| DSP图像处理技术在空间瞬态光辐射定位探测中的应用 |
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| 引用本文： | 王华,汶德胜. DSP图像处理技术在空间瞬态光辐射定位探测中的应用[J]. 光子学报, 2006, 35(8): 1272-1275 |
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| 作者姓名： | 王华 汶德胜 |
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| 作者单位： | 中科院西安光学精密机械研究所,西安,710068;中国科学院研究生院,北京,100039;中科院西安光学精密机械研究所,西安,710068 |
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| 摘 要： | 在分析空间瞬态光辐射信号成像特点的基础上,提出了一种在空间瞬态光辐射信号定位系统中，用高速浮点DSP芯片实现图像处理的方案.图像处理过程为：首先通过阈值分割滤除背景和弱噪音；然后根据目标信号的时空连续性进行目标识别以去除强噪音；最后对识别出的目标像点进行重心位置的提取.实验表明，该硬件图像处理方案具有高的实时处理性和定位准确性，可以很好的满足系统要求.
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| 关 键 词： | 瞬态光信号 DSP 阈值 目标识别 重心 |
| 收稿时间： | 2005-06-09 |
| 修稿时间： | 2005-06-09 |
Application of imaging processing implemented by DSP in Spacial Transient Optical Signal Locating System |
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| Wang Hua,Wen Desheng. Application of imaging processing implemented by DSP in Spacial Transient Optical Signal Locating System[J]. Acta Photonica Sinica, 2006, 35(8): 1272-1275 |
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| Authors: | Wang Hua Wen Desheng |
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| Affiliation: | (1 Xi′an Institute of Optics and Precision Mechanics,Chinese Academy of Science,Xi′an 710068 )
(2 Graduate School of The Chinese Academy Sciences, Bejing 100039) |
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| Abstract: | The imaging characteristics of spacial transient optical signal are introduced. A digital image processing method based on the high-speed Digital Signal Processor for spacial transient optical signal locating is proposed in this paper. The image processing procedure includes filtrating the background and weak noises by threshold segmentation,removing the strong noises by target recognition based on the continuity of target signal and calculating the centroid of target signal at last. Experiment results show that processing speed and measurement accuracy of this method are high,and can satisfy the request of locating system. |
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| Keywords: | Transient optical signal Digital signal processing Threshold Target recognition Centroid |
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