| 数字对焦光场成像清晰度评价方法研究 |
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| 引用本文： | 周宇,袁艳,胡煌华,张修宝.数字对焦光场成像清晰度评价方法研究[J].光子学报,2014,39(6):1094-1098. |
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| 作者姓名： | 周宇 袁艳 胡煌华 张修宝 |
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| 作者单位： | (北京航空航天大学 精密光机电一体化技术教育部重点实验室,北京 100191) |
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| 基金项目： | 国家高技术研究发展计划、国家自然科学基金（60972088）、长江学者和创新团队发展计划（IRT0705）资助 |
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| 摘 要： | 结合光场成像数字对焦空间域算法和频率域算法的区别,分别提出了适用的图像清晰度评价方式,并进行了仿真实验分析.空间域评价方法根据评价区域缩小图像重构数据量,频率域评价方法则将评价函数嵌入到图像重构过程中,改进后的方法相对传统方法提高了速度.
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| 关 键 词： | 光场成像 数字对焦 对焦清晰度评价 |
| 收稿时间： | 2008-09-27 |
Focusness Evaluation for Digital Refocusing Light Field Photography |
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| ZHOU Yu,YUAN Yan,HU Huang-Hua,ZHANG Xiu-Bao.Focusness Evaluation for Digital Refocusing Light Field Photography[J].Acta Photonica Sinica,2014,39(6):1094-1098. |
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| Authors: | ZHOU Yu YUAN Yan HU Huang-Hua ZHANG Xiu-Bao |
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| Institution: | (Key Laboratory of Precision Opto-mechatronics Technology,Ministry of Education,Beihang University,
Beijing 100191,China) |
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| Abstract: | The focusness detection methods for digital refocusing both in spatial and frequency domain are presented.The spatial method reduces the data used in image reconstruction according to the selected evaluation area.And the frequency domain method embeds the evaluation functions in image reconstruction.The experimental results show that the improved methods are faster than the conventional. |
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| Keywords: | Light field photography Digital refocusing Focusness evaluation |
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