Results 11 to 20 of about 223,172 (286)

A Double-Image Encryption Scheme Based on Amplitude-Phase Encoding and Discrete Complex Random Transformation

open access: yesIEEE Access, 2018
In this paper, a novel double image encryption scheme based on amplitude-phase encoding and discrete complex random transform (DCRT) is proposed. First, two images are merged into a plural matrix by precoding, and the synthetic signal is modulated by the
Yuling Luo   +5 more
doaj   +3 more sources

Multiclass classification using quantum convolutional neural networks with hybrid quantum-classical learning

open access: yesFrontiers in Physics, 2022
Multiclass classification is of great interest for various applications, for example, it is a common task in computer vision, where one needs to categorize an image into three or more classes.
Denis Bokhan   +7 more
doaj   +1 more source

Variational Quantum Classifier for Binary Classification: Real vs Synthetic Dataset

open access: yesIEEE Access, 2022
Nowadays, quantum-enhanced methods have been widely studied to solve machine learning related problems. This article presents the application of a Variational Quantum Classifier (VQC) for binary classification.
Danyal Maheshwari   +2 more
doaj   +1 more source

Encoding type, medication, and deep brain stimulation differentially affect memory-guided sequential reaching movements in Parkinson's disease

open access: yesFrontiers in Neurology, 2022
Memory-guided movements, vital to daily activities, are especially impaired in Parkinson's disease (PD). However, studies examining the effects of how information is encoded in memory and the effects of common treatments of PD, such as medication and ...
Fabian J. David   +10 more
doaj   +1 more source

A Repeater-Type SAR Deceptive Jamming Method Based on Joint Encoding of Amplitude and Phase in the Intra-Pulse and Inter-Pulse

open access: yesRemote Sensing, 2022
Due to advantages such as low power consumption and high concealment, deceptive jamming against synthetic aperture radar (SAR) has received extensive attention in electronic countermeasures.
Dongyang Cheng   +4 more
doaj   +1 more source

Delta-Ramp Encoder for Amplitude Sampling and Its Interpretation as Time Encoding [PDF]

open access: yesIEEE Transactions on Signal Processing, 2019
The theoretical basis for conventional acquisition of bandlimited signals typically relies on uniform time sampling and assumes infinite-precision amplitude values. In this paper, we explore signal representation and recovery based on uniform amplitude sampling with assumed infinite precision timing information.
Pablo MartĂ­nez-Nuevo   +2 more
openaire   +2 more sources

Simple complex amplitude encoding of a phase-only hologram using binarized amplitude [PDF]

open access: yesJournal of Optics, 2020
For this work, we introduced the use of binary amplitude for our proposed complex amplitude encoding of a phase-only hologram. By principle, a complex amplitude in a hologram plane can be represented by the amplitude and its phase. However, a phase-only hologram contains only phase information of the complex amplitude, which results in degradation of ...
Tomoyoshi Shimobaba   +6 more
openaire   +2 more sources

TensorFlow Quantum: Impacts of Quantum State Preparation on Quantum Machine Learning Performance

open access: yesIEEE Access, 2020
Learning methodologies on quantum devices have shown that there are advantages in utilizing quantum properties. A requirement for using quantum computing in machine learning techniques is the data representation as quantum states.
Daniel Sierra-Sosa   +2 more
doaj   +1 more source

Encoding force modulation in two electrotactile feedback parameters strengthens sensory integration according to maximum likelihood estimation

open access: yesScientific Reports, 2023
Bidirectional human–machine interfaces involve commands from the central nervous system to an external device and feedback characterizing device state. Such feedback may be elicited by electrical stimulation of somatosensory nerves, where a task-relevant
Shima Gholinezhad   +3 more
doaj   +1 more source

Concurrent Encoding of Frequency and Amplitude Modulation in Human Auditory Cortex: Encoding Transition [PDF]

open access: yesJournal of Neurophysiology, 2007
Complex natural sounds (e.g., animal vocalizations or speech) can be characterized by specific spectrotemporal patterns the components of which change in both frequency (FM) and amplitude (AM). The neural coding of AM and FM has been widely studied in humans and animals but typically with either pure AM or pure FM stimuli.
Huan, Luo   +3 more
openaire   +2 more sources

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