MULTI-LEVEL FILTER FOR INFRARED IMAGE PROCESSING

This paper presents a new multi-level filter algorithm and its corresponding VLSI architecture for infrared image processing. The algorithm eliminates the phenomena of splitting targets by inserting Gaussian pyramid processing. Owning three filter paths, the proposed filter VLSI architecture can enh...

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Bibliographic Details
Published in:International journal of infrared and millimeter waves 2006-12, Vol.27 (12), p.1625-1637
Main Authors: Zheng, Zhaoqing, Zhang, Tianxu, Shen, Xubang
Format: Article
Language:English
Subjects:
Algorithms
Background noise
Gaussian process
Image enhancement
Image filters
Image processing
Infrared filters
Infrared imagery
Integrated circuits
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Summary:This paper presents a new multi-level filter algorithm and its corresponding VLSI architecture for infrared image processing. The algorithm eliminates the phenomena of splitting targets by inserting Gaussian pyramid processing. Owning three filter paths, the proposed filter VLSI architecture can enhance small targets with different size in infrared images. This architecture has been implemented using SMIC 0.35μm 4-layer CMOS technology. The test result shows that the filter chip not only effectively suppresses background, eliminates noise and enhances small targets in an infrared image, but also meets infrared image real-time processing requirement(5M ∼ 10M pixels/s). The implemented filter chip consists of 60,284 gates and 8K SRAM, operates at 50MHz.
ISSN:0195-9271
1866-6892
1572-9559
1866-6906
DOI:10.1007/s10762-006-9167-7