Optical measurement system for the quality control of aeronautic parts: 3D measurement of circular holes and curved edges

Naudet-Collette, Sylvie; Dekeyser, Fabien; Gaspard, F.; Dhome, Yoann

doi:10.1117/12.737155

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Instead of calibrating the relative position between camera and object, researchers calibrated the positional parameters between the camera and the laser light plane. The second way is to shoot the object at different viewing angles and calibrate the positional relationship between camera and object in each shot [8,9]. This requires a calibration target to appear in every image.…”

Section: Related Workmentioning

confidence: 99%

An accurate and robust method for the measurement of circular holes based on binocular vision

Xia

Zhao

et al. 2019

Meas. Sci. Technol.

View full text Add to dashboard Cite

Circular holes in industrial parts are a very important feature which are often used as assembly references for other parts, so accurate measurement is required. Measurement of circular holes based on computer vision is a promising method but also very challenging, because it is tricky to find the edge of a hole accurately in an image. In this paper, an accurate and robust method for the measurement of circular holes is proposed. Firstly, highly trusted edge points of the hole are found based on pixel intensity information. Secondly, a new energy function model based on the epipolar geometry constraint is introduced to obtain the optimal edges of the hole. Finally, a spatial circular hole is accurately reconstructed by using the points on the optimized edges as input to a threedimensional reconstruction method. Our experimental result shows that the proposed method could measure various circular holes from different views with an error of around 0.05 mm.

show abstract

Section: Related Workmentioning

confidence: 99%