Corpus ID: 235899144

Diff-Net: Image Feature Difference based High-Definition Map Change Detection

  title={Diff-Net: Image Feature Difference based High-Definition Map Change Detection},
  author={Lei He and Shengjie Jiang and Xiaoqing Liang and Ning Wang and Shiyu Song},
  • Lei He, Shengjie Jiang, +2 authors Shiyu Song
  • Published 2021
  • Computer Science
  • ArXiv
Up-to-date High-Definition (HD) maps are essential for self-driving cars. To achieve constantly updated HD maps, we present a deep neural network (DNN), Diff-Net, to detect changes in them. Compared to traditional methods based on object detectors, the essential design in our work is a parallel feature difference calculation structure that infers map changes by comparing features extracted from the camera and rasterized images. To generate these rasterized images, we project map elements onto… Expand

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