journal article·2021-12-04Open access

Coal and Gangue Recognition Method Based on Local Texture Classification Network for Robot Picking

Yuting Xie, Xiaowei Chi, Haiyuan Li, Fuwen Wang, Lutao Yan, Bin Zhang, Qinjian Zhang

Applied Sciences· Volume 11· Issue 23

Abstract

Coal gangue is a kind of industrial waste in the coal mine preparation process. Compared to conventional manual or machine-based separation technology, vision-based methods and robotic grasping are superior in cost and maintenance. However, the existing methods may have a poor recognition accuracy problem in diverse environments since coals and gangues’ apparent features can be unreliable. This paper analyzes the current methods and proposes a vision-based coal and gangue recognition model LTC-Net for separation systems. The preprocessed full-scale images are divided into n × n local texture images since coals and gangues differ more on a smaller scale, enabling the model to overcome the influence of characteristics that tend to change with the environment. A VGG16-based model is trained to classify the local texture images through a voting classifier. Prediction is given by a threshold. Experiments based on multi-environment datasets show higher accuracy and stability of our method compared to existing methods. The effect of n and t is also discussed.
Source: crossref · Quality: baseline

Research context

OpenAlex topics: Mineral Processing and Grinding · Belt Conveyor Systems Engineering · Metal Extraction and Bioleaching

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Software, Beijing University of Posts and Telecommunications, Beijing 100876, China

International School, Beijing University of Posts and Telecommunications, Beijing 100876, China

School of Automation, Beijing University of Posts and Telecommunications, Beijing 100876, China

School of Artificial Intelligence, Beijing University of Posts and Telecommunications, Beijing 100876, China

School of Mechanical & Electrical Engineering, Beijing Information Science & Technology University, Beijing 100192, China

Funding

National Key Research and Development Program of China · National Natural Science Foundation of China · BUPT innovation and entrepreneurship support program

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