Adaptive Double-Layered Initial Search Pattern for Fast Motion Estimation

Yu, Chong-Shou; Tai, Shen-Chuan

doi:10.1109/tmm.2006.884635

Cited by 17 publications

(4 citation statements)

References 11 publications

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“…In this context, it is proposed in this paper a low-complexity FI technique called fast motion compensated interpolation (FMCI); the FMCI technique is inspired in a fast motion estimation algorithm proposed in [6]. In the FMCI search stage, a maximum of 3 search patterns (P) may be evaluated.…”

Section: Fast Motion Compensated Interpolation (Fmci)mentioning

confidence: 99%

Encoder Rate Control for Transform Domain Wyner-Ziv Video Coding

Brites

Pereira

2007

2007 IEEE International Conference on Image Processing

104

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Wyner-Ziv (WZ) video coding -a particular case of distributed video coding (DVC) -is a new video coding paradigm based on two major Information Theory results: the Slepian-Wolf and Wyner-Ziv theorems. Many of the practical WZ video coding solutions available in the literature make use of a feedback channel (FC) to perform rate control at the decoder which implies there must be a FC available in the application scenario addressed. The FC-based DVC solutions also have implications in terms of delay and decoder complexity since several iterative decoding operations may be needed to decode the data to the target quality level. In this context, this paper proposes an encoder rate control (ERC) solution for the transform domain WZ coding architecture previously using a FC driven rate control. Although this is the first solution in the literature, promising results are achieved with the proposed ERC solution without significantly increase the encoder complexity.

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Section: Fast Motion Compensated Interpolation (Fmci)mentioning

confidence: 99%

Encoder Rate Control for Transform Domain Wyner-Ziv Video Coding

Brites

Pereira

2007

2007 IEEE International Conference on Image Processing

104

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“…MSE, mean square error increase ratio (MSEIR), mean checking points per block (CheckPT), and speed-up ratio (SPDUP) comparisons are listed for each algorithm, where MESIR is defined in [24] by MSEIR ¼ (MSE of fast algorithmÀMSE of Full Search)/MSE of Full Search. (1) Experimental results are listed in Tables 2-7.…”

Section: Resultsmentioning

confidence: 99%

Small-diamond-based search algorithm for fast block motion estimation

Tai

Chen

2007

Signal Processing: Image Communication

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“…Either small diamond search (SDS) or 3SS will be selected for subsequent search according to the motion content classification. Adaptive double-layered initial search pattern algorithm [12] also uses the initial search pattern as the classifier. Geometric motion classifier uses a large number of initial search points.…”

Section: B Geometric Motion Content Classifiermentioning

confidence: 99%

A Search Patterns Switching Algorithm for Block Motion Estimation

Wong

et al. 2009

IEEE Trans. Circuits Syst. Video Technol.

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Abstract-Center-biased fast motion estimation algorithms, e.g., block-based gradient descent search and diamond search, can perform much better than coarse-to-fine search algorithms, such as 2-D logarithmic search and three-step search. The latter type of algorithms, however, is more suitable for handling large motion content. To combine the advantages of both types of algorithms, an adaptive algorithm performing search patterns switching (SPS) is proposed in this paper. The proposed SPS algorithm classifies the motion content of a block using a simple yet efficient motion content classifier called error descent rate. Unlike other classifiers with heavy overhead, this classifier requires only the searching of a few points in the search window and then a division operation. Experimental results show that the proposed SPS algorithm is very robust.

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Adaptive Double-Layered Initial Search Pattern for Fast Motion Estimation

Cited by 17 publications

References 11 publications

Encoder Rate Control for Transform Domain Wyner-Ziv Video Coding

Encoder Rate Control for Transform Domain Wyner-Ziv Video Coding

Small-diamond-based search algorithm for fast block motion estimation

A Search Patterns Switching Algorithm for Block Motion Estimation

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