Transformer-based automated segmentation of recycling materials for semantic understanding in construction
Automation in Construction(2023)
Abstract
Construction sites are incorporating cameras to gather imagery data for project management. While transformer-based deep models show promise in recognizing construction objects and understanding the environment, their use in construction images is largely unexplored. This paper presents a systematic evaluation of three state-of-the-art transformer-based models for automatic segmentation and recognition of construction images. Further, a two-stage model ensembling strategy based on model averaging and probability weighting is introduced and implemented for performance improvement. A dataset containing five classes of recycling materials on construction sites is created as a benchmark to compare their performance. The comparison results indicate the ensemble model could achieve encouraging results with a mIoU of 82.36% and mPA of 90.30%, which demonstrate superior segmentation performance on construction images.
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Key words
Construction image segmentation, Systematic evaluation, Transformer -based architectures, Ensemble learning, Model averaging
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