首页> 外文会议>International Symposium on Systems and Human Science; 20031119-20; Osaka(JP) >Visual Object Tracking Based on a Multi-Viewpoint 3D Gradient Method
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Visual Object Tracking Based on a Multi-Viewpoint 3D Gradient Method

机译:基于多视点3D梯度方法的视觉对象跟踪

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A method for 3D motion tracking without feature extraction is necessary for monitoring human action in a normal civil-life scene. To create a fast and robust object tracking method, we propose a model-based method using intensity images taken with a multiple viewpoint camera connected to a PC cluster system. First, the whole 3D shape and reflectance model of the object are prepared using several rangefinders. Each rangefinder is constructed with a camera, projector and PC, and all PCs are connected via network to each other. For tracking the object, several CG images with varied object pose and position are generated in each PC using the object model, and then compared to the input intensity image in parallel. The result of the comparison is transferred to a master PC, and the pose and position of the object are estimated by minimizing the residual of the CG and input images. We made a special CG generator, which is a precise simulator of the real camera to generate a CG image identical to the input image. We confirmed the ability of our method and achieved a 3DOF real-time object tracking system at the rate of 4.5 frames/s, and 6DOF tracking using four cameras at 5 frames/s.
机译:在正常的民用场景中监视人类动作时,需要一种无需特征提取的3D运动跟踪方法。为了创建快速而强大的对象跟踪方法,我们提出了一种基于模型的方法,该方法使用了通过连接到PC群集系统的多视点相机拍摄的强度图像。首先,使用多个测距仪准备对象的整个3D形状和反射率模型。每个测距仪都由照相机,投影仪和PC构成,并且所有PC都通过网络相互连接。为了跟踪对象,使用对象模型在每台PC中生成了具有变化的对象姿势和位置的多个CG图像,然后将其与输入强度图像进行并行比较。比较的结果被传送到主计算机,并且通过使CG和输入图像的残差最小化来估计对象的姿势和位置。我们制作了一个特殊的CG生成器,它是真实相机的精确模拟器,用于生成与输入图像相同的CG图像。我们确认了我们方法的能力,并以4.5帧/秒的速度实现了3DOF实时对象跟踪系统,并使用5帧/秒的四台摄像机实现了6DOF跟踪。

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