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355 results on '"Susin, Altamiro A."'

1. NoX: a Compact Open-Source RISC-V Processor for Multi-Processor Systems-on-Chip

Author

Silva, Anderson I., Susin, Altamiro, Kastensmidt, Fernanda L., Beck, Antonio Carlos S., and Azambuja, Jose Rodrigo

Subjects
Computer Science - Hardware Architecture, Computer Science - Computational Engineering, Finance, and Science
Abstract

IoT applications are one of the driving forces in making systems energy and power-efficient, given their resource constraints. However, because of security, latency, and transmission, we advocate for local computing through multi-processor systems-on-chip (MPSoCs) for edge computing. The RISC-V ISA has grown in academia and industry due to its flexibility. Still, available open-source cores cannot be seamlessly integrated into MPSoCs for a fast time to market. This paper presents NoX, a compact open-source plug-and-play 32-bit RISC-V core designed in System Verilog for efficient data processing in MPSoCs. NoX has a 4-stage single-issue in-order pipeline with full bypass, providing an efficient resource-constrained architecture. Compared to industry and academia resource-constrained RISC-V cores, NoX offers a better resource usage and performance trade-off.

Published
2024

2. Wheat Plots Segmentation for Experimental Agricultural Field from Visible and Multispectral UAV Imaging

Author

Parraga, Adriane, Doering, Dionisio, Atkinson, Joao Gustavo, Bertani, Thiago, de Oliveira Andrades Filho, Clodis, de Souza, Mirayr Raul Quadros, Ruschel, Raphael, Susin, Altamiro Amadeu, Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, Arai, Kohei, editor, Kapoor, Supriya, editor, and Bhatia, Rahul, editor

Published
2019
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4. Exploring NoC Mapping Strategies: An Energy and Timing Aware Technique

Author

Marcon, Cesar, Calazans, Ney, Moraes, Fernando, Susin, Altamiro, Reis, Igor, and Hessel, Fabiano

Subjects
Computer Science - Hardware Architecture
Abstract

Complex applications implemented as Systems on Chip (SoCs) demand extensive use of system level modeling and validation. Their implementation gathers a large number of complex IP cores and advanced interconnection schemes, such as hierarchical bus architectures or networks on chip (NoCs). Modeling applications involves capturing its computation and communication characteristics. Previously proposed communication weighted models (CWM) consider only the application communication aspects. This work proposes a communication dependence and computation model (CDCM) that can simultaneously consider both aspects of an application. It presents a solution to the problem of mapping applications on regular NoCs while considering execution time and energy consumption. The use of CDCM is shown to provide estimated average reductions of 40% in execution time, and 20% in energy consumption, for current technologies., Comment: Submitted on behalf of EDAA (http://www.edaa.com/)

Published
2007

5. Noise Figure Evaluation Using Low Cost BIST

Author

Negreiros, Marcelo, Carro, Luigi, and Susin, Altamiro A.

Subjects
Computer Science - Other Computer Science
Abstract

A technique for evaluating noise figure suitable for BIST implementation is described. It is based on a low cost single-bit digitizer, which allows the simultaneous evaluation of noise figure in several test points of the analog circuit. The method is also able to benefit from SoC resources, like memory and processing power. Theoretical background and experimental results are presented in order to demonstrate the feasibility of the approach., Comment: Submitted on behalf of EDAA (http://www.edaa.com/)

Published
2007

10. Real-time architectures for 3D video coding

Author

Afonso, Vladimir, primary, Saldanha, Mario, additional, Conceicao, Ruhan, additional, Perleberg, Murilo, additional, Porto, Marcelo, additional, Zatt, Bruno, additional, Susin, Altamiro, additional, and Agostini, Luciano, additional

Published
2019
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12. Hierarchical and Multiple Switching NoC with Floorplan Based Adaptability

Author

Matos, Debora, Reinbrecht, Cezar, Kreutz, Marcio, Palermo, Gianluca, Carro, Luigi, Susin, Altamiro, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Brisk, Philip, editor, de Figueiredo Coutinho, José Gabriel, editor, and Diniz, Pedro C., editor

Published
2013
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13. Namimote: A Low-Cost Sensor Node for Wireless Sensor Networks

Author

Müller, Ivan, de Freitas, Edison Pignaton, Susin, Altamiro Amadeu, Pereira, Carlos Eduardo, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Andreev, Sergey, editor, Balandin, Sergey, editor, and Koucheryavy, Yevgeni, editor

Published
2012
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14. The Need for Reconfigurable Routers in Networks-on-Chip

Author

Matos, Debora, Concatto, Caroline, Carro, Luigi, Kastensmidt, Fernanda, Susin, Altamiro, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Becker, Jürgen, editor, Woods, Roger, editor, Athanas, Peter, editor, and Morgan, Fearghal, editor

