVIGATION, *DATA BASES, DATA MANAGEMENT, DATA TRANSMISSION SYSTEMS, DISPLAY SYSTEMS, IMAGES, GEOGRAPHIC AREAS, BOAT AND SHIP SAFETY, NAVIGATION CHARTS, SYMPOSIA, DIGITAL SYSTEMS, IMAGE PROCESSING, EFFICIENCY
Field(s)/Group(s):
Information Science, Underwater and Marine Navigation and Guidance
Keyword(s):
DNC(DIGITAL NAUTICAL CHARTS), TILE BASED SYSTEM, CONSTANT IMAGE SIZES, VPF(VECTOR PRODUCT FORMAT), GEOSYM(GEOSPATIAL SYSTEMS FOR DIGITAL DISPLAYS), SYMBOLIZED IMAGERY, PE0602435N
Report Date:
2010 Jun 01
Creation Date:
2010 Sep 15