Water meter reading video identification technology
A video recognition and reading technology, applied in character and pattern recognition, instruments, computer components, etc., can solve the problems of equipment hardware cost and software cost increase, line of sight dimming, up and down deviation, etc. Low requirements, avoid the effect of high requirements
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[0019] Example 1.
[0020] The water meter reading video recognition technique described in this embodiment includes a water meter and a camera, and the diameter of the outer frame of the surface of the water meter is preset according to the recognized water meter model, the number of circles in the outer frame and the read number circle in all read circles The relative position, while it is determined that the pointer in the read circle is different from the color of the outer circle. Then, the camera is fixed above the water meter, and the water meter walk video is taken in real time. The camera image recognition refresh frequency is set to 30 Hz, and then processes the video file in real time as follows:
[0021] Step 1, according to the measured known inside outer frame diameter, the position and center of the water meter are looking for the position and center of the water meter, and the detection is continuously converged, determined to determine the final detection of the w...
Example Embodiment
[0025] Example 2.
[0026] The water meter reading video recognition technique described in this embodiment includes a water meter and a camera, and the diameter of the outer frame of the water meter is preset according to the recognized water meter model, the number of reads circles in the outer frame and the read circle in all readings The relative position in the middle is a clockwise second read number, and the size and position of the fan area are set by the center of the outer frame circle, and the pointer in the read circle is the same as the color of the outer circle. Then, the camera is fixed above the water meter, and the water meter walk video is taken in real time. The camera image recognition refresh frequency is set to 30 Hz, and then processes the video file in real time as follows:
[0027] Step 1, according to the known outer frame diameter, the position and center of the water meter are found by the Hoff circle detection method; multiple detection, and constantly...
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