Building a gonioreflectometer - a geometrical evaluation

Andreas Winkler; Bernhard Zagar

doi:10.1109/I2MTC.2015.7151571

Building a gonioreflectometer - a geometrical evaluation

Andreas Winkler, Bernhard Zagar

Institute of Measurement Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference proceedings › peer-review

Abstract

A gonioreflectometer is a device for measuring the reflectance properties of the surface of a specimen by means of the bidirectional reflectance distribution function (BRDF). In order to scan the 4D BRDF parameter space, such a device requires at least one light source and one detector and the ability to move at least two of the following: light source, detector, and specimen. In this work we analyze the geometry of a conceptual measurement device where the specimen is moved by three rotary stages assembled to form a gimbal mount. The camera-as detector-remains fixed, and the light source is moved along a circular trajectory centered on the specimen surface. The model presented allows evaluation of the subspace of the BRDF parameter space that is accessible using a given measurement setup.

Original language	English
Title of host publication	2015 IEEE International Instrumentation and Measurement Technology Conference - The "Measurable" of Tomorrow
Subtitle of host publication	Providing a Better Perspective on Complex Systems, I2MTC 2015 - Proceedings
Pages	1900-1905
Number of pages	6
ISBN (Electronic)	9781479961139
DOIs	https://doi.org/10.1109/I2MTC.2015.7151571
Publication status	Published - 06 Jul 2015

Publication series

Name	Conference Record - IEEE Instrumentation and Measurement Technology Conference
Volume	2015-July
ISSN (Print)	1091-5281

Fields of science

202012 Electrical measurement technology
202036 Sensor systems
101014 Numerical mathematics
102003 Image processing
202027 Mechatronics
202037 Signal processing
207410 Photogrammetry

JKU Focus areas

Mechatronics and Information Processing

Access to Document

10.1109/I2MTC.2015.7151571

Cite this

Winkler, A., & Zagar, B. (2015). Building a gonioreflectometer - a geometrical evaluation. In 2015 IEEE International Instrumentation and Measurement Technology Conference - The "Measurable" of Tomorrow: Providing a Better Perspective on Complex Systems, I2MTC 2015 - Proceedings (pp. 1900-1905). Article 7151571 (Conference Record - IEEE Instrumentation and Measurement Technology Conference; Vol. 2015-July). https://doi.org/10.1109/I2MTC.2015.7151571

Winkler, Andreas ; Zagar, Bernhard. / Building a gonioreflectometer - a geometrical evaluation. 2015 IEEE International Instrumentation and Measurement Technology Conference - The "Measurable" of Tomorrow: Providing a Better Perspective on Complex Systems, I2MTC 2015 - Proceedings. 2015. pp. 1900-1905 (Conference Record - IEEE Instrumentation and Measurement Technology Conference).

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title = "Building a gonioreflectometer - a geometrical evaluation",

abstract = "A gonioreflectometer is a device for measuring the reflectance properties of the surface of a specimen by means of the bidirectional reflectance distribution function (BRDF). In order to scan the 4D BRDF parameter space, such a device requires at least one light source and one detector and the ability to move at least two of the following: light source, detector, and specimen. In this work we analyze the geometry of a conceptual measurement device where the specimen is moved by three rotary stages assembled to form a gimbal mount. The camera-as detector-remains fixed, and the light source is moved along a circular trajectory centered on the specimen surface. The model presented allows evaluation of the subspace of the BRDF parameter space that is accessible using a given measurement setup.",

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Winkler, A & Zagar, B 2015, Building a gonioreflectometer - a geometrical evaluation. in 2015 IEEE International Instrumentation and Measurement Technology Conference - The "Measurable" of Tomorrow: Providing a Better Perspective on Complex Systems, I2MTC 2015 - Proceedings., 7151571, Conference Record - IEEE Instrumentation and Measurement Technology Conference, vol. 2015-July, pp. 1900-1905. https://doi.org/10.1109/I2MTC.2015.7151571

Building a gonioreflectometer - a geometrical evaluation. / Winkler, Andreas; Zagar, Bernhard.
2015 IEEE International Instrumentation and Measurement Technology Conference - The "Measurable" of Tomorrow: Providing a Better Perspective on Complex Systems, I2MTC 2015 - Proceedings. 2015. p. 1900-1905 7151571 (Conference Record - IEEE Instrumentation and Measurement Technology Conference; Vol. 2015-July).

Research output: Chapter in Book/Report/Conference proceeding › Conference proceedings › peer-review

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N2 - A gonioreflectometer is a device for measuring the reflectance properties of the surface of a specimen by means of the bidirectional reflectance distribution function (BRDF). In order to scan the 4D BRDF parameter space, such a device requires at least one light source and one detector and the ability to move at least two of the following: light source, detector, and specimen. In this work we analyze the geometry of a conceptual measurement device where the specimen is moved by three rotary stages assembled to form a gimbal mount. The camera-as detector-remains fixed, and the light source is moved along a circular trajectory centered on the specimen surface. The model presented allows evaluation of the subspace of the BRDF parameter space that is accessible using a given measurement setup.

AB - A gonioreflectometer is a device for measuring the reflectance properties of the surface of a specimen by means of the bidirectional reflectance distribution function (BRDF). In order to scan the 4D BRDF parameter space, such a device requires at least one light source and one detector and the ability to move at least two of the following: light source, detector, and specimen. In this work we analyze the geometry of a conceptual measurement device where the specimen is moved by three rotary stages assembled to form a gimbal mount. The camera-as detector-remains fixed, and the light source is moved along a circular trajectory centered on the specimen surface. The model presented allows evaluation of the subspace of the BRDF parameter space that is accessible using a given measurement setup.

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Winkler A, Zagar B. Building a gonioreflectometer - a geometrical evaluation. In 2015 IEEE International Instrumentation and Measurement Technology Conference - The "Measurable" of Tomorrow: Providing a Better Perspective on Complex Systems, I2MTC 2015 - Proceedings. 2015. p. 1900-1905. 7151571. (Conference Record - IEEE Instrumentation and Measurement Technology Conference). doi: 10.1109/I2MTC.2015.7151571

Building a gonioreflectometer - a geometrical evaluation

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