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Mostrando ítems 51-60 de 145
Capítulo de Libro
Towards an ultra‐low‐power low‐cost wireless visual sensor node for fine‐grain detection of forest fires
(Universidade de Coimbra, 2014)
Advances in electronics, sensor technologies, embedded hardware and software are boosting the application scenarios of wireless sensor networks. Specifically, the incorporation of visual capabilities into the nodes means ...
Ponencia
An Experimentally-Validated Verilog-A SPAD Model Extracted from TCAD Simulation
(Institute of Electrical and Electronics Engineers, 2018)
Single-photon avalanche diodes (SPAD) are photodetectors with exceptional characteristics. This paper proposes a new approach to model them in Verilog-A HDL with the help of a powerful tool: TCAD simulation. Besides, to ...
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 ...
Ponencia
Robust symmetric multiplication for programmable analog VLSI array processing
(Institute of Electrical and Electronics Engineers, 2006)
This paper presents an electrically programmable analog multiplier. The circuit performs the multiplication between an input variable and an electrically selectable scaling factor. The multiplier is divided in several ...
Ponencia
Experimental Evidence of Power Efficiency due to Architecture in Cellular Processor Array Chips
(Institute of Electrical and Electronics Engineers, 2016)
Speeding up algorithm execution can be achieved by increasing the number of processing cores working in parallel. Of course, this speedup is limited by the degree to which the algorithm can be parallelized. Equivalently, ...
Tesis Doctoral
Design of readout channels for time-of-flight image sensors based on a 28-nm FPGA
(2023-03-24)
This thesis presents a contribution to the design of readout channels for time-of-flight image sensors. Specifically, the focus has been on the development of time-to-digital converters (TDCs) based on a 28-nm field-prog ...
Artículo
IC-PCR 1000 control using a wireless sensor network (WSN)
(International Association of Computer Science and Information Technology, 2012)
We put forward in this paper a new methodbased on a Wireless Sensor Network from Crossbowtechnology for the IC-PCR1000 control and communication tolessen the impact of the unwanted EMI. This method is a newmethod that ...
Artículo
Image Sensing Scheme Enabling Fully-Programmable Light Adaptation and Tone Mapping with a Single Exposure
(Institute of Electrical and Electronics Engineers, 2016)
This letter presents new insights into a high dynamic range (HDR) technique recently reported. We demonstrate that two intertwined photodiodes per pixel can perform tone mapping under unconstrained illumination conditions ...
Ponencia
SIRENA: A simulation environment for CNNs
(Institute of Electrical and Electronics Engineers, 1994)
SIRENA is a general simulation environment for artificial neural networks, with emphasis towards CNNs. A special interest has been placed in allowing the simulation and modelling of the non-ideal effects expected from VLSI ...
Ponencia
Gaussian Pyramid Extraction with a CMOS Vision Sensor
(Institute of Electrical and Electronics Engineers, 2014)
This paper addresses a CMOS vision sensor with 176 × 120 pixels in standard 0.18 μm CMOS technology that computes the Gaussian pyramid. The Gaussian pyramid is extracted with a double-Euler switched-capacitor network, ...