Verification temperature character identification method of glass thermometer
A glass thermometer, character recognition technology, applied in character recognition, character and pattern recognition, calculation and other directions, can solve problems such as boring, reduce verification accuracy and efficiency, and unsatisfactory effect, and achieve the effect of improving work efficiency
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[0103] When the present invention collects the fuzzy image of the thermometer, the signal noise generated in the fuzzy image collection process can be solved by corresponding signal processing algorithms such as digital filtering algorithm; and the distortion caused by the change of the viewing angle when collecting the image mainly comes from Due to the parallax when the camera is imaging, the distance between the scale lines of the thermometer in the fuzzy image is uneven. In addition, the thermometer itself is not a plane, and the characters on the thermometer will inevitably be distorted during the imaging process. The thermometers submitted for inspection are usually thermometers used by customers, so the lines on the thermometers to be inspected are often missing, such as missing scale lines, missing characters, etc., resulting in "occlusion" problems. In the actual verification process, the most important problem is the "occlusion" problem. In some extreme cases, thermo...
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