Maheswari Visvalingam
Sketch-based evaluation of line filtering algorithms
Visvalingam, Maheswari
Authors
Abstract
This is a record of a talk given by Mahes Visvalingam at GIScience 2000 (Oct 28-31, 2000 at Savannah, USA). The Douglas-Peucker algorithm is better than Visvalingam's algorithm for minimal simplification of 2D lines. However, the sketches abstracted with this algorithm lacked Gestalt qualities of coherence and pregnance. Whereas the P-strokes generated with Visvalingam’s algorithm were perceived to be on a single terrain surface, those derived with the Douglas-Peucker algorithm did not. The talk explains how P-stroke sketches were used for cognitive evaluation of these line filtering algorithms.
Citation
Visvalingam, M. Sketch-based evaluation of line filtering algorithms.
Deposit Date | Oct 16, 2017 |
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Peer Reviewed | Not Peer Reviewed |
Keywords | Line generalisation algorithms, Terrain visualisation, Gestalt perception, Cogntiive analysis, Subconscious computation |
Public URL | https://hull-repository.worktribe.com/output/472460 |
Publisher URL | 1. Visvalingam, M and Dowson K (2001) "Towards Cognitive Evaluation of Computer-drawn Sketches", The Visual Computer 17 (4), 219 - 235. https://doi.org/10.1007/PL00013407. Preprint of paper: https://hydra.hull.ac.uk/resources/hull:8355 |
Contract Date | Oct 16, 2017 |
Files
GIScience2000.pdf
(588 Kb)
PDF
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