Published
2009
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15. A High Performance H.264 Deblocking Filter

Author

Rosa, Vagner, Susin, Altamiro, Bampi, Sergio, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Wada, Toshikazu, editor, Huang, Fay, editor, and Lin, Stephen, editor

Published
2009
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17. Motion Compensation Hardware Accelerator Architecture for H.264/AVC

Author

Zatt, Bruno, Ferreira, Valter, Agostini, Luciano, Wagner, Flávio R., Susin, Altamiro, Bampi, Sergio, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Mery, Domingo, editor, and Rueda, Luis, editor

Published
2007
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18. High Throughput Hardware Architecture for Motion Estimation with 4:1 Pel Subsampling Targeting Digital Television Applications

Author

Porto, Marcelo, Agostini, Luciano, Rosa, Leandro, Susin, Altamiro, Bampi, Sergio, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Mery, Domingo, editor, and Rueda, Luis, editor

Published
2007
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19. A Pipelined 8x8 2-D Forward DCT Hardware Architecture for H.264/AVC High Profile Encoder

Author

da Silva, Thaísa Leal, Diniz, Cláudio Machado, Vortmann, João Alberto, Agostini, Luciano Volcan, Susin, Altamiro Amadeu, Bampi, Sergio, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Mery, Domingo, editor, and Rueda, Luis, editor

Published
2007
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20. Run-Time Resources Management on Coarse Grained, Packet-Switching Reconfigurable Architecture: A Case Study Through the APACHES’ Platform

Author

Ngouanga, Alex, Sassatelli, Gilles, Torres, Lionel, Gil, Thierry, Suarez, André Borin, Susin, Altamiro Amadeu, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Dough, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Bertels, Koen, editor, Cardoso, João M. P., editor, and Vassiliadis, Stamatis, editor

Published
2006
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22. Biomass estimation of spring wheat with machine learning methods using UAV-based multispectral imaging

Author

Atkinson Amorim, João Gustavo, primary, Schreiber, Lincoln Vinicius, additional, de Souza, Mirayr Raul Quadros, additional, Negreiros, Marcelo, additional, Susin, Altamiro, additional, Bredemeier, Christian, additional, Trentin, Carolina, additional, Vian, André Luis, additional, de Oliveira Andrades-Filho, Clódis, additional, Doering, Dionísio, additional, and Parraga, Adriane, additional

Published
2022
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23. Gradient Pile up Algorithm for Edge Enhancement and Detection

Author

Guimarães, Leticia, Soares, André, Cordeiro, Viviane, Susin, Altamiro, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Campilho, Aurélio, editor, and Kamel, Mohamed, editor

Published
2004
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34. INL and DNL estimation based on noise for ADC test

Author

Flores, Maria da Gloria Cataldi, Negreiros, Marcelo, Carro, Luigi, and Susin, Altamiro A.

Subjects
Embedded system, System on a chip, Embedded systems -- Analysis, Analog to digital converters -- Analysis
Published
2004

42. A Hardware Accelerator for Onboard Spatial Resolution Enhancement of Hyperspectral Images.

Author

Viel, Felipe, Parreira, Wemerson Delcio, Susin, Altamiro Amadeu, and Zeferino, Cesar Albenes

Abstract

Hyperspectral images (HSIs) are the images that have a high spectral resolution with hundreds of bands. HSIs are widely used in the precise identification and classification of the materials and surfaces. However, they have a low spatial resolution caused by the limited capacity of the sensors responsible for capturing the images. In view of this, the preprocessing techniques are used to increase the spatial resolution of the HSIs and enable greater precision in the subsequent processing stages. This letter presents the development of a hardware accelerator specially designed to process a pansharpening algorithm that fuses the hyperspectral and panchromatic images to produce a high spatial resolution HSI. The experimental results demonstrate that the processor is energy-efficient and can be used for onboard processing in a small spacecraft, such as the satellites. [ABSTRACT FROM AUTHOR]

Published
2021
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44. An analytical method to predict the static performance of a planar actuator

Author

Flores, Aly F., Susin, Altamiro, A., and da Silveira, Marilia A.

Subjects
Electromagnetism -- Research, Business, Electronics, Electronics and electrical industries
Abstract

An analytical method for predicting the three-dimensional (3-D) magnetic flux density distribution in the air gap produced by permanent magnets of an electromagnetic planar actuator, was developed. The analytical 3-D model was validated by means of a finite-element model and by measurements. It allowed the understanding of the behavior of the flux density in the air gap and predicting the values of the involved forces. Index Terms--Analytical model of the air gap magnetic field, planar actuator, static forces.

Published
2003

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