3D video coding using redundant-wavelet multihypothesis and motion-compensated temporal filtering

Wang, Y.; Cui, Suxia; Fowler, James E.

doi:10.1109/icip.2003.1246790

Cited by 17 publications

(14 citation statements)

References 14 publications

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“…Secondgeneration 3D wavelet/subband video coders attempt to couple wavelet and motion compensation (MC) in a more sophisticated fashion. Based on the order of performing spatial and temporal filtering, we classify second-generation coders into two categories: 3D motion-compensated subband coding [4,6,11] (temporal filtering followed by spatial transform) and overcomplete motion compensated wavelet coding (OMCWC) [13,14,20,28,31,37,38] (spatial transform followed by temporal filtering).…”

Section: Introductionmentioning

confidence: 99%

Scalable video compression via overcomplete motion compensated wavelet coding

2004

Signal Processing: Image Communication

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Section: Introductionmentioning

confidence: 99%

Scalable video compression via overcomplete motion compensated wavelet coding

2004

Signal Processing: Image Communication

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“…Our previous work successfully developed a coder that deployed the ME/MC by using the multiple predictions in RDWT domain. We name our system redundant wavelet multihypothesis (RWMH) [6,7]. That is an contribution to the multihypothesis motion compensation (MHMC) [8] by extending the different hypothesis into transform domain.…”

Section: Introductionmentioning

confidence: 99%

Combining phase-diversity with spatial-diversity multihypothesis motion compensation

Cui

Wang

Flowler³

2005

48th Midwest Symposium on Circuits and Systems, 2005.

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Abstract-Discrete Wavelet Transform (DWT) has been proved to be a very efficient tool for data compression. Redundant Wavelet Transform (RDWT) conquers the "shift-variant" problem in DWT and enables the motion estimation and motion compensation (ME/MC) in wavelet domain. Also, RDWT produces growing number of phases at each level of the transform, each phase contributes to the ME/MC procedure by providing a unique hypothesis. Based on the previous successful usage of phase-diversity multihypothesis in redundant wavelet transform domain, this paper presents a technique to combine the spatial-diversity multihypothesis with the transform domain multihypothesis. We take the overlapped block motion compensation (OBMC) as one example from spatial domain multihypothesis. Experiment results show that the combination of the two classes of multihypothesis outperforms either method implemented alone. Further more, choose different subbands for OBMC in order to simplify the system is also discussed.

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“…The structure of Figure 3 is used for compression.  Video compression using Redundant Discrete Wavelet Transform (RDWT) algorithm [18]. We tested the algorithms with the Coastguard, Motor, Snake, Nascar, Foreman, Mother, Akiyo, Hall, Silent and boat videos.…”

Section: The Proposed Video Compression Algorithmmentioning

confidence: 99%

Video Compression USING a New Active Mesh Based Motion Compensation Algorithm in Wavelet Sub-Bands

Bisjerdi¹,

Behrad²

2012

JSIP

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In this paper, a new mesh based algorithm is applied for motion estimation and compensation in the wavelet domain. The first major contribution of this work is the introduction of a new active mesh based method for motion estimation and compensation. The proposed algorithm is based on the mesh energy minimization with novel sets of energy functions. The proposed energy functions have appropriate features, which improve the accuracy of motion estimation and compensation algorithm. We employ the proposed motion estimation algorithm in two different manners for video compression. In the first approach, the proposed algorithm is employed for motion estimation of consecutive frames. In the second approach, the algorithm is applied for motion estimation and compensation in the wavelet sub-bands. The experimental results reveal that the incorporation of active mesh based motion-compensated temporal filtering into wavelet sub-bands significantly improves the distortion performance rate of the video compression. We also use a new wavelet coder for the coding of the 3D volume of coefficients based on the retained energy criteria. This coder gives the maximum retained energy in all sub-bands. The proposed algorithm was tested with some video sequences and the results showed that the use of the proposed active mesh method for motion compensation and its implementation in sub-bands yields significant improvement in PSNR performance.

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3D video coding using redundant-wavelet multihypothesis and motion-compensated temporal filtering

Cited by 17 publications

References 14 publications

Scalable video compression via overcomplete motion compensated wavelet coding

Scalable video compression via overcomplete motion compensated wavelet coding

Combining phase-diversity with spatial-diversity multihypothesis motion compensation

Video Compression USING a New Active Mesh Based Motion Compensation Algorithm in Wavelet Sub-Bands

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