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Automatic classification method of construction waste based on machine vision

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  • Lei Zhang

Abstract

In order to solve the problems of low accuracy and low efficiency of existing automatic classification methods of construction waste, an automatic classification method of construction waste based on machine vision was proposed. Firstly, the CCD camera is used to collect the image and enhance the image. Then, the maximum entropy method is used to obtain the optimal segmentation threshold of the image, and the construction waste image is segmented. Finally, the gradient information is used to obtain the image features of construction waste, and the automatic classification of construction waste is realised by combining with the SVM algorithm. The experimental results show that the classification accuracy of the proposed method is between 90% and 98%. When the number of construction waste images is 1,000, the classification time is 13 min, which indicates that the proposed method has high classification accuracy, high efficiency and good application performance.

Suggested Citation

  • Lei Zhang, 2025. "Automatic classification method of construction waste based on machine vision," International Journal of Environmental Technology and Management, Inderscience Enterprises Ltd, vol. 28(1/2/3), pages 19-31.
    • Handle: RePEc:ids:ijetma:v:28:y:2025:i:1/2/3:p:19-31
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