最后融合三个圈圈的交集就是资讯视觉化，感觉上整个图都经过精心安排，有创意得来又好像很逻辑似的。
And finally, the intersection of the three circles is data visualization, the figure was carefully arranged, it looks well design yet a logic creative.
利用运动参数进行投影，然后用多帧相减并求交集，估计出每帧图像中运动物体存在的区域，最后计算得到了全景图。
Project frames with motion parameters, and the intersection of two subtraction results of neighbor frames will give the moving object area. Last we can calculate the panorama image.
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