Research Article
Machine Vision Based Automatic Detection Method of Indicating Values of a Pointer Gauge
Table 1
Experimental samples.
| Sample name | Image resolution | Sample character | The purpose of sample selection |
| The pressure gauge with many labels and a lot of writing on the dial. | 1000/750 | A lot of writing on the dial, which may influence the location of the dial center and the pointer segmentation. | Verify the robustness of the algorithm and the capability of resisting interference. |
| Flow gauge with the uneven scale. | 500/500 | Uneven distribution of the scale marks. | Verify the universality of the algorithm. |
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