Aleksandr V. Sergeyev

Michigan Technological University

*This is an algorithmically generated author record based on publicly available information.

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Michigan Technological University

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Aleksandr V. Sergeyev has a total of 7 co-authors. Here are the top co-authors by number of shared publications:

Michael C. Roggemann
Department of Electrical and Computer Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, Michigan 49931-1295, USA
2 shared publications
Brendon Lakenen
Mechatronics Applied Computing Michigan Technological University
1 shared publication
Krishna Chavan
Mechatronics Applied Computing Michigan Technological University
1 shared publication
Mason Petersen
Mechatronics Applied Computing Michigan Technological University
1 shared publication
Nathir A. Rawashdeh
Department of Applied Computing, Michigan Technological University, Houghton, MI, USA
1 shared publication
Piotr Piatrou
Michigan Technological University
1 shared publication

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- 12 February 2025
- Published by arXiv in arXiv
Conveyor Line Color Object Sorting using A Monochrome Camera, Colored Light and RGB Filters
by Mason Petersen, Brendon Lakenen, Krishna Chavan, Pratik Waghmare, Aleksandr Sergeyev, Nathir A. Rawashdeh
This paper tests the ability of a machine vision system with a monochrome camera to differentiate colored objects. The system is designed to autonomously and continuously sort colored objects of which the user specifies the desired color(s). The system uses camera color light filters and red-green-blue (RGB) color light emitting diode (LED) lights to aid the machine vision system in recognizing part contrast. Additionally the system is controlled by a Programmable Logic Controller (PLC) which is integrated with a Robot that is used to remove parts. The parts are fed into the workcell via a conveyor belt that is controlled by the PLC. The user has the ability to select the desired acceptable colors on both the HMI and the physical pushbuttons.
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- 12 February 2025
- Published by arXiv in arXiv
Open Access
Conveyor Line Color Object Sorting using A Monochrome Camera, Colored Light and RGB Filters
by Mason Petersen, Brendon Lakenen, Krishna Chavan, Pratik Waghmare, Aleksandr Sergeyev, Nathir A. Rawashdeh
This paper tests the ability of a machine vision system with a monochrome camera to differentiate colored objects. The system is designed to autonomously and continuously sort colored objects of which the user specifies the desired color(s). The system uses camera color light filters and red-green-blue (RGB) color light emitting diode (LED) lights to aid the machine vision system in recognizing part contrast. Additionally the system is controlled by a Programmable Logic Controller (PLC) which is integrated with a Robot that is used to remove parts. The parts are fed into the workcell via a conveyor belt that is controlled by the PLC. The user has the ability to select the desired acceptable colors on both the HMI and the physical pushbuttons.
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Cited by 1
- 12 July 2017
- Published by Springer Nature
Meeting Twenty-first Century Robotics and Automation Workforce Needs in the USA
by Aleksandr Sergeyev
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- 12 July 2017
- Published by Springer Nature
Meeting Twenty-first Century Robotics and Automation Workforce Needs in the USA
by Aleksandr Sergeyev
Cited by 1
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Cited by 22
- 6 July 2011
- Published by Optica Publishing Group in Applied Optics
Monitoring the statistics of turbulence: Fried parameter estimation from the wavefront sensor measurements
by Aleksandr V. Sergeyev, Michael C. Roggemann
Near-the-ground laser communication systems must operate in the presence of strong atmospheric turbulence. The effects of atmospheric turbulence on the laser beam that are relevant to optical communications are a broadening of the laser footprint, random jitter of the laser beam, and high spatial frequency intensity fluctuations referred to as scintillation. The overall goal of our program is to improve the performance and extend the range of optical communications systems by exploring the use of adaptive optics and channel coding. Knowledge of the turbulence conditions and the ability to describe its properties are the key aspects to make these improvements effective. The developed multiphase approach is directed to statistically describe atmospheric turbulence based on results derived from experimentally collected data. Statistics of Fried parameter $r_{0}$ is derived from $6 TB$ of data collected over $50 days$ , and under various day and night atmospheric conditions. Significant fluctuations of $r_{0}$ are found with the values ranging from $2 mm$ and up to $15 cm$ , corresponding to the significant structure function $C_{n}^{2}$ fluctuations from $7.4 \times 10^{- 14}$ to $8.1 \times 10^{- 16}$ .
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- 6 July 2011
- Published by Optica Publishing Group in Applied Optics
Monitoring the statistics of turbulence: Fried parameter estimation from the wavefront sensor measurements
by Aleksandr V. Sergeyev, Michael C. Roggemann
Near-the-ground laser communication systems must operate in the presence of strong atmospheric turbulence. The effects of atmospheric turbulence on the laser beam that are relevant to optical communications are a broadening of the laser footprint, random jitter of the laser beam, and high spatial frequency intensity fluctuations referred to as scintillation. The overall goal of our program is to improve the performance and extend the range of optical communications systems by exploring the use of adaptive optics and channel coding. Knowledge of the turbulence conditions and the ability to describe its properties are the key aspects to make these improvements effective. The developed multiphase approach is directed to statistically describe atmospheric turbulence based on results derived from experimentally collected data. Statistics of Fried parameter $r_{0}$ is derived from $6 TB$ of data collected over $50 days$ , and under various day and night atmospheric conditions. Significant fluctuations of $r_{0}$ are found with the values ranging from $2 mm$ and up to $15 cm$ , corresponding to the significant structure function $C_{n}^{2}$ fluctuations from $7.4 \times 10^{- 14}$ to $8.1 \times 10^{- 16}$ .
Cited by 22
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Cited by 9
- 28 April 2008
- Published by Optica Publishing Group in Applied Optics
Bootstrap beacon creation for overcoming the effects of beacon anisoplanatism in a laser beam projection system
by Aleksandr V. Sergeyev, Piotr Piatrou, Michael C. Roggemann
We address the problem of using adaptive optics to deliver power from an airborne laser platform to a ground target through atmospheric turbulence under conditions of strong scintillation and anisoplanatism. We explore three options for creating a beacon for use in adaptive optics beam control: scattering laser energy from the target, using a single uncompensated Rayleigh beacon, and using a series of compensated Rayleigh beacons. We demonstrate that using a series of compensated Rayleigh beacons distributed along the path provides the best beam compensation.
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- 28 April 2008
- Published by Optica Publishing Group in Applied Optics
Bootstrap beacon creation for overcoming the effects of beacon anisoplanatism in a laser beam projection system
by Aleksandr V. Sergeyev, Piotr Piatrou, Michael C. Roggemann
We address the problem of using adaptive optics to deliver power from an airborne laser platform to a ground target through atmospheric turbulence under conditions of strong scintillation and anisoplanatism. We explore three options for creating a beacon for use in adaptive optics beam control: scattering laser energy from the target, using a single uncompensated Rayleigh beacon, and using a series of compensated Rayleigh beacons. We demonstrate that using a series of compensated Rayleigh beacons distributed along the path provides the best beam compensation.
Cited by 9