Abstract
In order to improve the accuracy and real-time performance of the automatic cleaning of groove rails in modern trams, this paper proposes a groove rail region extraction algorithm based on improved Hough transform. First, in order to speed up the detection and remove noise, the algorithm performs a series of pre-processing on the images collected by the camera, and then use the Canny edge detection method to extract the edge feature information of the groove rail. Finally, the algorithm is improved on the basis of the traditional Hough transform method according to the actual environment. The algorithm proposes three constraints from the straight line length, the slope of the straight line and the distance between the left and right edges, making the algorithm more feasible and accurate in extracting groove rail area. The extraction accuracy reached 97.9%, and the average extraction speed was 0.1903s, laying the foundation for the automatic cleaning of trough rails of modern trams.
Highlights
With the increasingly prominent problems of urban traffic congestion, environmental pollution, and energy shortages, modern trams are gradually gaining popularity
As there are many small-radius curves on the main line of modern trams, and conditions for mixing with social vehicles must be reserved, some sections need to be designed as green tracks
In order to promote the automatic cleaning of trough rails for modern trams, this paper proposes a trough rail region extraction algorithm based on improved Hough transform, which extracts the groove
Summary
With the increasingly prominent problems of urban traffic congestion, environmental pollution, and energy shortages, modern trams are gradually gaining popularity. In order to ensure the sustainable and healthy development of modern trams, our primary task is to ensure the safety of its operation. As there are many small-radius curves on the main line of modern trams, and conditions for mixing with social vehicles must be reserved, some sections need to be designed as green tracks. Various kinds of garbage such as leaves, cigarette butts, bottle caps, etc., are accumulated in the groove rail, which affects the safety of modern trams. If it is not cleaned in time, it is very likely to cause a traffic accident [3].
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