@inproceedings{ordonezmuller_2015, abstract = {In infrared thermography, the temperature measured by a thermal imaging device varies with the position and orientation of the camera with respect to an object's surface. 3D thermography has hence the potential to depict the surface temperature of objects with higher fidelity than conventional 2D thermography. So far the problem of assigning temperature values that correspond to the same surface but were obtained from different perspectives has been addressed by simply overwriting previous values with new values or by averaging the measured values according to a weighted averaging scheme. A new approach to map temperature values onto a 3D model is proposed that results in a more faithful representation of an object's real surface temperature in form of a 3D thermogram. Temperature values are assigned in real time to the 3D model taking into consideration the observation conditions under which they were measured. These conditions are also made available to the user in form of textured 3D models, where the texture color depicts the level of confidence associated to the thermal measurements. These textures provide useful additional information about the 3D thermogram. The new approach is especially helpful in the real-time generation of 3D thermograms as the user gets live feedback on the quality of the thermal model being generated.}, address = {Auckland, New Zealand}, author = {Ordonez Müller, Antonio and Kroll, A.}, booktitle = {9th International Conference on Sensing Technology (ICST 2015)}, comment = {======= Review 1 ======= > *** Guidance for Authors: Please describe in detail main paper contributions, positive aspects, observed deficiencies, and suggestions on how to improve them: This is a well presented paper that stakes a clear claim for improved creation of 3D thermograms. It will be interesting in future to see the results of a comparison between the imaging system and independent (e.g. contact) temperature measurements of the same objects. > *** Overall Rating: Do you recommend acceptance or rejection? Accept (5) > *** Presentation: How would you rate the presentation of this paper? Strong Accept (6) > *** Technical Quality: How would you rate the technical quality of this paper? Accept (5) > *** Significance of Topic: Is this topic significant to ICST 2015? Accept (5) > *** Originality: How would you rate the originality of the paper? Accept (5) ======= Review 2 ======= > *** Guidance for Authors: Please describe in detail main paper contributions, positive aspects, observed deficiencies, and suggestions on how to improve them: Very interesting work. What is the resolution of such images? > *** Overall Rating: Do you recommend acceptance or rejection? Strong Acception (6) > *** Presentation: How would you rate the presentation of this paper? Strong Accept (6) > *** Technical Quality: How would you rate the technical quality of this paper? Strong Accept (6) > *** Significance of Topic: Is this topic significant to ICST 2015? Strong Accept (6) > *** Originality: How would you rate the originality of the paper? Strong Accept (6)}, doi = {10.1109/ICSensT.2015.7438397}, interhash = {d253ae4aef866b58bfbf2d3a811b9c38}, intrahash = {5faf522e84482f866ecd70efafd6223e}, language = {english}, month = {December 8. -- 10.}, mrtnote = {robotair, peer}, owner = {Ordonez Müller}, pages = {235-240}, privnote = {======= Review 1 ======= > *** Guidance for Authors: Please describe in detail main paper contributions, positive aspects, observed deficiencies, and suggestions on how to improve them: This is a well presented paper that stakes a clear claim for improved creation of 3D thermograms. It will be interesting in future to see the results of a comparison between the imaging system and independent (e.g. contact) temperature measurements of the same objects. > *** Overall Rating: Do you recommend acceptance or rejection? Accept (5) > *** Presentation: How would you rate the presentation of this paper? Strong Accept (6) > *** Technical Quality: How would you rate the technical quality of this paper? Accept (5) > *** Significance of Topic: Is this topic significant to ICST 2015? Accept (5) > *** Originality: How would you rate the originality of the paper? Accept (5) ======= Review 2 ======= > *** Guidance for Authors: Please describe in detail main paper contributions, positive aspects, observed deficiencies, and suggestions on how to improve them: Very interesting work. What is the resolution of such images? > *** Overall Rating: Do you recommend acceptance or rejection? Strong Acception (6) > *** Presentation: How would you rate the presentation of this paper? Strong Accept (6) > *** Technical Quality: How would you rate the technical quality of this paper? Strong Accept (6) > *** Significance of Topic: Is this topic significant to ICST 2015? Strong Accept (6) > *** Originality: How would you rate the originality of the paper? Strong Accept (6)}, title = {On the Temperature Assignment Problem and the Use of Confidence Textures in the Creation of 3D Thermograms}, url = {https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7438397}, year = 2015 } @inproceedings{ordonezmuller_2013b, abstract = {Early detection of gas leakages in petrochemical plants is of great concern due to their potential threat to human safety, the environment and the infrastructure. Hand-held devices based on Tunable Diode Laser Absorption Spectroscopy (TDLAS) technology have proven to be an effective way to detect and locate such leaks. The theory behind these devices is well documented, but little information is available on the effects that laser beam divergence has on the ability to detect gas plumes at long distances. This contribution attempts to explain how the background reflectance and the laser intensity profile affect the concentration readings as the distance to the objects under inspection increases.}, address = {Turin, Italy}, author = {Ordonez Müller, Antonio and Kroll, A.}, booktitle = {International Workshop on Advanced Infrared Technology and Applications - AITA 2013}, file = {Präsentation:M\:\\Bibliothek\\MRT\\Publikationen\\AITA_2013\\mueller\\Effects of beam divergence in hand-held TDLAS sensors on long distance gas concentration measurements.pptx:PowerPoint;Paper:M\:\\Bibliothek\\MRT\\Publikationen\\AITA_2013\\mueller\\Effects of beam divergence in hand-held TDLAS sensors on long distance gas concentration measurements.pdf:PDF}, interhash = {e374c103cf697ff3b522cf31de637dc9}, intrahash = {147466f80b629f7f16ee317da34dee89}, language = {english}, month = {Sept. 10-13}, mrtnote = {robogas,nopeer,pke}, owner = {Ordonez Müller}, pages = {9-13}, title = {Effects of beam divergence in hand-held TDLAS sensors on long distance gas concentration measurements}, url = {http://ronchi.isti.cnr.it/AITA2013}, volume = 12, year = 2013 } @article{ordonezmuller_2016, abstract = {Infrared thermography is a widely used technique to measure and portray the surface temperature of an object in form of thermal images. Two dimensional images, however, have some inherent limitations with regard to the fidelity with which they can depict the surface temperature of a three dimensional object. In the past two decades, there have been several works describing different techniques to generate 3D models textured with thermal information using various combinations of sensors in order to address some of these limitations. Most of these approaches generate 3D thermograms of an object from a single perspective with bulky measurement systems and therefore do not address problems that arise when scanning objects in a continuous manner from multiple perspectives. But reductions in cost, size and weight of infrared and depth-sensing cameras as well as a significant increase in computational power of personal computers have enabled the development of low cost, handheld, real-time 3D thermal imaging systems. This article elaborates through a series of experiments on the main factors that affect the real-time generation of high fidelity 3D thermograms with such a system and demonstrates how taking this factors into consideration significantly improves the appearance and fidelity of the generated 3D thermogram. Most of the insight gained in this article can be transferred to 3D thermal imaging systems based on other combination of sensors.