Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Adaptation of an Iterative PCA to a Manycore Architecture for Hyperspectral Image Processing
Year:2018
Research Areas
  • Electronic technology and of the communications
Information
Abstract
This paper presents a study of the adaptation of a Non-Linear Iterative Partial Least Squares (NIPALS) algorithm applied to Hyperspectral Imaging to a Massively Parallel Processor Array manycore architecture, which assembles 256 cores distributed over 16 clusters. This work aims at optimizing the internal communications of the platform to achieve real-time processing of large data volumes with limited computational resources and memory bandwidth. As hyperspectral images are composed of extensive volumes of spectral information, real-time requirements, which are upper-bounded by the image capture rate of the hyperspectral sensor, are a challenging objective. To address this issue, the image size is usually reduced prior to the processing phase, which is itself a computationally intensive task. Consequently, this paper proposes an analysis of the intrinsic parallelism and the data dependency within the NIPALS algorithm and its subsequent implementation on a manycore architecture. Furthermore, this implementation has been validated against three hyperspectral images extracted from both remote sensing and medical datasets. As a result, an average speedup of 17× has been achieved when compared to the sequential version. Finally, this approach has been compared with other state-of-the-art implementations, outperforming them in terms of performance.
International
Si
JCR
Si
Title
Journal of Signal Processing Systems For Signal Image And Video Technology
ISBN
1939-8018
Impact factor JCR
1,023
Impact info
Datos JCR del año 2017
Volume
10.1007/s11265-018-1380-9
Journal number
From page
1
To page
13
Month
MAYO
Ranking
Participants
  • Autor: Raquel Lazcano Lopez (UPM)
  • Autor: Daniel Madroñal Quintin (UPM)
  • Autor: Himar Fabelo (Research Institute for Applied Microelectronics (IUMA)University of Las Palmas de Gran Canaria (ULPGC))
  • Autor: Samuel Ortega (Research Institute for Applied Microelectronics (IUMA)University of Las Palmas de Gran Canaria (ULPGC))
  • Autor: Ruben Salvador Perea (UPM)
  • Autor: Gustavo Marrero Callicó (Research Institute for Applied Microelectronics (IUMA)University of Las Palmas de Gran Canaria (ULPGC))
  • Autor: Eduardo Juarez Martinez (UPM)
  • Autor: Cesar Sanz Alvaro (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Grupo de Diseño Electrónico y Microelectrónico
  • Centro o Instituto I+D+i: Centro de Investigación en Tecnologías del Software y Sistemas Multimedia para la Sostenibilidad (CITSEM)
  • Departamento: Ingeniería Telemática y Electrónica
S2i 2021 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)