Three-dimensional wavelet coding of video with global motion compensation

Wang, A.; Xiong, Zixiang; Chou, Philip A.; Mehrotra, Sanjeev

doi:10.1109/dcc.1999.755690

Cited by 41 publications

(31 citation statements)

References 18 publications

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“…Motion threading is conceptually very similar to global motion compensation in [10]. Instead of warping a sequence of pictures into a 3-D volume with AROS, which requires extra memory for buffering, we form threads along the motion trajectories in a scene.…”

Section: Basic Idea Of Motion Threadingmentioning

confidence: 99%

“…In a different approach, Wang et al [10] apply global motion compensation to warp each picture into a common coordinate system. The sequence of warped pictures forms a 3-D volume with an arbitrary region of support (AROS).…”

Section: Motivationmentioning

confidence: 99%

“…This can be viewed as computing the 3-D wavelet transform of a regular volume filled with 3-D motion threads of different lengths. Using motion threading not only saves memory, but also avoids the need for post-warp resampling, which causes a loss of roughly 0.7 dB in coding performance [10].…”

Section: Basic Idea Of Motion Threadingmentioning

confidence: 99%

“…As an alternative to the predictive approaches in various video coding standards, three-dimensional wavelet video coding has been investigated recently by several researchers [6][7][8][9][10] and shown to be competitive with standard motion compensated (MC) predictive coding. Although 3-D wavelet video coders usually require a larger buffer and incur a longer delay than standard coders, an important feature of the 3-D wavelet approach is the support of scalability in the compressed video.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Three-Dimensional Embedded Subband Coding with Optimized Truncation (3-D ESCOT)

Xu¹,

Xiong

Li³

et al. 2001

Applied and Computational Harmonic Analysis

162

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This paper presents an efficient video coding algorithm: Three-dimensional embedded subband coding with optimized truncation (3-D ESCOT), in which coefficients in different subbands are independently coded using fractional bit-plane coding and candidate truncation points are formed at the end of each fractional bit-plane. A rate-distortion optimized truncation scheme is used to multiplex all subband bitstreams together into a layered one. A novel motion threading technique is proposed to form threads along the motion trajectories in a scene. For efficient coding of motion threads, memory-constrained temporal wavelet transforms are applied along entire motion threads. Block-based motion threading is implemented in conjunction with 3-D ESCOT in a real video coder. Extension of 3-D ESCOT to object-based coding is also addressed. Experiments demonstrate that 3-D ESCOT outperforms MPEG-4 for most test sequences at the same bit rate. 

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Section: Basic Idea Of Motion Threadingmentioning

confidence: 99%

Section: Motivationmentioning

confidence: 99%

Section: Basic Idea Of Motion Threadingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Three-Dimensional Embedded Subband Coding with Optimized Truncation (3-D ESCOT)

Xu¹,

Xiong

Li³

et al. 2001

Applied and Computational Harmonic Analysis

162

View full text Add to dashboard Cite

show abstract

“…Akiyama et al use global motion compensation and threedimensional transform coding [ATT90]. Global motion compensation with 3D wavelet coding is also investigated by Chou et al in [WXCM99]. Zhang and Zafar present a motion-compensated wavelet transform coder for color video compression [ZZ92].…”

Section: Motion Compensation and Subband Codingmentioning

confidence: 99%

Video Coding with Superimposed Motion-Compensated Signals

Flierl¹

2004

The International Series in Engineering and Computer Science

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Computationally Efficient MCTF for MC-EZBC Scalable Video Coding Framework

Karunakar

Pai

Lecture Notes in Computer Science

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The discrete wavelet transforms (DWTs) applied temporally under motion compensation (i.e. Motion Compensation Temporal Filtering (MCTF)) has recently become a very powerful tool in scalable video compression, especially when implemented through lifting. The major bottleneck for speed of the encoder is the computational complexity of the bidirectional motion estimation in MCTF. This paper proposes a novel predictive technique to reduce the computational complexity of MCTF. In the proposed technique the temporal filtering is done without motion compensation. The resultant high frequency frames are used to predict the blocks under motion. Motion estimation is carried out only for the predicted blocks under motion. This significantly reduces the number of blocks that undergoes motion estimation and hence the computationally complexity of MCTF is reduced by 44% to 92% over variety of standard test sequences without compromising the quality of the decoded video. The proposed algorithm is implemented in MC-EZBC, a 3D-subband scalable video coding system.

show abstract

Three-dimensional wavelet coding of video with global motion compensation

Cited by 41 publications

References 18 publications

Three-Dimensional Embedded Subband Coding with Optimized Truncation (3-D ESCOT)

Three-Dimensional Embedded Subband Coding with Optimized Truncation (3-D ESCOT)

Video Coding with Superimposed Motion-Compensated Signals

Computationally Efficient MCTF for MC-EZBC Scalable Video Coding Framework

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