A pattern, also called marker, is a rectangular shape that you need to print and position in front of your camera.
模式(又叫做标记)是一个矩形，你用其在相机前打印和定位。
Comers detecting is the first step for recognizing marker and calculating camera pose.
标记的角点检测是标记识别以及摄像头姿态计算的首要步骤。
The experimental analysis shows: the visual-based tracking system fails to track when the camera moves too fast or the Marker is obscured.
通过实验分析表明：当摄像机移动过快或者标志物被遮挡时，基于视觉的跟踪技术存在跟踪失效的问题。
For visual-based tracking system, the paper discusses and carries out the selection and identification of the Marker, camera calibration and the virtual-reality registration.
在基于标志物的视觉跟踪系统中，本文对真实场景中标志物的选取和识别、摄像机标定、以及虚实物体配准等相关问题进行了论述和实现。
On the basis of discussion of human body motion capture, the key techniques of optical motion capture are introduced, including camera calibration, marker tracking and 3d reconstruction.
在论述了几种方式的人体运动捕捉的基础上，介绍了光学运动捕捉的关键技术，包括摄像机标定、标记点跟踪和三维重建技术。
A 3d reconstruction algorithm based on marker points using multiple images is studied after the camera parameters are obtained.
在获取相机参数之后，研究了一种采用多幅图像基于标记点的三维重建算法。
A 3d reconstruction algorithm based on marker points using multiple images is studied after the camera parameters are obtained.
在获取相机参数之后，研究了一种采用多幅图像基于标记点的三维重建算法。
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