NDLI: The Study of Image Definition Evaluation Function Based on Wavelet Filter

Content Provider	IEEE Xplore Digital Library
Author	Chen Guojin Zhu Miaofen Qiu Xiaoguang
Copyright Year	2007
Description	Author affiliation: Hangzhou Dianzi Univ., Hangzhou (Chen Guojin; Zhu Miaofen; Qiu Xiaoguang)
Abstract	The auto-focus method based on digital image processing results from the innovation of the traditional auto-focus method. Generally speaking, the traditional auto-focus method needs extra focus equipment and can be disturbed easily by environment factors. So the application of the traditional auto- focus method is limited hugely. The auto-focus method based on digital image processing is usually achieved by image definition evaluation functions. The paper studies the structure of two-dimension minimum isotropy wavelet filters and propounds the image definition evaluation based on a wavelet filter. In the paper, the evaluation function based on the wavelet filter is compared with the evaluation function based on the Laplacian operator by using the auto-focus system of a microscope. The experiment results indicate that the auto-focus algorithm based on the isotropy wavelet filter has good performance.
Starting Page	131
Ending Page	134
File Size	588799
Page Count	4
File Format	PDF
ISBN	9781424408191
DOI	10.1109/VECIMS.2007.4373942
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-06-25
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Image edge detection Digital images Finite impulse response filter IIR filters Frequency Space technology Digital filters Hardware Costs Interpolation edge extracting auto-focus image definition evaluation function two-dimension minimum isotropy wavelet filter microscope image pretreatment
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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The Study of Image Definition Evaluation Function Based on Wavelet Filter

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