Automatic Reading Method for Pointer Meter Based on Computer Vision
Publication: Earth and Space 2022
ABSTRACT
The pointer meter is an essential component of industrial facilities such as substations, oil fields, buildings, and construction. The readings represented by its pointer record various environmental parameters and equipment operating parameters of industrial facilities. The traditional manual meter reading method is time-consuming and requires professionals to operate it, which has a high demand on labor costs. Therefore, we propose a computer vision-based method for the reading of pointer meter. Through image local feature matching, the algorithm realizes the autonomous correction of image in-plane rotation, and effectively reduces the recognition error caused by image in-plane rotation. Moreover, this method can realize the function of automatic reading of the pointer meter without additional training. The results show that the readings obtained by the proposed method are close to those obtained by manual meter reading and meet the requirements of industrial use.
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Earth and Space 2022
Pages: 669 - 680
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Published online: Jan 5, 2023
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