Research Article
A YOLOv3-Based Industrial Instrument Classification and Reading Recognition Method
Table 1
Results of the pointer meter reading function test.
| Sample number | Actual meter values | System reading results | Absolute error | Relative error (%) |
| 1 | 33.2 | 33.14309709 | 0.05690291 | 0.17 | 2 | 15.3 | 15.35345867 | 0.05345867 | 0.35 | 3 | 5.3 | 5.311204024 | 0.011204024 | 0.21 | 4 | 26.8 | 26.84405347 | 0.04405347 | 0.16 | 5 | 28.3 | 28.39544074 | 0.09544074 | 0.34 | 6 | 0 | 0 | 0 | 0 | 7 | 7.5 | 7.511302457 | 0.01130246 | 0.15 | 8 | 26.3 | 26.24309709 | 0.05690291 | 0.22 | 9 | 14.7 | 14.64890989 | 0.05109011 | 0.35 | 10 | 33.4 | 33.36257512 | 0.03742488 | 0.11 |
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