loading
2-D FFT for Periodic Noise Removal on Strain Image & &
2010 Edition, June 1, 2010 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Abstract-Elastography is a non-invasive method in which stiffness of soft tissue is displayed as strain images to assist in detecting or classifying tumors. External tissue compression causes axial displacements which are subsequently computed and converted to strain. However,...

Image Processing With Dipole-Coupled Nanomagnets: Noise Suppression and Edge Enhancement Detection
2017 Edition, Volume 64, May 1, 2017 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Hardware-based image processing offers speed and convenience not found in software-centric approaches. Here, we show theoretically that a 2-D periodic array of dipole-coupled elliptical nanomagnets, delineated on a piezoelectric substrate, can act as a dynamical...

The Serial Commutator FFT
2016 Edition, Volume 63, October 1, 2016 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

This brief presents a new type of fast Fourier transform (FFT) hardware architectures called serial commutator (SC) FFT. The SC FFT is characterized by the use of circuits for bit-dimension permutation of serial data. The proposed architectures are based on the...

FFT pruning
1971 Edition, Volume 19, December 1, 1971 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

There are basically four modifications of the N=2Mpoint FFT algorithm developed by Cooley and Tukey which give improved computational efficiency. One of these, FFT pruning, is quite useful for applications such as interpolation (in both the time and frequency domain), and...

Japanese Autotuning Research: Autotuning Languages and FFT
Volume PP - IEEE - Institute of Electrical and Electronics Engineers, Inc.

This paper introduces current research on automatic performance tuning, specifically in the Japanese community, from two aspects. First, we discuss autotuning (AT) research from the viewpoint of AT frameworks, including AT methodology, computer languages, and performance models. In addition,...

A Variable-Size FFT Hardware Accelerator Based on Matrix Transposition
Volume PP - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Fast Fourier transform (FFT) is the kernel and the most time-consuming algorithm in the domain of digital signal processing, and the FFT sizes of different applications are very different. Therefore, this paper proposes a variable-size FFT hardware accelerator, which fully...

FFT Selective and Adaptive Filtering for Removal of Systematic Noise in ETM+ Imageodesy Images
2006 Edition, Volume 44, December 1, 2006 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

The images of imageodesy derived from Landsat-7 Enhanced Thematic Mapper Plus (ETM+) image pairs across an earthquake event exhibit severe horizontal and vertical striping noise patterns that obscure the desired information relating to earthquake-induced terrain displacements....

Feedforward FFT Hardware Architectures Based on Rotator Allocation
Volume PP - IEEE - Institute of Electrical and Electronics Engineers, Inc.

In this paper, we present new feedforward FFT hardware architectures based on rotator allocation. The rotator allocation approach consists in distributing the rotations of the FFT in such a way that the number of edges in the FFT that need rotators and the complexity of...

Accelerating Convolutional Neural Network With FFT on Embedded Hardware
Volume PP - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Fueled by ImageNet Large Scale Visual Recognition Challenge and Common Objects in Context competitions, the convolutional neural network (CNN) has become important in computer vision and natural language processing. However, state-of-the-art CNNs are computationally memory-intensive, thus...

3D FFT for FPGAs
2013 Edition, September 1, 2013 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

The 3D FFT is critical in electrostatics computations such as those used in Molecular Dynamics simulations. On FPGAs, however, the 3D FFT was thought to be inefficient relative to other methods such as convolution-based implementations of multigrid. We find the opposite: a...

Advertisement