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
Research Areas
  • Electronic technology and of the communications
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.
Journal of Signal Processing Systems For Signal Image And Video Technology
Impact factor JCR
Impact info
Datos JCR del año 2017
Journal number
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  • 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)