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A method for rapid counting and integrity detection of tablets in a complex environment

A technology for integrity detection and complex environment, applied in computing, image data processing, image analysis and other directions, it can solve problems with high requirements, reduce requirements and use costs, expand the scope of application, and improve ease of use.

Active Publication Date: 2022-02-08
HUNAN UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the above-mentioned detection system has higher requirements on the application environment, and better application results can only be achieved in an environment with less interference from water mist, dust, etc., and basically uniform lighting conditions.

Method used

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  • A method for rapid counting and integrity detection of tablets in a complex environment
  • A method for rapid counting and integrity detection of tablets in a complex environment
  • A method for rapid counting and integrity detection of tablets in a complex environment

Examples

Experimental program
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Embodiment Construction

[0048] like figure 1 As shown, first obtain the image of a standard tablet, taking a round tablet as an example, the specific operation is as follows, put a batch of round tablets on the workbench, adjust the light source, and evenly arrange the rows of standard round tablets according to 5 Rows and 5 columns are distributed in the measurement area, and the industrial camera captures the image of the standard tablet vertically, and the obtained image of the standard tablet is as follows: Figure 4 shown. And use the image processing algorithm to measure the average area of ​​all standard circular tablets in the standard image as 4202, and use it as the standard area. In addition, it is necessary to calculate the normalized central moment of each circular tablet to obtain 7 characteristic Hu moments, and then calculate the 7 average Hu moments of the tablets in the entire standard image. The average Hu moment calculated by the standard image is 8.3785e-04, 3.1627e-09, 1.3721e...

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Abstract

The invention discloses a method for rapid counting and integrity detection of tablets in a complex environment. An industrial camera is used to obtain some complete tablet images, and the size and Hu moment of each standard tablet are calculated, and the average area and average Hu moment of these tablets are taken as Standard parameters of the same batch of tablets; use an industrial camera to collect images of the tablets to be tested, perform local illumination compensation on the image through histogram equalization, determine the mean template and sharpening template according to the standard area size, and perform convolution operations with the image successively , to complete image processing in complex environments. Perform threshold segmentation on the preprocessed image to obtain the area and Hu moment of each contour, remove the fake tablet data, then compare the measured parameters of each tablet with the standard parameters, and identify damaged tablets and shape distortion based on the judgment basis Pills to complete the test. The invention has simple and convenient operation and good stability, and is suitable for production lines of the same batch of tablets of various shapes.

Description

technical field [0001] The invention relates to the technical field of machine vision detection, in particular to a method for rapid counting and integrity detection of tablets in a complex environment. Background technique [0002] In the process of tablet production, it is an indispensable link to check the tablets. The traditional manual visual inspection process is complicated and inefficient, which can no longer meet the requirements of the modern pharmaceutical industry. Visual measurement technology has the remarkable characteristics of non-contact, strong flexibility, and high integration. It has broad application prospects in the modern pharmaceutical industry and has become a research hotspot. In recent years, researchers at home and abroad have done a lot of research work in the field of machine vision technology applied to the pharmaceutical industry, and developed some visual inspection systems related to drug quality inspection, such as the Seidenader XS syste...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00G06T7/136G06T7/62
CPCG06T7/0004G06T7/136G06T7/62
Inventor 王宪欧佳豪赵前程杨天龙
Owner HUNAN UNIV OF SCI & TECH
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