}, author = {Ordonez Müller, Antonio and Kroll, A.}, doi = {10.1109/JSEN.2016.2621166}, interhash = {649a5600af4e137b481300147e8d2f18}, intrahash = {8a1c165cacf1b6646859f1c87b2449ee}, journal = {IEEE Sensors Journal}, language = {English}, month = {February}, number = 3, owner = {duerrbaum}, pages = {774-783}, title = {Generating High Fidelity 3D Thermograms with a Handheld Real-time Thermal Imaging System}, url = {http://ieeexplore.ieee.org/document/7676356/}, volume = 17, year = 2017 } @inproceedings{ordonezmuller_2014, address = {Baden-Baden, Germany}, author = {Ordonez Müller, Antonio and Kroll, A.}, booktitle = {Automation 2014}, file = {Präsentation:Publikationen\\AUTOMATION\\2014\\AutomationKongress2014b.pptx:PowerPoint 2007+;Paper:Publikationen\\AUTOMATION\\2014Zum Einsatz autonomer kooperierende mobiler Roboter mit aktiver optischer Fernmesstechnik für Roboter-basierte Inspektionen.pdf:PDF}, interhash = {0472ada4a1bf1caba5ed05687fa74a1c}, intrahash = {02a23f7bd0df1e45553186f23a113607}, language = {english}, month = {July 1. -- 2.}, mrtnote = {robogas, nopeer,pke}, owner = {Ordonez Müller}, title = {On the use of Cooperative Autonomous Mobile Robots and Optical Remote Sensing in Inspection Robotics}, url = {http://www.automatisierungskongress.de/}, year = 2014 } @inproceedings{ordonezmuller_2013a, abstract = {Uncontrolled emissions of harmful gases pose a real threat to human safety and the environment. A cost effective way to effectively monitor the presence of such gases in large environments like industrial plants is highly desirable. This paper discusses the issues that arise when using retro-reflectors to extend the operating range of a commercial device that utilizes Tunable Diode Laser Absorption Spectroscopy (TDLAS) for remote gas sensing.}, address = {EXCO, Daegu, Korea}, author = {Ordonez Müller, Antonio and Kroll, A.}, booktitle = {International Symposium on Olfaction and Electronic Nose -- {ISOEN} 2013}, file = {Präsentation:M\:\\Bibliothek\\MRT\\Publikationen\\ISOEN_2013\\On Range Extension of TDLAS Based Devices in Remote Gas Sensing Applications_presented.pptx:PowerPoint;Paper:M\:\\Bibliothek\\MRT\\Publikationen\\ISOEN_2013\\On Range Extension of TDLAS Based Devices in Remote Gas Sensing Applications_BMBF.pdf:PDF}, interhash = {6058665fc1367793f24f1c38ed240589}, intrahash = {58c5015afdd4a21ea80801786089efb9}, language = {english}, month = {July 2-5}, mrtnote = {robotair, peer}, owner = {Ordonez Müller}, title = {On Range Extension of Tunable Diode Laser Absorption Spectroscopy (TDLAS) Based Devices in Remote Gas Sensing Applications}, url = {https://www.olfactionsociety.org/event/isoen-2013}, year = 2013 } @techreport{Robogas01MA09023A, address = {Universität Kassel}, author = {Bonow, Gero and Cramar, Liubov and Hegenberg, Jens and Kroll, Andreas and Müller, Antonio Ordonez and Schmidt, Ludger and Soldan, Samuel}, institution = {FG Mess- und Regelungstechnik}, interhash = {f67df375d9e96385933b10db49c48e4e}, intrahash = {f40ba67e5e414b09d7416404b2ce2d99}, language = {german}, mrtnr = {RP1}, title = {Mensch-Roboter-Interaktion und Mess-/Inspektionsstrategie}, type = {Schlussbericht zum Forschungsprojekt}, year = 2013 } @inproceedings{ordonezmuller_2015, abstract = {In infrared thermography, the temperature measured by a thermal imaging device varies with the position and orientation of the camera with respect to an object's surface. 3D thermography has hence the potential to depict the surface temperature of objects with higher fidelity than conventional 2D thermography. So far the problem of assigning temperature values that correspond to the same surface but were obtained from different perspectives has been addressed by simply overwriting previous values with new values or by averaging the measured values according to a weighted averaging scheme. A new approach to map temperature values onto a 3D model is proposed that results in a more faithful representation of an object's real surface temperature in form of a 3D thermogram. Temperature values are assigned in real time to the 3D model taking into consideration the observation conditions under which they were measured. These conditions are also made available to the user in form of textured 3D models, where the texture color depicts the level of confidence associated to the thermal measurements. These textures provide useful additional information about the 3D thermogram. The new approach is especially helpful in the real-time generation of 3D thermograms as the user gets live feedback on the quality of the thermal model being generated.