Abstract
A post-processing technique for removing discretisation artefacts (jaggies) is described. It is based on the detection of a jaggy by means of a suitable morphological filter and then using a heuristic algorithm to compute a probable density distribution, which is applied to the pixels adjacent to the jaggy. Also dashed lines are recognized and interpreted as possible discretisation artefacts. The method applies to both spatial and temporal aliasing.
Similar content being viewed by others
Explore related subjects
Discover the latest articles, news and stories from top researchers in related subjects.References
Bloomenthal J (1983) Edge inference with applications to anti-aliasing. ACM Comput Graph Proc SIGGRAPH 17(3):157–162
Carpenter L (1984) The A-buffer, an anti-aliased hidden surface method. ACM Comput Graph, Proc SIGGRAPH 187(3):103–108
Crow F (1977) The aliasing problem in computer generated shaded images. Commun ACM 20(11):799–805
Crow F (1981) Comparison of anti-aliasing techniques. IEEE Comput Graph Appl 1(1):40–49
Foley J, van Dam A (1984) Fundamentals of interactive computer graphics. Addison Wesley, Reading
Oppenheim A, Schafer R (1975) Digital signal processing. Prentice Hall, Englewood Cliffs
Serra J (1982) Image analysis and mathematical morphology. Academic Press, New York
Weiler K, Atherton P (1977) Hidden surface removal using polygon area sorting. ACM Comput Graph, Proc SIGGRAPH 11(2):214–222
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
van Overveld, C.W.A.M. Application of morphological filters to tackle discretisation artefacts. The Visual Computer 8, 217–232 (1992). https://doi.org/10.1007/BF01900657
Issue Date:
DOI: https://doi.org/10.1007/BF01900657