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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Pei-Yung Hsiao Chia-Hsiung Chen Shin-Shian Chou Le-Tien Li Sao-Jie Chen |
| Copyright Year | 2006 |
| Description | Author affiliation: Dept. of Electron. Eng., Chang Gung Univ., Tao Yuan (Pei-Yung Hsiao) |
| Abstract | This paper describes a 5times5 window-based, power-of-two approximation algorithm for 2D Gaussian smoothing filter and its generic hardware reference design. With a small change in standard deviation sigma, the Gaussian smoothing filter is able to provide different levels of smoothing and noise reduction capability, which is highly desirable in the early stage of an image processing flow. By using power-of-two terms, the digital-approximated 2D Gaussian filter can be implemented by simple hardware shifters. A hardware reference design is also proposed to achieve such functionality. Experiments in using the proposed filter with an existing edge detection algorithm show the flexibility and effectiveness of the proposed smoothing mask. The synthesized hardware of such combination shows a 200MHz high operating frequency under UMC 0.18mum technology, which proves the proposed filter is able to achieve the real-time high frame-rate and high-resolution video processing requirements |
| Sponsorship | The Inst. of Electr. and Electron. Eng., Inc. Circuits and Syst. Soc. (IEEE CASS) |
| File Size | 3214864 |
| File Format | |
| ISBN | 0780393899 |
| DOI | 10.1109/ISCAS.2006.1693303 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2006-05-21 |
| Publisher Place | Greece |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Smoothing methods Digital filters Image edge detection Gaussian noise Hardware Approximation algorithms Change detection algorithms Algorithm design and analysis Noise reduction Image processing |
| Content Type | Text |
| Resource Type | Article |
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