Study on the Evaluation Model of Image Definition

Guo Jin Chen; Miao Fen Zhu; Wan Qiang Wang; Yong Ning Li

doi:10.4028/www.scientific.net/AMM.20-23.636

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 20-23Study on the Evaluation Model of Image Definition

Study on the Evaluation Model of Image Definition

Abstract:

At present, the usual image definition evaluation methods are poor in focusing precision and have a lot of calculations. In view of these problems, the paper analyzed the factors affecting an image quality evaluation, and proposed two evaluation models based on an image contrast change rate and an autocorrelation function. These methods avoided efficiently the phenomenon of partial peaks of focusing-function curves for noise disturbing. The stimulant test proves that the focusing curve of the evaluation model in the paper has many advantages, such as good focusing performance, strong antijamming ability, good real time and so on.

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Periodical:

Applied Mechanics and Materials (Volumes 20-23)

Pages:

636-640

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.20-23.636

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Online since:

January 2010

Authors:

Guo Jin Chen, Miao Fen Zhu, Wan Qiang Wang, Yong Ning Li

Keywords:

Auto Focusing, Autocorrelation Function, Gray-Scale Contrast Change Rate, Image Definition

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