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Content Provider | IEEE Xplore Digital Library |
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Author | Karunakar, A.K. Manohara Pai, M.M. |
Copyright Year | 2006 |
Description | Author affiliation: Manipal Inst. of Technol., Manipal (Karunakar, A.K.; Manohara Pai, M.M.) |
Abstract | The discrete wavelet transforms (DWTs) applied temporally under motion compensation (MC) has recently become a very powerful tool in scalable video compression, especially when implemented through lifting. Due to bidirectional motion estimation in Motion Compensated Temporal Filtering (MCTF) framework the scalable encoder turns out to be very slow. Temporal filtering without motion compensation produces blur in the low frequency frames wherever there is a motion hence does not support temporal scalability. This paper proposes a technique that does temporal filtering without motion compensation to produce high frequency frame. The motion blocks are identified using the content of the high frequency frame and MCTF is applied only to those blocks. By applying motion estimation only to the selected blocks the technique significantly improves the speed of the encoder. In slow motion test video sequences the proposed technique performs well without compromising the quality of the video and in remaining classes of videos its complexity is reduced compared to the conventional MCTF. |
Starting Page | 487 |
Ending Page | 492 |
File Size | 232028 |
Page Count | 6 |
File Format | |
ISBN | 142440715X |
DOI | 10.1109/ADCOM.2006.4289941 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2006-12-20 |
Publisher Place | India |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Video coding Filtering Motion estimation Scalability Video sequences Motion Compensated Temporal Filtering Discrete wavelet transforms Temporal Filtering Motion Estimation Video compression Frequency Motion compensation Testing |
Content Type | Text |
Resource Type | Article |
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