A visual counting and positioning method for electronic components

Abstract

The invention discloses a visual counting and positioning method for electronic components, which comprises the following steps: 1. Select part of images, mark the center of gravity of electronic components and make a training image set; 2. Build a neural network model, use the training image set to train and save the neural network. Network model; 3. For an image other than a training image set, first preprocess, detect and cut out the black border; detect the outer circle and inner circle of the area where the electronic component is located; crop the smallest circumscribed square area of ​​the outer circle into an image Then input the neural network model in turn to obtain the density map matrix set; finally, after post-processing, the density map matrix is ​​merged; calculate the connected area between the outer circle and the inner circle of the density map matrix after the merger, and obtain the electronic component in the electronic component image Count and locate results. The method of the invention can solve the problems that the size and shape of the electronic components are too large and the adhesion between some electronic components is too large to affect the counting accuracy.

Description

technical field [0001] The invention belongs to the application field of computer vision, and specifically proposes a visual counting and positioning method for electronic components. Background technique [0002] With the rapid development of the electronic information industry, all kinds of electronic products appear in people's field of vision. Most electronic products are controlled by circuit boards, and circuit boards are inseparable from electronic components such as various capacitors, resistors, and inductors. Its production technology mainly adopts high-speed surface mount technology. During this process, the utilization rate of electronic components such as capacitors and resistors is extremely high. Therefore, SMT manufacturers have extremely high requirements for updating statistics of electronic components and other materials. [0003] Traditional counting of electronic components mostly adopts weighing or manual counting, which is not only inefficient but als...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose a visual counting and positioning method for electronic components to address the deficiencies in the existing electronic component counting and positioning methods based on traditional image processing technology. The excessive adhesion between some electronic components affects the counting accuracy. Using a model and a set of parameters to complete the electronic component counting task, this method has extremely high accuracy and robustness

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