文摘
Safety is one of the most concerned issues in traffic and transportation, among which railway detection is a fundamental and necessary research. In this paper, we propose a visual railway detection method based on superpixels rather than pixels. An SVM classifier is learned based on features, on which a TF-IDF like transform is applied, and it greatly improves the performance of the classification. The intracellular decision scheme is proposed to make decisions on a superpixel by using predictions of features within the superpixel. All the superpixels that are predicted as positive constitute the railway to be detected. The proposed railway detection method is evaluated on a number of challenging images and experiments demonstrate that the proposed method is an effective and detailed solution to railway detection, and is superior to other railway detection methods.