Bala Muralikrishnan
National Institute of Standards and Technology
20 Papers
44 Citations
Bala Muralikrishnan is an academic researcher from National Institute of Standards and Technology. The author has contributed to research in topics: Computer science & Laser tracker. The author has an hindex of 5, co-authored 19 publications.
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Papers
Performance evaluation of terrestrial laser scanners – a review
TL;DR: These efforts including recent work to develop documentary standards for TLS performance evaluation are reviewed and the role of these test procedures in establishing metrological traceability of TLS measurements are discussed.
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Performance evaluation of laser trackers using the network method
Ling Wang,Ling Wang,Bala Muralikrishnan,Octavio Icasio Hernandez,Craig M. Shakarji,Daniel S. Sawyer +5 more
TL;DR: A network-based method is considered as a simple and effective approach to evaluate LT performance without the need for expensive artifacts or reference instruments, and it is shown that the uncertainties in the reference lengths obtained are sufficiently small in comparison to the maximum permissible error (MPE) specifications so that they can be used for performance evaluation.
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Relative range error evaluation of terrestrial laser scanners using a plate, a sphere, and a novel dual-sphere-plate target.
Bala Muralikrishnan,Prem K. Rachakonda,Vincent D. Lee,Meghan Shilling,Daniel S. Sawyer,Geraldine S. Cheok,Luc Cournoyer +6 more
TL;DR: This paper discusses relative range experiments performed using a plate target and then addresses the advantages and limitations of using a sphere target, and presents a novel dual-sphere-plate target that draws from the advantages of the sphere and the plate without the associated limitations.
19
Toward the development of a documentary standard for derived-point to derived-point distance performance evaluation of spherical coordinate 3D imaging systems
Bala Muralikrishnan,Meghan Shilling,Prem K. Rachakonda,Wei Ren,Vincent D. Lee,Daniel S. Sawyer +5 more
TL;DR: A geometric error model and a sensitivity analysis based approach to identify sensitive test positions for performance evaluation and it is shown that it is not only important for target spheres to allow repeatable determination of their centers, but it is also necessary they have good form.
14
Validation of the network method for evaluating uncertainty and improvement of geometry error parameters of a laser tracker
Octavio Icasio-Hernández,Diego Aldo Bellelli,Luiz H. Brum Vieira,Daniel Cano,Bala Muralikrishnan +4 more
TL;DR: In this article, the authors developed two methods to improve the LT geometry error parameters by fitting the composite points to the LT geometrical error model, and evaluated the parameters placing the geometry error model in the minimization of the bundled adjustment's residual.
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