| 1. |
- Cacciapuoti, S., et al.
(författare)
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A measurement software for professional training in early detection of melanoma
- 2020
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Ingår i: Applied Sciences. - : MDPI AG. - 2076-3417. ; 10:12
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Tidskriftsartikel (refereegranskat)abstract
- Software systems have been long introduced as support to the early detection of melanoma through the automatic analysis of suspicious skin lesions. Nevertheless, their behavior is not yet similar to the performance exhibited by expert dermatologists in terms of diagnostic accuracy. Instead, a software system should be adopted by non-experienced dermatologists in order to improve the measurement and detection results for skin atypical patterns and the accuracy of the corresponding second opinion. This paper describes an image-based measurement and classification system able to score pigmented skin lesions according to the Seven-Point Check-list diagnostic method. Focus is devoted to the measurement procedure of biological structures more closely related to the atypical character of the nevus. Moreover, the performances of the measurement system are evaluated by considering the support to dermatologists with different experiences during the clinical activity. © 2020 by the authors.
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| 2. |
- Carratu, M., et al.
(författare)
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Image based similarity detection in mechanical registers
- 2020
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Ingår i: Proceedings. - : Institute of Electrical and Electronics Engineers Inc.. - 9781728144603
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Konferensbidrag (refereegranskat)abstract
- Water leakage detection at the household level is going to become one of the most challenging goals in the fields of water metering and smart sensors. While sudden leakage seems to be easier to be noted, the small one is giving researchers a hard time. The main topic of this paper is the digital processing of mechanical register images to provide water flow rate metrics, which can allow small leakage detection. The register images are automatically gathered by an electronic add-on device, which is also featured with a short range antenna to communicate with a gateway. The image processing techniques and experimental test results are finally presented and discussed. The authors' research is funded by the European Association of National Metrology Institutes (EURAMET) within the European Metrology Program for Innovation and Research (EMPIR). © 2020 IEEE.
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| 3. |
- Carratu, M, et al.
(författare)
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Image Processing Technique for Improving the Sensitivity of Mechanical Register Water Meters to Very Small Leaks
- 2021
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Ingår i: Sensors. - : MDPI AG. - 1424-8220. ; 21:21
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Tidskriftsartikel (refereegranskat)abstract
- Discovering very small water leaks at the household level is one of the most challenging goals of smart metering. While many solutions for sudden leakage detection have been proposed to date, the small leaks are still giving researchers a hard time. Even if some devices can be found on the market, their capability to detect a water leakage barely reaches the sensitivity of the employed mechanical water meter, which was not designed for detecting small water leakages. This paper proposes a technique for improving the sensitivity of the mechanical register water meters. By implementing this technique in a suitable electronic add-on device, the improved sensitivity could detect very small leaks. This add-on device continuously acquires the mechanical register's digital images and, thanks to suitable image processing techniques and metrics, allows very small flows to be detected even if lower than the meter starting flow rate. Experimental tests were performed on two types of mechanical water meters, multijet and piston, whose starting flow rates are 8 L/h and 1 L/h, respectively. Results were very interesting in the leakage range of [1.0, 10.0] L/h for the multijet and even in the range [0.25, 1.00] L/h for the piston meter.
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| 4. |
- Di Leo, G., et al.
(författare)
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Smart Devices and Services for Smart City
- 2019
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Ingår i: Proceedings. - 9780998133126
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Konferensbidrag (refereegranskat)abstract
- Citizen quality of life can be improved through facilities and services that have been thought to ease citizen interaction with municipal authorities, offices and structures. All technologies and devices, used for developing these facilities, are the pillars of the Smart City idea: a City that adapts itself, at least in part, to citizens’ needs. Advanced Metering Infrastructure (AMI) could become the backbone of all the smart city projects. Other public services can be loaded on AMI’s to be smart and thus helping to find the affordability of investments. The paper deals with this topic by describing devices and results of a pilot project, which has been carried out in an Italian middle city (Salerno), to experience the use of RF 169MHz wM-bus based AMI. Experimental results regarding a set of about 2500 installed devices for gas and water metering, car parking management and elder tele-assistance, will be reported in detail to show convenience and problems of this approach.
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| 5. |
- Di Leo, G., et al.
(författare)
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Wireless Sensor Network in Smart City Pilots : The Case of Salerno in Italy (from 2015 to 2019)
- 2021
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Ingår i: Public Adm. Inf. Technol.. - Cham : Springer. ; , s. 303-322
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Konferensbidrag (refereegranskat)abstract
- Citizen quality of life can be improved through facilities and services that must be thought to ease citizen interaction with municipal authorities, offices, and structures. Advanced metering infrastructures (AMIs) can be proposed as the backbone of smart city projects. The chapter deals with this topic by describing devices and results of a pilot project designed and carried out by the authors for experiencing the RF 169 MHz wM-Bus in AMI. The AMI was installed in Salerno, an Italian middle city of about 1,40,000 inhabitants and covering a land area of 58.96 km2. Five public services have been loaded on the AMI to help find the affordability of necessary investments: gas and water metering, car parking management, elder tele-assistance, and pollution measurements. The pilot project has involved the 1.5% of the citizens in 11 city districts. Results provided a great amount of data and information about reliability and efficiency of devices and networks and have been held into account by the authors of the national standard on the shared management of the 169 MHz frequency band (UNI CEI TS 11762:2019). These results let understand that in the next future solutions like those described in the chapter can become products and services available for all citizens. © 2021, Springer Nature Switzerland AG.
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| 6. |
- Ruggiero, A., et al.
(författare)
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Accurate Measurement of Reciprocating Kinetic Friction Coefficient through Automatic Detection of the Running-In
- 2020
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Ingår i: IEEE Transactions on Instrumentation and Measurement. - : Institute of Electrical and Electronics Engineers Inc.. - 0018-9456 .- 1557-9662. ; 69:5, s. 2398-2407
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Tidskriftsartikel (refereegranskat)abstract
- Tribological tests are adopted to estimate the kinetic friction coefficient (COF) of the material of interest according to the American Society for Testing and Materials (ASTM) standard. Typically, for the measurement process, several replicas, as well as a postprocessing data treatment, are necessary to take into account the observed casual variability of the measurand. This article describes a statistical approach aiming to highlight the running-in phase and the most significant time intervals during the steady-state for each test replica. A two-steps procedure based on the adoption of the bootstrap method allows the automatic detection of the running-in time interval and the outlier filtering of the steady-state. Experimental activity has been carried out by performing multiple tests through the ball-on-flat tribometer in order to verify the improvement allowed by the authors' proposal about the dry friction COF measurement in terms of both accuracy and repeatability. © 1963-2012 IEEE.
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