Monocular camera focusing distance measuring device, distance measuring method, storage medium and computer

Abstract

The invention provides a monocular camera focusing distance measuring device and method, a storage medium and a computer. The monocular camera focusing distance measuring device comprises an optical imaging system, a control system and an analysis system. The optical imaging system comprises an industrial camera and a focusable lens; the control system comprises a photoelectric rotary encoder and an embedded control circuit. The photoelectric rotary encoder comprises an outer concentric ring, an inner concentric ring and an output cable. The analysis system is used for obtaining image information of the industrial camera when receiving change information of the rotation angle data, identifying a visual target in the image information based on a neural network instance segmentation model to generate mask information, calculating image definition of the visual target according to the mask information, and displaying the image definition of the visual target in the industrial camera. And the image definition and the rotation angle data are paired and stored. According to the invention, distance measurement is converted into rotation angle measurement, and high-precision distance measurement is further realized by means of the photoelectric rotary encoder.

Description

technical field [0001] The invention relates to the technical field of machine vision and target recognition, in particular to a focusing and ranging device for a monocular camera, a ranging method, a storage medium and a computer. Background technique [0002] With the rapid development of economy and the improvement of people's living standards, machine vision distance measurement technology has become one of the important technologies in industrial production. [0003] Machine vision distance measurement technology can use the principle of camera imaging and equipment to measure the distance of objects, which is the basic technology of vision-based length measurement. There are usually two ranging methods currently used, one is binocular ranging technology, and the other is structured optics measurement. [0004] However, in binocular ranging technology, it is necessary to place two industrial cameras of the same specification according to a fixed distance and the same v...

AI Technical Summary

Problems solved by technology

[0004] However, in the binocular distance measurement technology, it is necessary to place two industrial cameras of the same specification at a fixed distance and in the same direction of view, then measure the distance between the two cameras, and then calculate and fall into the field of view of the two cameras at the same time according to the formula The vertical distance between the same object and the line connecting the two cameras, so the two cameras need to be firmly fixed and the distance between the two cameras should be accurately measured before the measurement. The calibration and installation work in the early stage is also relatively cumbersome, and in the structural optics measurement, it is impossible Relying on a single camera to complete the distance measurement requires the use of complex light sources to assist camera imaging to complete the length measurement, and there is also the problem of cumbersome calibration and installation work in the early stage

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