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Detail
Journal Article
Temporal Anti-Aliasing of a Stereoscopic 3D Video
- Authors
- Wook Joong Kim, Seong Dae Kim, Nam Ho Hur, Jin Woong Kim
- Issue Date
- 2009-02
- Citation
- ETRI Journal, v.31, no.1, pp.1-9
- ISSN
- 1225-6463
- Publisher
- 한국전자통신연구원 (ETRI)
- Language
- English
- Type
- Journal Article
- Abstract
- Frequency domain analysis is a fundamental procedure for understanding the characteristics of visual data. Several studies have been conducted with 2D videos, but analysis of stereoscopic 3D videos is rarely carried out. In this paper, we derive the Fourier transform of a simplified 3D video signal and analyze how a 3D video is influenced by disparity and motion in terms of temporal aliasing. It is already known that object motion affects temporal frequency characteristics of a time-varying image sequence. In our analysis, we show that a 3D video is influenced not only by motion but also by disparity. Based on this conclusion, we present a temporal anti-aliasing filter for a 3D video. Since the human process of depth perception mainly determines the quality of a reproduced 3D image, 2D image processing techniques are not directly applicable to 3D images. The analysis presented in this paper will be useful for reducing undesirable visual artifacts in 3D video as well as for assisting the development of relevant technologies. © 2009 ETRI.
- KSP Keywords
- 2D image, 3D Image, Frequency characteristics, Frequency-Domain Analysis, Human process, Image processing technique, Image sequence, Object motion, Stereoscopic 3D video, Temporal aliasing, Time-varying image