Road recognition based on multi-scale convolutional network with multi-level feature fusion

Ye Li; Lili Guo; Lele Xu; Xianfeng Wang; Shan Jin

doi:10.1117/12.2524175

6 May 2019 Road recognition based on multi-scale convolutional network with multi-level feature fusion

Ye Li, Lili Guo, Lele Xu, Xianfeng Wang, Shan Jin

Proceedings Volume 11069, Tenth International Conference on Graphics and Image Processing (ICGIP 2018); 110693F (2019) https://doi.org/10.1117/12.2524175
Event: Tenth International Conference on Graphic and Image Processing (ICGIP 2018), 2018, Chengdu, China

Abstract

Road recognition from optical remote sensing images is important for many applications like intelligent transportation system. Currently, convolutional neural networks (CNNs) methods are widely utilized in road recognition. However, many CNN methods hardly get good recognition performance when they process high-resolution images with large road width variance and complex background. For this problem, we develop a road recognition method based on a multi-scale convolutional network (MCN) with multi-level feature fusion. MCN comprises several CNNs with different scales of inputs and thus can extract multi-scale features. Each CNN fuses low-level geometrical features, middle-level features and high-level semantic features respectively from shallow, middle and deep layers. The multi-scale scheme and multi-level feature fusion make the MCN capable to handle large road width variance and complex background. Our method is validated on a manually labeled visible remote sensing image dataset. Moreover, our method is compared with CNNs without multi-scale or multi-level feature fusion and a fully convolutional network (FCN). The experimental results show that our method can well deal with complex visible remote sensing images with large road width variance.

Citation Download Citation

Ye Li, Lili Guo, Lele Xu, Xianfeng Wang, and Shan Jin "Road recognition based on multi-scale convolutional network with multi-level feature fusion", Proc. SPIE 11069, Tenth International Conference on Graphics and Image Processing (ICGIP 2018), 110693F (6 May 2019); https://doi.org/10.1117/12.2524175

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KEYWORDS

Roads

Image fusion

Remote sensing

Convolution

Tin

Image processing

Intelligence systems

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