| 基于器官跟踪的人脸实时跟踪方法 |
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| 引用本文： | 保铮,孙长印,邢孟道.基于器官跟踪的人脸实时跟踪方法[J].电子学报,2000,28(6):24-28. |
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| 作者姓名： | 保铮 孙长印 邢孟道 |
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| 作者单位： | 北京工业大学信号与信息处理研究室,北京 100022 |
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| 基金项目： | 国家自然科学基金!(No.69831 0 4 0 )资助课题，电科院国防科技预研基金!(No .7.4 .2 .1 )资助课题 |
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| 摘 要： | 头肩序列图像的人脸跟踪有着广泛的应用,但目前的大多数跟踪算法难以同时满足精确与快速的要求.本文提出了一种基于器官跟踪的人脸实时跟踪算法,利用形态学运算对嘴进行跟踪,进而通过对人脸对称性的分析,实现了对头肩序列中人脸的跟踪.由于算法只涉及简单的形态学运算1]和局部的旋转运算,速度达到实时要求,同时人脸对称性的分析保证了跟踪结果的精确性.
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| 关 键 词： | 人脸跟踪 器官跟踪 数学形态学 |
| 收稿时间： | 1999-05-04 |
Principle and Algorithm of Inverse Synthetic Aperture Radar Imaging for Maneuvering Targets |
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| BAO Zheng,SUN Chang-yin,XING Meng-dao.Principle and Algorithm of Inverse Synthetic Aperture Radar Imaging for Maneuvering Targets[J].Acta Electronica Sinica,2000,28(6):24-28. |
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| Authors: | BAO Zheng SUN Chang-yin XING Meng-dao |
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| Institution: | Signal and information processing lab,Beijing polytechnic university,Beijing 100022,China |
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| Abstract: | Inverse synthetic aperture radar (ISAR) imaging of the non cooperative maneuvering target is a challenging task due to its time varying orientation and rotation velocity which denies accurate measuring.This paper investigates the general principles of ISAR imaging of maneuvering targets,and proposes an algorithm for application in situations when the maneuverability is not too serious and the Doppler variation of sub echoes from scatterers can be approximated as a first order polynomial.The imaging results using real data show the effectiveness of the new method. |
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| Keywords: | inverse synthetic aperture radar(ISAR) maneuvering target LFM signal |
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