Approximation method for interpolating affine parameters in doubling frame rate

International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS), 2009, page 383 - 386

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Main Authors: Saranta Ponla, Supatana Auethavekiat, Sukanya Phongsuphap
Other Authors: Mahidol University. Faculty of Information and communication technology
Format: Proceeding Article
Language:English
Published: 2018
Subjects:
Online Access:https://repository.li.mahidol.ac.th/handle/123456789/10457
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spelling th-mahidol.104572018-04-03T14:23:16Z Approximation method for interpolating affine parameters in doubling frame rate Saranta Ponla Supatana Auethavekiat Sukanya Phongsuphap Mahidol University. Faculty of Information and communication technology Approximation methods Image reconstruction Interpolation Signal processing Electronic mail Video sequences Motion estimation Computational efficiency International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS), 2009, page 383 - 386 The quality of the frame rate up-conversion depends on the accuracy of the motion parameters. 2D affine model describes the motion better than the popular 2D translation model; however, its parameters are difficult to interpolate. In this paper, the approximation method for interpolating the mid-point of 2D affine parameters is proposed. The affine transform is approximated as the 2D rigid transformation where the target x and y axes are not orthogonal. Trigonometry relationship is applied to interpolate rotational parameters. Conventional linear interpolation is applied to interpolate translational parameters. For video sequences containing complex motion, the reconstruction from the approximated affine parameters gave higher PSNR and visually better result than the one from the interpolated 2D translation parameters. 2018-04-03T07:19:26Z 2018-04-03T07:19:26Z 2018-04-03 2009 Proceeding Article 10.1109/ISPACS.2009.5383822 https://repository.li.mahidol.ac.th/handle/123456789/10457 eng Mahidol University IEEE Xplore
institution Mahidol University
building Mahidol University Library
continent Asia
country Thailand
Thailand
content_provider Mahidol University Library
collection Mahidol University Institutional Repository
language English
topic Approximation methods
Image reconstruction
Interpolation
Signal processing
Electronic mail
Video sequences
Motion estimation
Computational efficiency
spellingShingle Approximation methods
Image reconstruction
Interpolation
Signal processing
Electronic mail
Video sequences
Motion estimation
Computational efficiency
Saranta Ponla
Supatana Auethavekiat
Sukanya Phongsuphap
Approximation method for interpolating affine parameters in doubling frame rate
description International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS), 2009, page 383 - 386
author2 Mahidol University. Faculty of Information and communication technology
author_facet Mahidol University. Faculty of Information and communication technology
Saranta Ponla
Supatana Auethavekiat
Sukanya Phongsuphap
format Proceeding Article
author Saranta Ponla
Supatana Auethavekiat
Sukanya Phongsuphap
author_sort Saranta Ponla
title Approximation method for interpolating affine parameters in doubling frame rate
title_short Approximation method for interpolating affine parameters in doubling frame rate
title_full Approximation method for interpolating affine parameters in doubling frame rate
title_fullStr Approximation method for interpolating affine parameters in doubling frame rate
title_full_unstemmed Approximation method for interpolating affine parameters in doubling frame rate
title_sort approximation method for interpolating affine parameters in doubling frame rate
publishDate 2018
url https://repository.li.mahidol.ac.th/handle/123456789/10457
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