Results 81 to 90 of about 240,977 (170)

Efficient Quantum Transforms

, 1997
Quantum mechanics requires the operation of quantum computers to be unitary, and thus makes it important to have general techniques for developing fast quantum algorithms for computing unitary transforms.
Hoyer, Peter
core   +2 more sources

Quantum Image Filtering in the Frequency Domain

Advances in Electrical and Computer Engineering, 2013
In this paper we address the emerging field of Quantum Image Processing. We investigate the use of quantum computing systems to represent and manipulate images. In particular, we consider the basic task of image filtering.
MANTA, V. I., CARAIMAN, S.
doaj   +1 more source

Fractional Fourier transform of coherent optical systems application

Revista Técnica de la Facultad de Ingeniería, 2012
In 1980 Namias presented the Fourier transform of Fractional order as a generalization of the well known Fourier transform, establishing the mathematic character of this with its set of theorems and properties. Initially he used it to solve problems with
Carlos Jiménez Ruiz, Jaime Castillo Pérez, Susana Salinas de Romero   +2 more
doaj  

Robust Inverse Quantum Fourier Transform Inspired Algorithm for Unsupervised Image Segmentation

IEEE Access
Image segmentation is a crucial task in computer vision. In this study, we propose a method based on inverse quantum Fourier transform (IQFT) and develop a robust IQFT-inspired algorithm for unsupervised image segmentation.
Taoreed A. Akinola, Xiangfang Li, Richard Wilkins, Pamela H. Obiomon, Lijun Qian   +4 more
doaj   +1 more source

A Generalised Transform Methodology Using Quantum Computation and Its Application for Electrocardiogram (ECG) Classification

IET Quantum Communication
Transforms play a pivotal role in the study of signals and images. With the advent of quantum systems, analysing signals in the quantum domain is of particular interest. In this work, we aim to build a generalised transform circuit in the quantum domain.
Bidisha Dhara, Monika Agrawal, Sumantra Dutta Roy   +2 more
doaj   +1 more source

Fourier Transform Multiple Quantum NMR [PDF]

, 1979
In Fourier Transform Multiple Quantum NMR [1] multiple quantum transitions in a coupled spin system are excited and detected in such a way that a specific n-quantum spectrum can be obtained for each n where n = 0, 1, ..., N (N = number of coupled spin-1/2 nuclei).
openaire   +1 more source

Tamper Localisation Using Quantum Fourier Transform Signatures for Medical Image Authentication

IET Quantum Communication
Medical image integrity is critical as telemedicine, cloud PACS and AI‐assisted diagnostics become routine. We present a tamper localisation framework that embeds authentication signatures in the phase domain of blockwise quantum Fourier transform (QFT ...
Kumar Sekhar Roy, Shweta Singh, Ruhul Amin Hazarika, Sk Mahmudul Hassan, Himanshu Ranjan Das   +4 more
doaj   +1 more source

Generalization of Quantum Fourier Transformation

, 2017
15 ...
openaire   +2 more sources

A quantum Fourier transform algorithm

, 2004
18 pages. Minor corrections were made, and some new material was added. Particularly, simulation results were added to show output of the algorithm, and to suggest possible ...
openaire   +2 more sources

Quantum Inverse Fast Fourier Transform

3 pages, 4 figures, works for vectors with manual calculations, need to build a model with Qiskit and update it if ...
Roy, Mayank, Maheswaran, Devi
openaire   +2 more sources