The 20th and 21st joint COTA International Conference of Transportation Professionals (CICTP 2020-21)

This study presents a road segmentation model with high accuracy and real-time performance. Road segmentation is a crucial problem in the application of autonomous vehicles, which requires real-time performance and accuracy. Nowadays, current models require high-resolution images to realize high accuracy performance, while the low-resolution losses many details. However, high-resolution costs much inference time and can’t meet the real-time requirement. To handle this problem, on basis of Efficient Residual Factorized ConvNet (ERFNet), we insert the feature fusion and enhance its upsampling blocks, which capture more road’s edge information and achieve higher accuracy. This enhanced ERFNet decoder is designed with three main components: multi-scale feature fusion, revised factorized layers and dense upsampling convolutions. The model is based on the encoder-decoder architecture, and the encoder network is Efficientnet-B1. The proposed model shows impressing results on both inference time and segmentation accuracy, and this efficient model can be applied to autonomous vehicle systems.

CICTP