Feature-bit-plane motion estimation using enhanced motion vector

Ahmadianpour, F.; Ahmad, M. Omair

doi:10.1109/itcc.2003.1197583

Cited by 3 publications

(1 citation statement)

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“…We have recently introduced an enhanced motion estimation method under the varying conditions of brightness variations in forward frame prediction which results in more accurate motion vectors, so called enhanced motion vectors [2] [3]. The result of our investigation has shown the efficiency of enhanced motion vectors with different motion compensation schemes including the fixed-size block motion compensation (FSBMC), variable-size block motion compensation (VSBMC) and region-wise motion compensation (RWMC).…”

Section: Introductionmentioning

confidence: 99%

A novel approach for bi-directional motion estimation and compensation

Ahmadianpour

Ahmad

2004

International Conference on Information Technology: Coding and Computing, 2004. Proceedings. ITCC 2004.

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This paper presents a novel bi-directional motion estimation technique, which determines the motion vectors more accurately in situations when there are variations in the inter-frame characteristics due to the changes in the brightness values of the corresponding pixels from frame to frame. The proposed bi-directional motion estimation technique is applied specifically to the fixed-size block, variable-size block and region-wise motion compensation schemes. The proposed method is applied to a number of benchmark video sequences and the results are compared with those obtained by applying the existing methods. These results show that the proposed method can improve the rate-distortion performance. In particular, in situations when there are large variations in the brightness of the corresponding regions from frame to frame, the proposed method improves significantly the rate-distortion performance.

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Section: Introductionmentioning

confidence: 99%

A novel approach for bi-directional motion estimation and compensation

Ahmadianpour

Ahmad

2004

International Conference on Information Technology: Coding and Computing, 2004. Proceedings. ITCC 2004.

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Fast algorithm for motion estimation under the varying interframe brightness characteristics

Ahmadianpour

Ahmad

2005

J. Electron. Imaging

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Novel techniques for reducing blocking artifacts in motion compensated frame

Ahmadianpour¹

2006

J. Electron. Imaging

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We present two new techniques for reducing blocking artifacts in motion compensated frames. These techniques can be applied generally to motion compensated frames obtained by employing any partitioning schemes. In the first technique, the weighting coefficients of the overlapped block motion compensation are modeled with fuzzy relations. These fuzzy relations are formed based on two fuzzy sets, which define the closeness of a given pixel to the block boundaries in the horizontal and vertical directions, respectively. The second technique uses the similarity between a set of pixels inside a partitioned region and that on the borders to modify the border pixels. Simulations conducted on several benchmark video sequences indicate that the proposed techniques can improve the subjective quality of the frames as well as reduce the prediction error. © 2006 SPIE and IS&T.

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Feature-bit-plane motion estimation using enhanced motion vector

Cited by 3 publications

References 5 publications

A novel approach for bi-directional motion estimation and compensation

A novel approach for bi-directional motion estimation and compensation

Fast algorithm for motion estimation under the varying interframe brightness characteristics

Novel techniques for reducing blocking artifacts in motion compensated frame

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