Article: An improved motion estimation criterion for temporal coding of video Journal: International Journal of Computational Science and Engineering (IJCSE) 2022 Vol.25 No.3 pp.308 - 314 Abstract: The size of video data is growing exponentially worldwide and hence there is a need for better video coding standards. MPEG and H.26X have provided several standards for video coding. The latest and effective video coding standards are AVC, HEVC, and AV1. MPEG and H.26X, which employ block matching approaches for temporal coding and the mean absolute difference (MAD) is commonly used as the block matching parameter. MAD is very simple and there is very little complexity in its implementation, but sometimes MAD results in spurious selection of matched block due to different transformations in sequential images and the noise introduced in the frame. To overcome this problem there have been many different matching criteria like vector matching criterion (VMC), smooth constrained mean absolute error (SCMAE) based on DCT, and scaled value criterion (SVC) based on modified pixel values. Criteria described thus far do not take into account the noise generated in the frame, resulting in inaccurate block selection or rejection. A novel motion estimating criterion is proposed in this study and compared to the previous four criteria in terms of PSNR, the average number of assessed search points for every block, and mean MAD for every picture. The suggested matching criterion improves assessed number of search points by about 33.92%, PSNR value by about 9% and average of MAD per pixel by about 70%. Inderscience Publishers - linking academia, business and industry through research

Title: An improved motion estimation criterion for temporal coding of video

Authors: Awanish Kumar Mishra; Narendra Kohli

Addresses: Department of Computer Science and Engineering, Harcourt Butler Technical University, Kanpur, India ' Department of Computer Science and Engineering, Harcourt Butler Technical University, Kanpur, India

Abstract: The size of video data is growing exponentially worldwide and hence there is a need for better video coding standards. MPEG and H.26X have provided several standards for video coding. The latest and effective video coding standards are AVC, HEVC, and AV1. MPEG and H.26X, which employ block matching approaches for temporal coding and the mean absolute difference (MAD) is commonly used as the block matching parameter. MAD is very simple and there is very little complexity in its implementation, but sometimes MAD results in spurious selection of matched block due to different transformations in sequential images and the noise introduced in the frame. To overcome this problem there have been many different matching criteria like vector matching criterion (VMC), smooth constrained mean absolute error (SCMAE) based on DCT, and scaled value criterion (SVC) based on modified pixel values. Criteria described thus far do not take into account the noise generated in the frame, resulting in inaccurate block selection or rejection. A novel motion estimating criterion is proposed in this study and compared to the previous four criteria in terms of PSNR, the average number of assessed search points for every block, and mean MAD for every picture. The suggested matching criterion improves assessed number of search points by about 33.92%, PSNR value by about 9% and average of MAD per pixel by about 70%.

Keywords: motion estimation; matching criterion; block matching; search window; source block.

DOI: 10.1504/IJCSE.2022.123120

International Journal of Computational Science and Engineering, 2022 Vol.25 No.3, pp.308 - 314

Received: 17 Sep 2020
Accepted: 31 Jul 2021
Published online: 30 May 2022 *

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Title: An improved motion estimation criterion for temporal coding of video

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