نتایج جستجو برای: multidimensional signal processing

تعداد نتایج: 854967  

2004

In real-time multimedia processing systems a very large part of the power consumption is due to the data storage and data transfer. Moreover, the area cost is often largely dominated by memories. Hence, the optimization of the memory architecture is a crucial step in the design methodology for this type of applications. In deriving an optimized memory architecture, memory size computation is an...

Journal: :EURASIP J. Adv. Sig. Proc. 2010
Carlos López-Martínez Laurent Ferro-Famil Andreas Reigber

Synthetic Aperture Radar can be considered nowadays as an established and mature technology to obtain high-resolution two-dimensional reflectivity images of the Earth surface in nearly all weather conditions and independently of the day-night cycle. During a first period, ranging from their conception in the 1950s to the beginning of the 1990s, SAR systems were characterized by a single acquisi...

2003
Kalpana Seshadrinathan

Broadband wireless channels, where high data rates are transmitted, are extremely dispersive in nature. A fundamental challenge in the design of equalizers for the broadband case lies in reducing complexity. Broadband finite impulse response (FIR) beamformers employ a space-time antenna array which reduces the multipath delay spread to narrowband levels. Adaptive frequency-domain equalizers tha...

1995
Praveen K. Murthy Edward A. Lee

Multidimensional Synchronous Dataflow (MDSDF) [15][7] is a model of computation that has been proposed for specifying multidimensional multirate signal processing systems such as image and video processing algorithms. The model is an extension of synchronous dataflow (SDF) [14] and has all of the desirable properties of the SDF model such as static schedulability, exposition of data and functio...

2011
Marie-José Montpetit

almost been synonymous with machine vision, which suggests processing of data from cameras operating in the visible range, the trend is to use multiple modalities of inputs that include sensors such as radar and microphone arrays. The trend is to tackle the problem using a layered model starting with the sensor outputs and working through other layers such as front-end processing, object locali...

2015
Youssef Khmou Said Safi Miloud Frikel

This paper treats different aspects of entropy measure in classical information theory and statistical quantum mechanics, it presents the possibility of extending the definition of Von Neumann entropy to image and array processing. In the first part, we generalize the quantum entropy using singular values of arbitrary rectangular matrices to measure the randomness and the quality of denoising o...

Journal: :EURASIP J. Emb. Sys. 2017
Florin Balasa Noha Abuaesh Cristian V. Gingu Ilie I. Luican Hongwei Zhu

In real-time data-intensive multimedia processing applications, data transfer and storage significantly influence, if not dominate, all the major cost parameters of the design space—namely energy consumption, performance, and chip area. This paper presents an electronic design automation (EDA) methodology for the high-level design of hierarchical memory architectures in embedded data-intensive ...

Journal: :Foundations and Trends in Signal Processing 2012
Minh N. Do Yue M. Lu

Thanks to the explosive growth of sensing devices and capabilities, multidimensional (MD) signals — such as images, videos, multispectral images, light fields, and biomedical data volumes — have become ubiquitous. Multidimensional filter banks and the associated constructions provide a unified framework and an efficient computational tool in the formation, representation, and processing of thes...

Journal: :iranian journal of medical physics 0
ateke goshvarpour computational neuroscience laboratory, department of biomedical engineering, faculty of electrical engineering, sahand university of technology, tabriz, iran ataollah abbasi computational neuroscience laboratory, department of biomedical engineering, faculty of electrical engineering, sahand university of technology, tabriz, iran atefeh goshvarpour computational neuroscience laboratory, department of biomedical engineering, faculty of electrical engineering, sahand university of technology, tabriz, iran

introduction automatic human emotion recognition is one of the most interesting topics in the field of affective computing. however, development of a reliable approach with a reasonable recognition rate is a challenging task. the main objective of the present study was to propose a robust method for discrimination of emotional responses thorough examination of heart rate variability (hrv). in t...

2005
JIANPING ZHOU Jelena Kovačević

Multidimensional multirate systems have been used widely in signal processing, communications, and computer vision. Traditional multidimensional multirate systems are tensor products of one-dimensional systems. While these systems are easy to implement and design, they are inadequate to represent multidimensional signals since they cannot capture the geometric structure. Therefore, “true” multi...

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