2134/13355
Yasar A. Ozkaya
Yasar A.
Ozkaya
Memis Acar
Memis
Acar
Michael Jackson
Michael
Jackson
Simulation of photosensor-based hairiness measurement using digital image analysis
Loughborough University
2013
Yarn hairiness
Digital image analysis
Sensor resolution
Mechanical Engineering not elsewhere classified
Mechanical Engineering
2013-10-14 13:17:34
Journal contribution
https://repository.lboro.ac.uk/articles/journal_contribution/Simulation_of_photosensor-based_hairiness_measurement_using_digital_image_analysis/9561332
The hair-counting technique using photosensors is a common method to measure the hairiness of the yarns. However, the literature recognizes some deficiencies of the technique regarding the sensor limitations. This paper describes a computer vision approach to simulate the photosensors and to investigate the parameters effecting the hairiness measurement when using these sensors. An algorithm developed to simulate the photosensor signals is explained. The effects of sensor resolution, signal threshold level and selection of zero reference positions from the core are investigated. The correlation between the measurements taken from two different sides of the yarn core is also examined. Twenty yarn samples are tested using a Zweigle G565 hairiness tester, and the results are compared with the hairiness measurements from the simulated photosensor system using digital images.