基于隔行扫描彩色CCD的运动姿态实时检测

发布时间：2018-05-08 01:34

本文选题：实时检测 + 傅里叶变换去隔行算法　；参考：《光电子·激光》2014年12期

【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RGB3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]:This paper presents a real-time method for 3D object motion attitude detection using interlaced color CCD. Only a color sinusoidal grating with 2 / 3) 蟺 phase shift between adjacent channels is designed to be projected onto moving objects, and a sequence of color deformation fringes of objects is captured in real time by interlaced color CCD camera. Three gray-scale phase-shift stripes of each frame are decomposed from the odd field and even field RGB3 channel of each frame. A Fourier transform de-interlacing algorithm is proposed for the lack of interlaced fringe information. The interlaced field fringes are interpolated into progressive frame stripes, so that six frames of stripes with interlaced grayscale phase shift can be reconstructed from each frame of color deformation stripes, forming two sets of three-step phase-shifted stripes. The phase measurement profilometry (PMP) is used to reconstruct the motion profile information at two different times. It is concluded from the theory that the surface shape of the deinterlaced color deformable fringes keeps the measuring accuracy of the traditional PMP, and the experiment proves the validity and feasibility of the proposed method, and applies it to the attitude detection of moving objects. The information of motion attitude detection is doubled.
【作者单位】：四川大学光电系;平顶山学院电气信息工程学院;
【基金】：国家科技重大专项(2009ZX02204-008) 国家“863”计划(2007AA01Z333)资助项目
【分类号】：TN948.41

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