Testing a Movable Camera System for Quantifying 3-D Motion

一种基于两台摄像机的新型系统被开发出来，用于量化运动物体的位置。操作人员将用旋转的摄像机跟踪目标。该系统的创新之处在于它能够记录每个摄像机移动时的平移和倾斜方向。方向角由光轴编码器测量，并以视频帧速率以条形码格式存储在图像中。这些角度和拍摄对象在视频图像中的像素坐标将被用来计算拍摄对象在三维空间中的位置。收集到的数据将建立一个便携式摄像机系统来研究动物户外运动的可行性。

A novel system, based on two video cameras, is developed to quantify the position of a moving subject. Human operators will track the subject with cameras that rotate. The innovative feature of the system is its ability to record the pan and tilt directions of each camera as the cameras are moved. The direction angles are measured by optical shaft encoders and stored on the image at video frame rates in bar code format. These angles and the pixel coordinates of the subject in the video images will be used to calculate the position of the subject in three-dimensional space. The data gathered will establish the feasibility of building a portable video camera system to study animal locomotion out of doors.