| 基于DSP的自动调焦系统 |
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| 引用本文： | 蔡昌金, 朱明,. 基于DSP的自动调焦系统[J]. 电子器件, 2007, 30(1): 297-299 |
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| 作者姓名： | 蔡昌金 朱明 |
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| 作者单位： | 1. 中国科学院长春光学精密机械与物理研究所,长春,130033;中国科学院研究生院,北京,100039
2. 中国科学院长春光学精密机械与物理研究所,长春,130033 |
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| 摘 要： | 由于数字图像处理理论的逐渐成熟和完善,现今的自动调焦系统已由原基于光学系统的自动调焦转换为基于各种数字图像处理方法的自动调焦.由此介绍一种基于DSP芯片TMS320C6416为核心处理器进行图像采集、预处理和实施控制的自动调焦系统.TMS320C6416芯片的总体性能可比C62xx提高一个数量级.重点说明了该实时数字图像处理系统的硬件组成、工作原理和软件算法.结果表明该系统具有高度的实时性和稳定性,能够快速准确的完成自动调焦.
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| 关 键 词： | 图像处理 自动调焦 DSP 评价函数 |
| 文章编号： | 1005-9490（2007）01-0297-03 |
| 修稿时间： | 2006-03-03 |
Auto-Focusing System Based on DSP |
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| CAI Chang-jin~,ZHU Ming~. Auto-Focusing System Based on DSP[J]. Journal of Electron Devices, 2007, 30(1): 297-299 |
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| Authors: | CAI Chang-jin~ ZHU Ming~ |
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| Affiliation: | 1, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China;2, Graduate School of the Chinese Academy of Sciences, Beijing 100039, China |
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| Abstract: | Due to the development of digital image process theory, auto-focusing system is changed from optic to digital image process now. An auto-focusing system including the functions of image sampling, preprocessing and real-time control is introduced. This system bases on the core digital signal processor chipset TMS320C6416. The hardware, principles and algorithms of this real-time digital image processing system are presented. The result indicates that the system has good properties of real time, stability and auto-focusing fast and exactly. |
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| Keywords: | image process auto-focusing Digital Signal Processor evaluated function |
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