Results 171 to 180 of about 11,336 (222)
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2013
3D imaging and multi-pixel rangefinding constitute one of the most important and innovative fields of research in image sensor science and engineering in the past years. In rangefinding, one computes the Time-Of-Flight of a ray of light, generated by a mono-chromatic or wide-spectral source, from the source through the reflection of a target object and
Edoardo Charbon +4 more
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3D imaging and multi-pixel rangefinding constitute one of the most important and innovative fields of research in image sensor science and engineering in the past years. In rangefinding, one computes the Time-Of-Flight of a ray of light, generated by a mono-chromatic or wide-spectral source, from the source through the reflection of a target object and
Edoardo Charbon +4 more
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2014 IEEE International Symposium on Circuits and Systems (ISCAS), 2014
We present a low-light vision system platform that enables the testing and implementation of optic flow algorithms and kernel operations for micro-air vehicle navigation and obstacle avoidance capabilities. The system includes a 7×7 array of actively-quenched large-area single photon avalanche diodes, each having a compact 9-bit analog counter, and ...
Andrew Berkovich, Pamela Abshire
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We present a low-light vision system platform that enables the testing and implementation of optic flow algorithms and kernel operations for micro-air vehicle navigation and obstacle avoidance capabilities. The system includes a 7×7 array of actively-quenched large-area single photon avalanche diodes, each having a compact 9-bit analog counter, and ...
Andrew Berkovich, Pamela Abshire
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SPADS: Publisher Anonymization for DHT Storage
2010 IEEE Tenth International Conference on Peer-to-Peer Computing (P2P), 2010Many distributed applications, such as collaborative Web mapping, collaborative feedback and ranking, or bug reporting systems, rely on the aggregation of privacy-sensitive information gathered from human users. This information is typically aggregated at servers and later used as the basis for some collaborative service.
Pascal Felber +4 more
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Crosstalk mapping in CMOS SPAD arrays
2016 46th European Solid-State Device Research Conference (ESSDERC), 2016Optical crosstalk is one of the main factors limiting the performance of Single-Photon Avalanche Diode (SPAD) arrays and Silicon Photomultipliers (SiPMs). In this paper, a set of crosstalk measurements on a CMOS SPAD pixel array with 50µm × 75µm pitch and 51.6% Fill Factor, designed for direct particle detection, is reported.
Andrea Ficorella +8 more
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Compact readout circuits for SPAD arrays
Proceedings of 2010 IEEE International Symposium on Circuits and Systems, 2010Single Photon Avalanche Diodes (SPADs) create a very short duration voltage pulse whenever a photon is detected. The resulting high sensitivity and temporal resolution makes them useful in a range of applications. In this paper two different analogue circuits are reported that are suitable for imaging applications that can record the number of detected
Danial Chitnis, Steve Collins
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SPADA: An Array of SPAD Detectors for Astrophysical Applications
Experimental Astronomy, 2006Astrophysical studies require accurate, sensitive and fast detectors to detect faint sources with high variability. Recently an array of Single Photon Avalanche Diodes (SPAD), SPADA, has been developed. This array is suitable for competitive adaptive optics operations and fast transient image acquisition at a fraction of the current cost of imaging ...
Bonanno G +9 more
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The antibacterial effect of SPAD.
Egyptian dental journal, 1992The antibacterial effect of SPAD, a root canal obturation paste containing paraformaldehyde, was examined and compared with that of calcium hydroxide apexification paste (Pulpdent). Both materials were either immediately placed in cultures containing streptococci group D, isolated from infected root canals, stored in an incubator for 3, 7 and 15 days ...
M M, Negm, M A, Kataia
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Compound semiconductor SPAD arrays
SPIE Proceedings, 2013Single photon avalanche diodes (SPADs) are revolutionizing ultra-sensitive photodetection applications, providing single photon sensitivity, high quantum efficiency and low dark noise at or near room temperature. When aggregated into arrays, these devices have demonstrated the ability to operate as photon number resolving detectors with wide dynamic ...
Eric S. Harmon +2 more
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Proceedings of the 2011 ACM Symposium on Applied Computing, 2011
Debugging could be a threat to system security when adopted by malicious attackers. The major challenges of software-only anti-debugging are compromised strategy and lack of self-protection. Leveraging hardware virtualization, we proposes a strategy of software protection through anti-debugging which imperceptibly monitors the debug event on a higher ...
Qian Lin 0002 +8 more
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Debugging could be a threat to system security when adopted by malicious attackers. The major challenges of software-only anti-debugging are compromised strategy and lack of self-protection. Leveraging hardware virtualization, we proposes a strategy of software protection through anti-debugging which imperceptibly monitors the debug event on a higher ...
Qian Lin 0002 +8 more
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Przeglad lekarski, 2012
The number of patients admitted to toxicological units due to acute liver failure (ALF) and acute-on-chronic liver failure (AoChLF) has been increasing in recent years. Various methods of extracorporeal liver support have been described in this paper, with particular emphasis on modified single pass albumin dialysis (SPAD).1.
Marek, Wiśniewski +3 more
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The number of patients admitted to toxicological units due to acute liver failure (ALF) and acute-on-chronic liver failure (AoChLF) has been increasing in recent years. Various methods of extracorporeal liver support have been described in this paper, with particular emphasis on modified single pass albumin dialysis (SPAD).1.
Marek, Wiśniewski +3 more
openaire +1 more source