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Mostrando ítems 1-10 de 18
Ponencia
A complete retargeting methodology for mixed-signal IC designs
(Institute of Electrical and Electronics Engineers, 2001)
In this paper, an efficient methodology to retargeting and reuse of embedded mixed-signal blocks is presented. Parametrized layout templates, accurate behavioral modeling of mixed-signal blocks, and appropriate mechanisms ...
Ponencia
A 176x144 148dB adaptive tone-mapping imager
(Society of Photo-Optical Instrumentation Engineers, 2012)
This paper presents a 176x144 (QCIF) HDR image sensor where visual information is simultaneously captured and adaptively compressed by means of an in-pixel tone mapping scheme. The tone mapping curve (TMC) is calculated ...
Ponencia
Demo: Results of 'iCaveats', a Project on the Integration of Architectures and Components for Embedded Vision
(ACM Digital Library, 2018)
iCaveats is a Project on the integration of components and architectures for embedded vision in transport and security applications. A compact and efficient implementation of autonomous vision systems is difficult to be ...
Ponencia
Color Tone-Mapping Circuit for a Focal-Plane Implementation
(IEEE, 2018)
In this article, we present a review of the driving principles and parameters of a previously reported focal-plane tone-mapping operator. We then extend it in order to include color information processing. The signal ...
Ponencia
A 148dB focal-plane tone-mapping QCIF imager
(Institute of Electrical and Electronics Engineers, 2012)
This paper presents a QCIF HDR imager where visual information is simultaneously captured and adaptively compressed by an in-pixel tone-mapping scheme [1]. The tone mapping curve (TMC) is calculated from the histogram of ...
Ponencia
A modulator/demodulator CMOS IC for chaotic encryption of audio
(Institute of Electrical and Electronics Engineers, 1995)
This paper reports the first experimental verification of chaotic encryption of audio signals using integrated circuits. It is based on a gm-Cmodu¬ lator/demodulator analog CMOS IC that implements a 3rd-order nonlinear ...
Ponencia
A 2.5MHz 55dB Switched-Current BandPass ΣΔ Modulator for AM Signal Conversion
(Institute of Electrical and Electronics Engineers, 1997)
We present a Switched-Current (SI) fourth-order bandpass ΣΔ modulator IC prototype. It uses fully-differential circuits in 0.8μm CMOS technology to obtain a Dynamic Range (DR) larger than 55dB at 2.5MHz center frequency ...
Ponencia
Comparison of the DR of continuous time Gm-C filters using different structures
(World Scientific and Engineering Academy and Society, 2006)
This paper presents design techniques to evaluate the noise and distortion of continuous time Gm-C filters. Also presents techniques to improve the dynamic range of such filters keeping a relation of integer numbers between ...
Ponencia
Concurrent focal-plane generation of compressed samples fromtime-encoded pixel values
(IEEE, 2018)
Compressive sampling allows wrapping the relevant content of an image in a reduced set of data. It exploits the sparsity of natural images. This principle can be employed to deliver images over a network under a restricted ...
Ponencia
A CMOS vision system on-chip with multicore sensory processing ar- chitecture for image analysis above 1,000F/s
(Spie, 2010)
This paper describes a Vision-System-on-Chip (VSoC) capable of doing: image acquisition, image processing through on-chip embedded structures, and generation of pertinent reaction commands at thousand’s frame-per-second ...