基于隔行扫描彩色CCD的运动姿态实时检测
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(1.四川大学 光电系,四川 成都 610065; 2.平顶山学院 电气信息工程学院,河南 平顶 山 467000)

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曹森鹏(1978-),男,河南舞钢人,博士研究生,主要从事光 学三维测量和光信息处理的研究.

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国家科技重大专项(2009ZX02204-008)和国家“863”计划(2007AA01Z333)资助项目 (1.四川大学 光电系,四川 成都 610065; 2.平顶山学院电气信息工程学院,河南 平顶 山 467000)


Moving pose real-time detection based on interlacing scan color CCD camera
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(1.Opto-Electronics Department,Sichuan University,Chengdu 610064,C hina; 2.College of Electrical and Information Engineering,Pingdingshan University,Pingdingshan 467000,China)

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    摘要:

    提出了一种采用隔行扫描彩色CCD的三维物体运 动姿态实时检测方法。仅需设计1个在相邻通道间 有(2/3)π相移的彩色正弦光栅投影到运动物体上,用隔行扫描彩色CCD摄像机实时采 集物体的一组序列彩 色变形条纹,从每一帧彩色变形条纹的奇场和偶场RGB 3通道中分别分解出各 自的3场灰度相移条纹,针对 这些场条纹都缺失隔行的条纹信息,提出一种傅里叶变换去隔行算法,使隔行的场条纹插补 成逐行的帧条 纹,因而从每一帧彩色变形条纹中可重构出6帧去隔行灰度相移变形条纹,形成两组三步相 移的条纹,利 用相位测量轮廓术(PMP)可重构出两个不同时刻的运动姿态面形信息。从理论 得出,去隔行彩色变 形条纹重建的面形保持了传统PMP的测量精度;实验证实了本文所提出的有效性和可行性, 并且将其应用到运动物体姿态检测中,使检测运动姿态的 信息量提高1倍。

    Abstract:

    To achieve the result from one deformed color fringe to two reconstruc ted 3D shapes,a real-time detection method of the moving pose using an interlacing scan color CCD camera i s proposed.Only a color grating designed with a phase shift of (2/3)π between neighboring channels is p rojected on a moving object,and a sequence of the deformed color fringes are grabbed by an interlacing scan color CCD camera.Odd and even fields of every frame of deformed color fringe are divided into three field phase-shif ted deformed grayscale fringes from RGB color channels respectively,every of which misses the interlacing fringe′s information,and a de-interlaced algorithm of Fourier transform is presented to make interlaced field fringe tran sformed into non-interlaced frame fringe. Therefore,the six frames of de-interlaced deformed grayscale fringes from one f rame of deformed color fringe are generated,and two sets of three-step phase-shifted fringes are formed,with whi ch two 3D shapes of the different moving poses are reconstructed by phase measur ing profilometry (PMP). Theoretically,the reconstructed shape by using the de-interlaced deformed color fringe maintains the measurement accuracy of the traditional PMP,and the experimental results demonstrate the method′s feasibility and validity.The method obtains double information contents on the detection of moving object′s pose.

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曹森鹏,曹益平,刘效勇.基于隔行扫描彩色CCD的运动姿态实时检测[J].光电子激光,2014,(12):2316~2321

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  • 收稿日期:2014-04-26
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  • 在线发布日期: 2015-01-08
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