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Proceedings Paper

A hybrid interpolation method edge-preserving for passive millimeter wave images
Author(s): Hai Liu; Luxin Yan; Tianxu Zhang; Mingzhi Jin
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Paper Abstract

This paper deals with edge-preserving interpolation for passive millimeter wave images with poor resolution and low SNR. A hybrid interpolation method basing on image decomposition via bilateral filtering is proposed. The low resolution and noisy image is first decomposed using the bilateral filter into the base and detail layers which represent large and small scale features, respectively. The base layer contains the large-scale structures and nearly frees with noise thus has the higher SNR, whereas the detail layer includes both small-scale details and noise and has the lower SNR. The detail layer is adaptively denoised by the joint bilateral filtering method and subsequently interpolated with edge preservation in the guidance of the base layer. The base layer is interpolated with edge-preserving method directly. Finally, the high resolution image is obtained by combining the base and detail layers. Experimental results show that the proposed method outperforms the conventional methods while preserving edges and suppressing jagging thus is suited for PMMW images interpolation to enhance resolution.

Paper Details

Date Published: 8 December 2011
PDF: 8 pages
Proc. SPIE 8002, MIPPR 2011: Multispectral Image Acquisition, Processing, and Analysis, 80021L (8 December 2011); doi: 10.1117/12.902131
Show Author Affiliations
Hai Liu, Huazhong Univ. of Science and Technology (China)
Luxin Yan, Huazhong Univ. of Science and Technology (China)
Tianxu Zhang, Huazhong Univ. of Science and Technology (China)
Mingzhi Jin, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 8002:
MIPPR 2011: Multispectral Image Acquisition, Processing, and Analysis
Faxiong Zhang; Faxiong Zhang, Editor(s)

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