Size character optimization for measurement system with binocular vision and optical elements based on local particle swarm method

Xu, Guolin; Lu, Xue; Li, Xiaotao; Su, Jian; Tian, Guangdong; Sun, Lina

doi:10.1007/s10043-015-0057-x

Cited by 7 publications

(2 citation statements)

References 29 publications

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“…Due to the advantages of fast response, non-contact, high flexibility and abundant * Author to whom any correspondence should be addressed. perceptual information, the technology has been applied in the fields of nondestructive testing of industrial products, robot visual guidance, 3D target reconstruction and military industry [1][2][3]. Taking the automatic detection of abnormal state of steel coil strapping in iron and steel production enterprises as an example, the strapping state of steel coil is an auxiliary process for safe hoisting.…”

Section: Introductionmentioning

confidence: 99%

A real time detection method for abnormal strapping of steel coil based on CCD active imaging

Ye¹,

Zhao²,

Wang³

et al. 2021

Meas. Sci. Technol.

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In order to accurately detect the abnormal looseness of strapping in the process of steel coil hoisting, an accurate detection method of strapping abnormality based on CCD structured light active imaging is proposed. Firstly, a maximum entropy laser stripe automatic segmentation model integrating multi-scale saliency features is constructed. With the help of saliency detection model, the purpose is to reduce the interference of the environment to the laser stripe and highlight the distinguishability between the stripe and the background. Then, the maximum entropy is used to segment the fused saliency features and accurately extract the stripe contour. Finally, the stripe normal field is obtained by calculating the stripe gradient vector, the stripe center line is extracted based on the stripe distribution normal direction, and the abnormal strapping is recognized online according to the stripe center. Experiments show that the proposed method is effective in terms of detection accuracy and time efficiency, and has certain engineering application value.

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Section: Introductionmentioning

confidence: 99%

A real time detection method for abnormal strapping of steel coil based on CCD active imaging

Ye¹,

Zhao²,

Wang³

et al. 2021

Meas. Sci. Technol.

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show abstract

“…Yang et al [22] studied the influence of camera distortion, number of calibration images, number of targets and position of calibration board on the calibration accuracy. For system structure parameters, it mainly includes the angle between the camera optical axis and the baseline, baseline distance and monitoring distance [22][23][24]. Lu et al [25] built the relationship between structure parameters (baseline, focal length and object distance) and distance measurement errors.…”

Section: Introductionmentioning

confidence: 99%

Accuracy Improvement of Binocular Vision Measurement System for Slope Deformation Monitoring

Feng

et al. 2020

Sensors

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This paper studies the limitations of binocular vision technology in monitoring accuracy. The factors affecting the surface displacement monitoring of the slope are analyzed mainly from system structure parameters and environment parameters. Based on the error analysis theory, the functional relationship between the structure parameters and the monitoring error is studied. The error distribution curve is obtained through laboratory testing and sensitivity analysis, and parameter selection criteria are proposed. Corresponding image optimization methods are designed according to the error distribution curve of the environment parameters, and a large number of tests proved that the methods effectively improved the measurement accuracy of slope deformation monitoring. Finally, the reliability and accuracy of the proposed system and method are verified by displacement measurement of a slope on site.

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Calibration method of laser plane equation for vision measurement adopting objective function of uniform horizontal height of feature points

Hao

et al. 2015

Opt Rev

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Size character optimization for measurement system with binocular vision and optical elements based on local particle swarm method

Cited by 7 publications

References 29 publications

A real time detection method for abnormal strapping of steel coil based on CCD active imaging

A real time detection method for abnormal strapping of steel coil based on CCD active imaging

Accuracy Improvement of Binocular Vision Measurement System for Slope Deformation Monitoring

Calibration method of laser plane equation for vision measurement adopting objective function of uniform horizontal height of feature points

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