Package volume measuring method based on machine vision

Abstract

The invention discloses a package volume measuring method based on machine vision. The method comprises the following steps: S1, fixedly mounting a vision camera, calibrating the vision camera and converting the vision camera under a world coordinate system; S2, initializing height of the vision camera; S3, putting a package on a measuring table surface, and acquiring a depth image A2 through thevision camera; S3-1, acquiring package edges according to the depth image A2, and judging the size type of the package; S4, performing image division on the depth image A2 to acquire a package area ofan image; S4-1, calculating and acquiring dot cloud of the package area of the image, processing dot cloud splicing and performing smooth processing to acquire package dot cloud; S4-2, analyzing thepackage dot cloud size of the package dot cloud acquired in the step S4-1; and S5, calculating the sizes, including length, width and height, of the package area of the image, and calculating to acquire actual volume V of the package. According to the package volume measuring method disclosed by the invention, the measurement of the package size can be completed by adopting the package volume measuring method based on machine vision instead of an existing manual way, so that the measurement accuracy can be effectively improved, the labor cost is reduced, and the working efficiency is improved.

Description

technical field [0001] The invention relates to the field of methods for measuring the volume of packages or other objects, in particular to the method for measuring the volume of objects based on machine vision. Background technique [0002] With the rapid development of the logistics industry, traditional logistics operation methods can no longer meet the operational needs of the industry. Reducing logistics costs, improving logistics timeliness, and improving service quality have become problems that my country's logistics industry needs to solve urgently. [0003] In recent years, 3D imaging technology has continued to develop, including binocular stereo imaging, structured light 3D imaging and TOF imaging. With the application of this technology in logistics equipment, the degree of automation of the logistics industry has been continuously improved, and domestic logistics equipment technology has entered In the stage of rapid growth, especially the application of logis...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned large-scale logistics equipment is expensive, complex in structure, high in configuration and operation requirements, and requires professional technical personnel for management and maintenance. It is not suitable for small and medium-sized logistics enterprises, such as express delivery stations and logistics delivery stations similar to Cainiao Post. , the size of the package is calculated by manual measurement and calculation, which is inefficient, especially for large packages. The package size measurement process can only be done manually, and two people are required to cooperate with the measurement size. This operation process has a high degree of manual participation and high efficiency. Low, large measurement error

[0005] At present, there are also equipment for automatically measuring the size of objects, but there is no automated system for measuring packages of different sizes at logistics receiving and receiving points. In view of this, the inventor of this case is committed to research, development and improvement, and this case arises

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