Using computer vision theory, image coordinate system and camera coordinate system are set up.
应用计算机视觉理论建立了图像坐标系和摄像坐标系；
In the course of measuring the traffic parameters, a vision model between the road coordinate and image coordinate is needed.
在交通参数信息采集过程中，需要在实际道路坐标系和图像坐标系之间建立一个视觉模型。
Their system induces the transformation between code coordinate system and image coordinate system with visual codes in the image.
他们的系统根据图像中的视觉编码来推导图像坐标到物体坐标的变换。
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