Image interpolation using cosine-sine modulated filter bank

Shunsuke Iwamura; Seisuke Kyochi; Masaaki Ikehara; Naoto Kaneko

doi:10.1109/LASCAS.2010.7410128

Image interpolation using cosine-sine modulated filter bank

Shunsuke Iwamura, Seisuke Kyochi, Masaaki Ikehara, Naoto Kaneko

Department of Electronics and Electrical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

This paper proposes a new image interpolation technique by using direction-aware transform. In literature, it is known that Cosine-Sine modulated filter banks (CSMFB) can be regarded as alternative dual-tree complex wavelet transform, therefore, CSMFB has rich directional selectivity. Our interpolation procedure consists of two stages. First, we generate low frequency image and six directional images from the input image by using 4-channel CSMFB. Then each image is interpolated along with each direction. The simulation results show that our method can produce high visual quality images and improves some artifacts. Moreover, our method is quite feasible from the view point of hardware implementation since there is no branching procedure.

Original language	English
Title of host publication	Proceedings - 2010 1st IEEE Latin American Symposium on Circuits and Systems, LASCAS 2010
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	13-16
Number of pages	4
ISBN (Print)	9781509020768
DOIs	https://doi.org/10.1109/LASCAS.2010.7410128
Publication status	Published - 2016 Feb 17
Event	1st IEEE Latin American Symposium on Circuits and Systems, LASCAS 2010 - Foz do Iguacu, Brazil Duration: 2010 Feb 24 → 2010 Feb 26

Other

Other	1st IEEE Latin American Symposium on Circuits and Systems, LASCAS 2010
Country/Territory	Brazil
City	Foz do Iguacu
Period	10/2/24 → 10/2/26

Keywords

cosine-sine modulated filter banks
Direction-aware transform
image interpolation

ASJC Scopus subject areas

Electrical and Electronic Engineering

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10.1109/LASCAS.2010.7410128

Cite this

Image interpolation using cosine-sine modulated filter bank. / Iwamura, Shunsuke; Kyochi, Seisuke; Ikehara, Masaaki et al.

Proceedings - 2010 1st IEEE Latin American Symposium on Circuits and Systems, LASCAS 2010. Institute of Electrical and Electronics Engineers Inc., 2016. p. 13-16 7410128.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Iwamura, S, Kyochi, S, Ikehara, M & Kaneko, N 2016, Image interpolation using cosine-sine modulated filter bank. in Proceedings - 2010 1st IEEE Latin American Symposium on Circuits and Systems, LASCAS 2010., 7410128, Institute of Electrical and Electronics Engineers Inc., pp. 13-16, 1st IEEE Latin American Symposium on Circuits and Systems, LASCAS 2010, Foz do Iguacu, Brazil, 10/2/24. https://doi.org/10.1109/LASCAS.2010.7410128

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title = "Image interpolation using cosine-sine modulated filter bank",

abstract = "This paper proposes a new image interpolation technique by using direction-aware transform. In literature, it is known that Cosine-Sine modulated filter banks (CSMFB) can be regarded as alternative dual-tree complex wavelet transform, therefore, CSMFB has rich directional selectivity. Our interpolation procedure consists of two stages. First, we generate low frequency image and six directional images from the input image by using 4-channel CSMFB. Then each image is interpolated along with each direction. The simulation results show that our method can produce high visual quality images and improves some artifacts. Moreover, our method is quite feasible from the view point of hardware implementation since there is no branching procedure.",

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AU - Iwamura, Shunsuke

AU - Kyochi, Seisuke

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Y1 - 2016/2/17

N2 - This paper proposes a new image interpolation technique by using direction-aware transform. In literature, it is known that Cosine-Sine modulated filter banks (CSMFB) can be regarded as alternative dual-tree complex wavelet transform, therefore, CSMFB has rich directional selectivity. Our interpolation procedure consists of two stages. First, we generate low frequency image and six directional images from the input image by using 4-channel CSMFB. Then each image is interpolated along with each direction. The simulation results show that our method can produce high visual quality images and improves some artifacts. Moreover, our method is quite feasible from the view point of hardware implementation since there is no branching procedure.

AB - This paper proposes a new image interpolation technique by using direction-aware transform. In literature, it is known that Cosine-Sine modulated filter banks (CSMFB) can be regarded as alternative dual-tree complex wavelet transform, therefore, CSMFB has rich directional selectivity. Our interpolation procedure consists of two stages. First, we generate low frequency image and six directional images from the input image by using 4-channel CSMFB. Then each image is interpolated along with each direction. The simulation results show that our method can produce high visual quality images and improves some artifacts. Moreover, our method is quite feasible from the view point of hardware implementation since there is no branching procedure.

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Image interpolation using cosine-sine modulated filter bank

Abstract

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Keywords

ASJC Scopus subject areas

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