Road scene model construction is an important aspect of intelligent transportation system\nresearch. This paper proposes an intelligent framework that can automatically construct road scene\nmodels from image sequences. The road and foreground regions are detected at superpixel level via\na new kind of random walk algorithm. The seeds for different regions are initialized by trapezoids\nthat are propagated from adjacent frames using optical flow information. The superpixel level region\ndetection is implemented by the random walk algorithm, which is then refined by a fast two-cycle\nlevel set method. After this, scene stages can be specified according to a graph model of traffic\nelements. These then form the basis of 3D road scene models. Each technical component of the\nframework was evaluated and the results confirmed the effectiveness of the proposed approach.
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