Antialiasing of interlaced video animation

Authors:
John Amanatides;Don P. Mitchell
Affiliations:
AT&T Bell Laboratories, Murray Hill, NJ;AT&T Bell Laboratories, Murray Hill, NJ
Venue:
SIGGRAPH '90 Proceedings of the 17th annual conference on Computer graphics and interactive techniques
Year:
1990

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Abstract

The production of computer-generated video presents a number of difficulties not encountered with motion pictures. Interlaced scanning and the color subcarrier of NTSC video are responsible for special problems such as interline flicker, and chroma aliasing. As in motion pictures, temporal aliasing is also an issue. A renderer can sample and filter a moving image in an arbitrary manner and is not constrained to simply imitate the behavior of a television camera. This paper explores several different spatiotemporal antialiasing filters and how they affect the quality of video animation.