Sketch-based Evaluation of
Line Filtering Algorithms

© Mahes Visvalingam, 2000

Croplogo.jpg (11317 bytes)

This is a record of the paper presented by Mahes Visvalingam at GIScience 2000 (Oct 28-31, 2000 at Savannah, USA).   Note that the images have been degraded to protect publishers copyright.   The original powerpoint file is available.from m.visvalingam@dcs.hull.ac.uk


    Abstract

    Introduction

        title-t.jpg (5166 bytes)   challenges-t.jpg (5278 bytes)   holmes-t.jpg (3791 bytes)   revival.jpg (10870 bytes)       


P-stroke Sketch

            p-stoke1.jpg (5011 bytes)   p-stroke2.jpg (5343 bytes) 



The Ramer/Douglas-Peucker algorithm?

Comparisons

            rdp.jpg (3608 bytes)   profiles.jpg (4246 bytes)   contour.jpg (4178 bytes)   

            rdp-sketch.jpg (3378 bytes)   ex1.jpg (2745 bytes)  

    Evaluation of algorithms

            eval1.jpg (2030 bytes)   eval2.jpg (9686 bytes)   eval3.jpg (2230 bytes) 


Summary        

 final.jpg (2943 bytes)  

        Acknowledgements
       
References


© Dr Mahes Visvalingam, University of Hull, 2000

Cartographic Information Systems Research Group, University of Hull