Optimal Temporal Sampling Aperture for HDTV Varispeed Acquisition
According to the perceptions of the human visual system, optimization of the temporal sampling aperture is required to best convey motion blur during HDTV image capturing. Filtering temporal aliasing artifacts becomes possible with the latest technologies in picture acquisition, and is applicable for advanced tape-based or tapeless recording. This paper presents an analysis of video capturing and recording in HDTV, for the case of variable frame rate (varispeed) acquisition. It proposes an optimization of the exposure duration, so that the duration becomes dependent on the frame rate of the master format. This approach restrains the strobe effect and utilizes motion blur for better rendering of dynamic scenes. The improved overall image quality also benefits the processes of editing, compositing, conversion, and compression. Finally, the research results are integrated into an embedded algorithm to suggest how to implement this strategy.
- Print ISSN
- 1545-0279
- Electronic ISSN
- 2160-2492
- Published
- 2004-04
- Content type
- Original Research
- DOI
- 10.5594/J15188