}, address = {Auckland, New Zealand}, author = {Ordonez Müller, Antonio and Kroll, A.}, booktitle = {9th International Conference on Sensing Technology (ICST 2015)}, interhash = {d253ae4aef866b58bfbf2d3a811b9c38}, intrahash = {5faf522e84482f866ecd70efafd6223e}, language = {english}, month = {December 8. - 10.}, mrtnote = {robotair, peer}, owner = {Ordonez Müller}, pages = {235-240}, review = {======= Review 1 ======= > *** Guidance for Authors: Please describe in detail main paper contributions, positive aspects, observed deficiencies, and suggestions on how to improve them: This is a well presented paper that stakes a clear claim for improved creation of 3D thermograms. It will be interesting in future to see the results of a comparison between the imaging system and independent (e.g. contact) temperature measurements of the same objects. > *** Overall Rating: Do you recommend acceptance or rejection? Accept (5) > *** Presentation: How would you rate the presentation of this paper? Strong Accept (6) > *** Technical Quality: How would you rate the technical quality of this paper? Accept (5) > *** Significance of Topic: Is this topic significant to ICST 2015? Accept (5) > *** Originality: How would you rate the originality of the paper? Accept (5) ======= Review 2 ======= > *** Guidance for Authors: Please describe in detail main paper contributions, positive aspects, observed deficiencies, and suggestions on how to improve them: Very interesting work. What is the resolution of such images? > *** Overall Rating: Do you recommend acceptance or rejection? Strong Acception (6) > *** Presentation: How would you rate the presentation of this paper? Strong Accept (6) > *** Technical Quality: How would you rate the technical quality of this paper? Strong Accept (6) > *** Significance of Topic: Is this topic significant to ICST 2015? Strong Accept (6) > *** Originality: How would you rate the originality of the paper? Strong Accept (6)}, title = {On the Temperature Assignment Problem and the Use of Confidence Textures in the Creation of 3D Thermograms}, url = {http://seat.massey.ac.nz/conferences/icst2015/}, year = 2015 } @inproceedings{ordonezmuller_2013b, abstract = {Early detection of gas leakages in petrochemical plants is of great concern due to their potential threat to human safety, the environment and the infrastructure. Hand-held devices based on Tunable Diode Laser Absorption Spectroscopy (TDLAS) technology have proven to be an effective way to detect and locate such leaks. The theory behind these devices is well documented, but little information is available on the effects that laser beam divergence has on the ability to detect gas plumes at long distances. This contribution attempts to explain how the background reflectance and the laser intensity profile affect the concentration readings as the distance to the objects under inspection increases.}, address = {Turin, Italy}, author = {Ordonez Müller, Antonio and Kroll, A.}, booktitle = {International Workshop on Advanced Infrared Technology and Applications - AITA 2013}, file = {Präsentation:M\:\\Bibliothek\\MRT\\Publikationen\\AITA_2013\\mueller\\Effects of beam divergence in hand-held TDLAS sensors on long distance gas concentration measurements.pptx:PowerPoint;Paper:M\:\\Bibliothek\\MRT\\Publikationen\\AITA_2013\\mueller\\Effects of beam divergence in hand-held TDLAS sensors on long distance gas concentration measurements.pdf:PDF}, interhash = {e374c103cf697ff3b522cf31de637dc9}, intrahash = {147466f80b629f7f16ee317da34dee89}, language = {english}, month = {Sept. 10-13}, mrtnote = {robogas,nopeer,pke}, owner = {Ordonez Müller}, pages = {9-13}, title = {Effects of beam divergence in hand-held TDLAS sensors on long distance gas concentration measurements}, url = {http://ronchi.isti.cnr.it/AITA2013}, volume = 12, year = 2013 } @article{ordonezmuller_2016, abstract = {Infrared thermography is a widely used technique to measure and portray the surface temperature of an object in form of thermal images. Two dimensional images, however, have some inherent limitations with regard to the fidelity with which they can depict the surface temperature of a three dimensional object. In the past two decades, there have been several works describing different techniques to generate 3D models textured with thermal information using various combinations of sensors in order to address some of these limitations. Most of these approaches generate 3D thermograms of an object from a single perspective with bulky measurement systems and therefore do not address problems that arise when scanning objects in a continuous manner from multiple perspectives. But reductions in cost, size and weight of infrared and depth-sensing cameras as well as a significant increase in computational power of personal computers have enabled the development of low cost, handheld, real-time 3D thermal imaging systems. This article elaborates through a series of experiments on the main factors that affect the real-time generation of high fidelity 3D thermograms with such a system and demonstrates how taking this factors into consideration significantly improves the appearance and fidelity of the generated 3D thermogram. Most of the insight gained in this article can be transferred to 3D thermal imaging systems based on other combination of sensors.}, author = {Ordonez Müller, Antonio and Kroll, A.}, doi = {10.1109/JSEN.2016.2621166}, interhash = {649a5600af4e137b481300147e8d2f18}, intrahash = {8a1c165cacf1b6646859f1c87b2449ee}, journal = {IEEE Sensors Journal}, language = {English}, month = {February}, number = 3, owner = {duerrbaum}, pages = {774-783}, title = {Generating High Fidelity 3D Thermograms with a Handheld Real-time Thermal Imaging System}, url = {http://ieeexplore.ieee.org/document/7676356/}, volume = 17, year = 2017 } @inproceedings{ordonezmuller_2014, address = {Baden-Baden, Germany}, author = {Ordonez Müller, Antonio and Kroll, A.}, booktitle = {Automation 2014}, file = {Präsentation:Publikationen\\AUTOMATION\\2014\\AutomationKongress2014b.pptx:PowerPoint 2007+;Paper:Publikationen\\AUTOMATION\\2014Zum Einsatz autonomer kooperierende mobiler Roboter mit aktiver optischer Fernmesstechnik für Roboter-basierte Inspektionen.pdf:PDF}, interhash = {0472ada4a1bf1caba5ed05687fa74a1c}, intrahash = {02a23f7bd0df1e45553186f23a113607}, language = {english}, month = {July 1. - 2.}, mrtnote = {robogas, nopeer,pke}, owner = {Ordonez Müller}, title = {On the use of Cooperative Autonomous Mobile Robots and Optical Remote Sensing in Inspection Robotics}, url = {http://www.automatisierungskongress.de/}, year = 2014 } @inproceedings{ordonezmuller_2013a, abstract = {Uncontrolled emissions of harmful gases pose a real threat to human safety and the environment. A cost effective way to effectively monitor the presence of such gases in large environments like industrial plants is highly desirable. This paper discusses the issues that arise when using retro-reflectors to extend the operating range of a commercial device that utilizes Tunable Diode Laser Absorption Spectroscopy (TDLAS) for remote gas sensing.}, address = {EXCO, Daegu, Korea}, author = {Ordonez Müller, Antonio and Kroll, A.}, booktitle = {International Symposium on Olfaction and Electronic Nose - {ISOEN} 2013}, file = {Präsentation:M\:\\Bibliothek\\MRT\\Publikationen\\ISOEN_2013\\On Range Extension of TDLAS Based Devices in Remote Gas Sensing Applications_presented.pptx:PowerPoint;Paper:M\:\\Bibliothek\\MRT\\Publikationen\\ISOEN_2013\\On Range Extension of TDLAS Based Devices in Remote Gas Sensing Applications_BMBF.pdf:PDF}, interhash = {6058665fc1367793f24f1c38ed240589}, intrahash = {58c5015afdd4a21ea80801786089efb9}, language = {english}, month = {July 2-5}, mrtnote = {robotair, peer}, owner = {Ordonez Müller}, title = {On Range Extension of Tunable Diode Laser Absorption Spectroscopy (TDLAS) Based Devices in Remote Gas Sensing Applications}, url = {https://www.olfactionsociety.org/event/isoen-2013}, year = 2013 }