Buscar
Mostrando ítems 521-530 de 592
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 ...
Ponencia
Study of Non-Linear S/H Operation in Switched-Current Circuits Using Volterra Series - Application to BandPass Sigma-Delta Modulators
(2001)
This paper analyses the transient behaviour of SwItched-current (SI) memory cells placed at the front-end of high-speed A/D interfaces. Based on the Volterra series method, the non-linear sampling process occurring in ...
Ponencia
Electrical-level synthesis of pipeline ADCs
(Institute of Electrical and Electronics Engineers, 2008)
This paper presents a design tool for the synthesis of pipeline ADCs which is able to optimally map high-level converter specifications, such as the required effective resolution, onto electrical-level parameters, i.e., ...
Ponencia
Realization of a CNN universal chip in CMOS technology
(Institute of Electrical and Electronics Engineers, 1995)
This paper describes the design of a programmable Cellular Neural Network (CNN) chip, with additional functionalities similar to those of the CNN Universal Chip. The prototype, which contains 1024 cells, has been designed ...
Ponencia
Top-Down Design of a xDSL 14-bit 4MSh ZA Modulator in Digital CMOS Technology
(Institute of Electrical and Electronics Engineers, 2001)
This paper describes the design of a Sigma-Delta modulator aimed for A/D conversion in xDSL applications, featuring 14-bit@4Msample/s in a 0.35μm mainstream digital CMOS technology. Architecture selection, modulator sizing ...
Ponencia
Programmable resolution imager for imaging applications
(SPIE- The International Society for Optical Engineering, 2000)
In this paper a programmable imager with averaging capabilities will be described which is intended for averaging of different groups or sets of pixels formed by n×n kernels, n×m kernels or any group of randomly-selected ...
Ponencia
Demo: Image Sensing Scheme Enabling Fully-Programmable Light Adaptation and Tone Mapping with a Single Exposure
(Association for Computing Machinery, 2016)
This demo showcases a High Dynamic Range (HDR) technique recently reported. We demonstrate that two intertwined photodiodes per pixel can perform tone mapping under unconstrained illumination conditions with a single ...
Artículo
On spike-timing-dependent-plasticity, memristive devices, and building a self-learning visual cortex
(Frontiers Media, 2011)
In this paper we present a very exciting overlap between emergent nanotechnology and neuroscience, which has been discovered by neuromorphic engineers. Specifically, we are linking one type of memristor nanotechnology ...
Ponencia
CMOS realization of a 2-layer CNN universal machine chip
(Institute of Electrical and Electronics Engineers, 2002)
Some of the features of the biological retina can be modelled by a cellular neural network (CNN) composed of two dynamically coupled layers of locally connected elementary nonlinear processors. In order to explore the ...
Ponencia
A prototype node for wireless vision sensor network applications development
(Institute of Electrical and Electronics Engineers, 2010)
This paper presents a prototype vision-enabled sensor node based on a commercial vision system of reduced size and power consumption. The wireless infrastructure for the deployment of a distributed smart camera network ...