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A psychophysical approach to assessing the quality of antialiased images

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2 Author(s)
J. A. Ferwerda ; Program for Comput. Graphics, Cornell Univ., Ithaca, NY, USA ; D. P. Greenberg

The assumption that antialiasing destroys useful visual information about object features is challenged in three experiments that examine the effects of antialiasing on the visual information for object location and motion. The results show that proper antialiasing eliminates the spurious visual information produced by sampling processes in image synthesis and allows the viewer's visual system to produce a precise representation of object location and a continuous representation of object motion. This suggests that in designing imagery systems, simply increasing the spatial and temporal addressability and resolution beyond limits set by the human visual system will have a negligible impact on image quality, but that effective use of antialiasing techniques could allow visual information about object features to be presented with great fidelity.<>

Published in:

IEEE Computer Graphics and Applications  (Volume:8 ,  Issue: 5 )