Device and method for road surface identification in low-definition video streaming

The invention puts forward a device for road surface identification in low-definition video streaming. The device comprises a road surface information collecting device with a binocular camera system, wherein the road surface information collecting device uses the binocular camera system to shoot road ahead of a vehicle so as to collect video information of the road ahead; a road surface or roadblock region detection device for converting the video information of the road ahead collected by the road surface information collecting device into a disparity map, converting the disparity map into a series of sub-V disparity maps and U disparity maps, performing adaptive line segment fitting to each sub-V disparity map and each U disparity map by using adaptive Hough transform, fitting mapping line segments of the road surface and the roadblock in each sub-V disparity map, and obtaining regional ranges of the road surface and the roadblock according to the mapping line segments of the road surface and the roadblock, fitting a mapping line segment of the roadblock in the U disparity maps, and obtaining a regional range of the roadblock according to the mapping line segment of the roadblock.