Bar material counting method

Abstract

The invention discloses a bar material counting method comprising the following steps: contour tracking; calculating a minimum bounding circle; forming a template and counting. The method uses an adaptive minimum bounding circle to approach a rod material end face. Carrying out contour tracking for an original image so as to obtain a contour of a binary image; calculating the minimum bounding circle so as to carry out polygonoun approximation; using the minimum bounding circle to identify the bar material end face, thus adaptively extracting a bar material end face radius template. Adaptively obtaining the minimum bounding circle to approach the end face according to the end face no matter the size of the bar material end face, and an error is controlled to be +/-4%. The method uses the bar material end face template matching strategy, and obtains the bar material end face template through iteration; an average radius of the template is Avg, and iteration is carried out in a steel bar end face bounding circle between 0.5*Avg and 1.5*Avg scope, thus effectively solving the bar material counting problems if the sizes of each bar material end face are not completely consistent in a whole bundle of bar materials, and precision can reach 99.5%.

Description

technical field [0001] The invention relates to a counting technology, in particular to a rod counting method. Background technique [0002] Steel is the most widely used functional material in today's human society, and it is also an irreplaceable structural material in various building industries. Especially in today's rapid development of my country's iron and steel industry, steel bar is one of the main products produced by the iron and steel industry. Its output and quality play a vital role in improving the market position of the iron and steel industry in international competition and increasing the interests of the country. Obviously, the accurate counting of steel bars is of great significance to the production and sales of steel bars, and it is also an important basis for checking output and calculating profits. [0003] At present, the counting of the whole bundle of steel bars is still mainly performed by manual counting, which is not only slow, labor-intensive,...

AI Technical Summary

Problems solved by technology

[0003] At present, the counting of the whole bundle of steel bars is still mainly performed by manual counting, which is not only slow, labor-intensive, and inefficient, but also in the long-term highly concentrated counting process, the human eyes a

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