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The trapezoidal approximation of digitized images
COMPUTERVISION,GRAPHICS,AND IMAGEPROCESSING 24, 390 (1983)
Abstract
of Paper Accepted
for Publication
PAPER The Trapezoidal Approximation of Digitized Itnages. CHARLESM. WILLIAMS. Information Systems Department, Georgia State University, Atlanta, Georgia 30303. Received January 31, 1983. A highly efficient process for representing and compressing scanned data is described which vectorizes black-white document symbology by approximating it by means of trapezoidal shapes.Also discussed are methods for encoding the resultant descriptions for transmission or archival storage. Test results indicate the system can be used for the real-time compression of facsimile data, and measurements obtained from CCITT test documents reveal performance improvements over the Japanese READ code of 1.3 for business documents and 1.7 for technically oriented material.
390 0734-189X/83 $3.00 Copyright0 1983 by Academic All tights
of reproduction
Press, Inc. in any fom reserved
Abstract
of Paper Accepted
for Publication
PAPER The Trapezoidal Approximation of Digitized Itnages. CHARLESM. WILLIAMS. Information Systems Department, Georgia State University, Atlanta, Georgia 30303. Received January 31, 1983. A highly efficient process for representing and compressing scanned data is described which vectorizes black-white document symbology by approximating it by means of trapezoidal shapes.Also discussed are methods for encoding the resultant descriptions for transmission or archival storage. Test results indicate the system can be used for the real-time compression of facsimile data, and measurements obtained from CCITT test documents reveal performance improvements over the Japanese READ code of 1.3 for business documents and 1.7 for technically oriented material.
390 0734-189X/83 $3.00 Copyright0 1983 by Academic All tights
of reproduction
Press, Inc. in any fom reserved