Directional-vector rational filters for color image interpolation

Lazhar Kheriji; M. Gabbouj

doi:10.1109/ICM.1998.825608

Directional-vector rational filters for color image interpolation

Lazhar Kheriji, M. Gabbouj

Electrical and Computer Engineering

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

4 Citations (Scopus)

Abstract

Color image interpolation using Directional-Vector Rational Filters (DVRF) is investigated in this paper. We study this problem (or the upsampling problem) for two decimation schemes that are most commonly used in practice:(l) rectangular decimation (every-other-row and every-other-column sub-sampling) and (2) Quincunx decimation. For each decimation lattice, we present an adaptive re-sampling algorithm using a new nonlinear interpolator, which has desirable properties, such as the preservation of edges and image details, and the preservation of inter-channel correlations. Extensive simulations show that the proposed algorithms using DVRF outperform linear and nonlinear techniques; e.g. vector FIR median hybrid filters (VFMH). Image interpolated using DVRF are free from blockiness and jaggedness.

Original language	English
Title of host publication	Proceedings of the 10th International Conference on Microelectronics, ICM 1998
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	236-240
Number of pages	5
Volume	1998-December
ISBN (Electronic)	0780349695, 9780780349698
DOIs	https://doi.org/10.1109/ICM.1998.825608
Publication status	Published - Jan 1 1998
Event	10th International Conference on Microelectronics, ICM 1998 - Monastir, Tunisia Duration: Dec 14 1998 → Dec 16 1998

Other

Other	10th International Conference on Microelectronics, ICM 1998
Country	Tunisia
City	Monastir
Period	12/14/98 → 12/16/98

ASJC Scopus subject areas

Information Systems
Electrical and Electronic Engineering

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10.1109/ICM.1998.825608

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Kheriji, L & Gabbouj, M 1998, Directional-vector rational filters for color image interpolation. in Proceedings of the 10th International Conference on Microelectronics, ICM 1998. vol. 1998-December, 825608, Institute of Electrical and Electronics Engineers Inc., pp. 236-240, 10th International Conference on Microelectronics, ICM 1998, Monastir, Tunisia, 12/14/98. https://doi.org/10.1109/ICM.1998.825608

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abstract = "Color image interpolation using Directional-Vector Rational Filters (DVRF) is investigated in this paper. We study this problem (or the upsampling problem) for two decimation schemes that are most commonly used in practice:(l) rectangular decimation (every-other-row and every-other-column sub-sampling) and (2) Quincunx decimation. For each decimation lattice, we present an adaptive re-sampling algorithm using a new nonlinear interpolator, which has desirable properties, such as the preservation of edges and image details, and the preservation of inter-channel correlations. Extensive simulations show that the proposed algorithms using DVRF outperform linear and nonlinear techniques; e.g. vector FIR median hybrid filters (VFMH). Image interpolated using DVRF are free from blockiness and jaggedness.",

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N2 - Color image interpolation using Directional-Vector Rational Filters (DVRF) is investigated in this paper. We study this problem (or the upsampling problem) for two decimation schemes that are most commonly used in practice:(l) rectangular decimation (every-other-row and every-other-column sub-sampling) and (2) Quincunx decimation. For each decimation lattice, we present an adaptive re-sampling algorithm using a new nonlinear interpolator, which has desirable properties, such as the preservation of edges and image details, and the preservation of inter-channel correlations. Extensive simulations show that the proposed algorithms using DVRF outperform linear and nonlinear techniques; e.g. vector FIR median hybrid filters (VFMH). Image interpolated using DVRF are free from blockiness and jaggedness.

AB - Color image interpolation using Directional-Vector Rational Filters (DVRF) is investigated in this paper. We study this problem (or the upsampling problem) for two decimation schemes that are most commonly used in practice:(l) rectangular decimation (every-other-row and every-other-column sub-sampling) and (2) Quincunx decimation. For each decimation lattice, we present an adaptive re-sampling algorithm using a new nonlinear interpolator, which has desirable properties, such as the preservation of edges and image details, and the preservation of inter-channel correlations. Extensive simulations show that the proposed algorithms using DVRF outperform linear and nonlinear techniques; e.g. vector FIR median hybrid filters (VFMH). Image interpolated using DVRF are free from blockiness and jaggedness.

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Directional-vector rational filters for color image interpolation

Abstract

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