Results 171 to 180 of about 9,784,899 (249)

Frequency Domain

Macroeconomic Forecasting in the Era of Big Data, 2019
Time series analysis in frequency domain has always been an active area of research. Theorists often employ techniques in frequency domain to advance current understanding on complex time series properties and develop useful toolboxes for practical time series analysis.
Chan, Felix, Reale, M.
openaire   +3 more sources

Frequency-domain MLPs are More Effective Learners in Time Series Forecasting

Neural Information Processing Systems, 2023
Time series forecasting has played the key role in different industrial, including finance, traffic, energy, and healthcare domains. While existing literatures have designed many sophisticated architectures based on RNNs, GNNs, or Transformers, another ...
Kun Yi, Qi Zhang, Wei Fan, Shoujin Wang, Pengyang Wang, Hui He, Defu Lian, Ning An, Longbin Cao, Zhendong Niu   +9 more
semanticscholar   +1 more source

Detecting Camouflaged Object in Frequency Domain

Computer Vision and Pattern Recognition, 2022
Camouflaged object detection (COD) aims to identify objects that are perfectly embedded in their environment, which has various downstream applications in fields such as medicine, art, and agriculture. However, it is an extremely challenging task to spot
Yijie Zhong, Bo Li, Lv Tang, Senyun Kuang, Shuang Wu, Shouhong Ding   +5 more
semanticscholar   +1 more source

Crowd Counting in the Frequency Domain

Computer Vision and Pattern Recognition, 2022
This paper investigates crowd counting in the frequency domain, which is a novel direction compared to the traditional view in the spatial domain. By transforming the density map into the frequency domain and using the properties of the characteristic ...
Weibo Shu, Jia Wan, K. Tan, Sam Kwong, Antoni B. Chan   +4 more
semanticscholar   +1 more source

Frequency domain Nonlinear Optics

Nonlinear Optics, 2017
Frequency-domain Nonlinear Optics (FNO) merges the simplicity of linear optics with the power of nonlinear optics. Employing FNO, we demonstrate pulse shaping in the deep UV and amplification of two-cycle infrared pulses to 2.5 TW.
Schmidt B. E., Gruson V., Lassonde P., Ernotte G., Leblanc A., Clerici M., Morandotti R., DiMauro L., Corkum P. B., Ibrahim H., Legare   +10 more
openaire   +3 more sources

Frequency-domain Hadamard spectroscopy

Journal of Magnetic Resonance, 2003
A new technique is proposed for multichannel excitation and detection of NMR signals in the frequency domain, an alternative to the widely used pulse-excited Fourier transform method. An extensive array of N radiofrequency irradiation channels covers the spectrum of interest.
Eriks, Kupce, Ray, Freeman
openaire   +2 more sources

SFFNet: A Wavelet-Based Spatial and Frequency Domain Fusion Network for Remote Sensing Segmentation

IEEE Transactions on Geoscience and Remote Sensing
To fully utilize spatial information for segmentation and address the challenge of handling areas with significant grayscale variations in remote sensing segmentation, we propose the spatial and frequency domain fusion network (SFFNet) framework.
Yunsong Yang, Genji Yuan, Jinjiang Li
semanticscholar   +1 more source

Frequency-Domain Transient Imaging

IEEE Transactions on Pattern Analysis and Machine Intelligence, 2017
A transient image is the optical impulse response of a scene, which also visualizes the propagation of light during an ultra-short time interval. In contrast to the previous transient imaging which samples in the time domain using an ultra-fast imaging system, this paper proposes transient imaging in the frequency domain using a multi-frequency time-of-
, Jingyu Lin, , Yebin Liu, , Jinli Suo, , Qionghai Dai   +3 more
openaire   +2 more sources

Frequency domain chaotic watermarking

ISCAS 2001. The 2001 IEEE International Symposium on Circuits and Systems (Cat. No.01CH37196), 2002
A watermarking procedure to be applied in the frequency domain to digital images has been proposed and investigated, with purpose of copyright protection. The selected digital signature is a chaotic sequence embedded by considering a shaping function to weight in different manner each sequence value, as a function of the image properties in the ...
GIOVANARDI, Alessandra, MAZZINI, Gianluca   +1 more
openaire   +2 more sources

Chipless RFID Readers for Frequency-Coded Tags: Time-Domain or Frequency-Domain?

IEEE Journal of Radio Frequency Identification, 2020
Printable ultra-wideband (UWB) frequency-coded chipless radio frequency identification (RFID) tags are suitable candidates for barcode replacement toward developing smart objects.
Javad Aliasgari, M. Forouzandeh, N. Karmakar   +2 more
semanticscholar   +1 more source