In this paper, we propose a method of resizing images in the integer DCT domain employed by H.264/AVC. To accomplish this, we first derive the matrix scaling the image resolution, and then factorize the scaled DCT blocks and the post scaling factors (PF) from the matrix obtained from the multiplication of the scaling matrix and the original integer DCT blocks. Then, we separate the scaled DCT blocks into the integer scaling matrix and the scaled integer DCT blocks. The experiments show that the proposed method produces nearly the same performance as those operating in the real DCT domain.
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Hyungsuk OH, Wonha KIM, Jeong Geun KIM, "Image Resizing on the Integer DCT Domain Used in H.264/AVC" in IEICE TRANSACTIONS on Communications,
vol. E91-B, no. 5, pp. 1599-1607, May 2008, doi: 10.1093/ietcom/e91-b.5.1599.
Abstract: In this paper, we propose a method of resizing images in the integer DCT domain employed by H.264/AVC. To accomplish this, we first derive the matrix scaling the image resolution, and then factorize the scaled DCT blocks and the post scaling factors (PF) from the matrix obtained from the multiplication of the scaling matrix and the original integer DCT blocks. Then, we separate the scaled DCT blocks into the integer scaling matrix and the scaled integer DCT blocks. The experiments show that the proposed method produces nearly the same performance as those operating in the real DCT domain.
URL: https://global.ieice.org/en_transactions/communications/10.1093/ietcom/e91-b.5.1599/_p
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@ARTICLE{e91-b_5_1599,
author={Hyungsuk OH, Wonha KIM, Jeong Geun KIM, },
journal={IEICE TRANSACTIONS on Communications},
title={Image Resizing on the Integer DCT Domain Used in H.264/AVC},
year={2008},
volume={E91-B},
number={5},
pages={1599-1607},
abstract={In this paper, we propose a method of resizing images in the integer DCT domain employed by H.264/AVC. To accomplish this, we first derive the matrix scaling the image resolution, and then factorize the scaled DCT blocks and the post scaling factors (PF) from the matrix obtained from the multiplication of the scaling matrix and the original integer DCT blocks. Then, we separate the scaled DCT blocks into the integer scaling matrix and the scaled integer DCT blocks. The experiments show that the proposed method produces nearly the same performance as those operating in the real DCT domain.},
keywords={},
doi={10.1093/ietcom/e91-b.5.1599},
ISSN={1745-1345},
month={May},}
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TY - JOUR
TI - Image Resizing on the Integer DCT Domain Used in H.264/AVC
T2 - IEICE TRANSACTIONS on Communications
SP - 1599
EP - 1607
AU - Hyungsuk OH
AU - Wonha KIM
AU - Jeong Geun KIM
PY - 2008
DO - 10.1093/ietcom/e91-b.5.1599
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E91-B
IS - 5
JA - IEICE TRANSACTIONS on Communications
Y1 - May 2008
AB - In this paper, we propose a method of resizing images in the integer DCT domain employed by H.264/AVC. To accomplish this, we first derive the matrix scaling the image resolution, and then factorize the scaled DCT blocks and the post scaling factors (PF) from the matrix obtained from the multiplication of the scaling matrix and the original integer DCT blocks. Then, we separate the scaled DCT blocks into the integer scaling matrix and the scaled integer DCT blocks. The experiments show that the proposed method produces nearly the same performance as those operating in the real DCT domain.
ER -