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Author Lin, B.S. ♦ Chang, S.K.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©1979
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Algebra ♦ Database systems ♦ Information retrieval ♦ Relational databases ♦ Spatial databases ♦ Image storage ♦ Image retrieval ♦ Geographic Information Systems ♦ Knowledge based systems ♦ Navigation
Abstract An integrated approach for a pictorial database system is proposed. It will handle the non-pictorial data and pictorial data in a uniform way in order to allow for greater flexibility for pictorial information retrieval. The distinction of logical view and physical view of picture ob jects is discussed. A picture algebra is defined to manipulate the areal picture object, linear picture object, point picture object, and even the combination of these picture objects. In addition physical zooming as magnification of picture object, logical zooming technique is more important to navigate into the detailed description of this picture object or to browsing among the similar picture of the reference picture. Hierarchical representation for the handling of spatial data in order to fit logical zooming technique and the materization of the logical picture to physical picture ready for display are also included in picture algebra.
Description Author affiliation: University of Illinois at Chicago Circle (Lin, B.S.)
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 1979-11-06
Publisher Place USA
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Size (in Bytes) 587.27 kB
Page Count 6
Starting Page 525
Ending Page 530


Source: IEEE Xplore Digital Library