Development of online classification system for construction waste based on industrial camera and hyperspectral camera

Wen Xiao, Jianhong Yang, Huaiying Fang, Jiangteng Zhuang and Yuedong Ku

PLOS ONE, 2019, vol. 14, issue 1, 1-16

Abstract: Construction waste is a serious problem that should be addressed to protect environment and save resources, some of which have a high recovery value. To efficiently recover construction waste, an online classification system is developed using an industrial near-infrared hyperspectral camera. This system uses the industrial camera to capture a region of interest and a hyperspectral camera to obtain the spectral information about objects corresponding to the region of interest. The spectral information is then used to build classification models based on extreme learning machine and resemblance discriminant analysis. To further improve this system, an online particle swarm optimization extreme learning machine is developed. The results indicate that if a near-infrared hyperspectral camera is used in conjunction with an industrial camera, construction waste can be efficiently classified. Therefore, extreme learning machine and resemblance discriminant analysis can be used to classify construction waste. Particle swarm optimization can be used to further enhance the proposed system.

Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0208706

DOI: 10.1371/journal.pone.0208706

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