Multi-camera Vision System for the Inspection of Metal Shafts

Garbacz, Piotr; Giesko, T.

doi:10.1007/978-3-319-29357-8_64

Cited by 5 publications

(2 citation statements)

References 16 publications

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“…Two-dimensional machine vision measurement systems can commonly be divided into two categories: telecentric vision systems and pinhole vision systems. Due to the special mechanical structure design of the telecentric lens, the image size of the object remains unchanged within the depth of field, so the measurement accuracy of the telecentric vision system usually reaches the micron level [ 26 ]. However, only the light, which is parallel to the main optical axis, can be photosensitive in the telecentric vision measurement system.…”

Section: Methodsmentioning

confidence: 99%

Precision Measurement Method of Large Shaft Diameter Based on Dual Camera System

Wang

2022

Sensors

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At present, there is a problem that the measurement accuracy and measurement range cannot be balanced in the measurement of shaft diameter by the machine vision method. In this paper, we propose a large-scale shaft diameter precision measurement method based on a dual camera measurement system. The unified world coordinate system of the two cameras is established by analyzing the dual camera imaging model and obtaining the measurement formula. In order to verify the validity of the proposed method, two black blocks in the calibration plate with a known center distance of 100 mm were measured. The mean value was 100.001 mm and the standard deviation was 0.00039 in 10 measurements. Finally, the proposed system was applied to the diameter measurement of a complexed crankshaft. The mean μ95 values of CMM and the proposed method were ±1.02 μm and ±1.07 μm, respectively, indicating that the measurement accuracy of the proposed method is roughly equal to the CMM.

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Section: Methodsmentioning

confidence: 99%

Precision Measurement Method of Large Shaft Diameter Based on Dual Camera System

Wang

2022

Sensors

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“…Parameters of the wiper motor shafts were measured by an MVM system. The core component of the MVM system is a vision module composed of multiple cameras and the efficiency can reach 20 parts per minute [8]. However, the telecentric vision system only allows light rays which are parallel to the optical axis to pass through the lens, so the field of view (FOV) is small.…”

Section: Introductionmentioning

confidence: 99%