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Mostrando ítems 11-20 de 153
Ponencia
Design of a smart SiPM based on focal-plane processing elements for improved spatial resolution in PET
(The International Society for Optics and Photonics, 2011)
Single-photon avalanche diodes are compatible with standard CMOS. It means that photo-multipliers for scintillation detectors in nuclear medicine (i. e. PET, SPECT) can be built in inexpensive technologies. These silicon ...
Ponencia
A CMOS 0.18μm 64×64 single photon image sensor with in-pixel 11b time-to-digital converter
(Institute of Electrical and Electronics Engineers, 2014)
The design and characterization of a CMOS 64×64 single-photon avalanche-diode (SPAD) array with in-pixel 11b time-to-digital converter (TDC) is presented. It is targeted for time-resolved imaging, in particular 3D imaging. ...
Ponencia
Pipeline AER arbitration with event aging
(Institute of Electrical and Electronics Engineers, 2017)
We present a simple circuit to handle communication between cells of neuromorphic arrays. It allows cells to operate continuously without waiting for acknowledgement signals back from the AER (Address Event Representation) ...
Ponencia
Live Demonstration: Gaussian Pyramid Extraction with a CMOS Vision Sensor
(Institute of Electrical and Electronics Engineers, 2015)
This live demonstration showcases the Gaussian pyramid with a CMOS vision sensor. The chip features a 176 120 pixel array in standard 0.18 m CMOS technology. The sensing elements are designed as 3-Transistor Active Pixel ...
Ponencia
On-site forest fire smoke detection by low-power autonomous vision sensor
(2010)
Early detection plays a crucial role to prevent forest fires from spreading. Wireless vision sensor networks deployed throughout high-risk areas can perform fine-grained surveillance and thereby very early detection and ...
Ponencia
A Sub-µW Reconfigurable Front-End for Invasive Neural Recording
(Institute of Electrical and Electronics Engineers, 2019)
This paper presents a sub-μW ac-coupled reconfigurable front-end for the purpose of neural recording. The proposed topology embeds in it filtering capabilities allowing it to select among different frequency bands inside ...
Ponencia
Photon Counting and Direct ToF Camera Prototype Based on CMOS SPADs
(Institute of Electrical and Electronics Engineers, 2017)
This paper presents a camera prototype for 2D/3D image capture in low illumination conditions based on single-photon avalanche-diode (SPAD) image sensor for direct time-offlight (d-ToF). The imager is a 64×64 array with ...
Tesis Doctoral
Design of CMOS Digital Silicon Photomultipliers with ToF for Positron Emission Tomography
(2020-05-29)
This thesis presents a contribution to the design of single-photon detectors for medical imaging. Specifically, the focus has been on the development of a pixel capable of single-photon counting in CMOS technology, and ...
Ponencia
Simplified state update calculation for fast and accurate digital emulation of CNN dynamics
(Institute of Electrical and Electronics Engineers, 2010)
Compared to other one-step integration methods, the 4th-order Runge-Kutta is much more accurate while still consisting in a rather reduced algorithmic structure. However, in terms of the computing power, it is more expensive ...
Ponencia
Form Factor Improvement of Smart-Pixels for Vision Sensors through 3-D Vertically- Integrated Technologies
(Institute of Electrical and Electronics Engineers, 2014)
While conventional CMOS active pixel sensors embed only the circuitry required for photo-detection, pixel addressing and voltage buffering, smart pixels incorporate also circuitry for data processing, data storage and ...