Results 81 to 90 of about 1,177,560 (190)

Reconstruction of LDPC code sparse check matrix based on modified LBP decoding

open access: yesTongxin xuebao
In order to reconstruct the sparse check matrix of LDPC code, a sparse check matrix reconstruction algorithm for LDPC code at high BER was proposed based on modified LBP decoding.
ZHANG Tianqi   +3 more
doaj   +2 more sources

Pruning-Based Sparse Recovery for Electrocardiogram Reconstruction from Compressed Measurements

open access: yesSensors, 2017
Due to the necessity of the low-power implementation of newly-developed electrocardiogram (ECG) sensors, exact ECG data reconstruction from the compressed measurements has received much attention in recent years.
Jaeseok Lee, Kyungsoo Kim, Ji-Woong Choi
doaj   +1 more source

Sparse Three-dimensional Imaging Based on Hough Transform for Forward-looking Array SAR in Low SNR

open access: yesLeida xuebao, 2017
The performance of sparse reconstruction algorithm of compressive sensing in low Signal-to-Noise Ratio (SNR) is lower, and the quality of sparse three-dimensional imaging for forward-looking array synthetic aperture radar in low SNR is reduced greatly ...
Liu Xiangyang   +4 more
doaj   +1 more source

Tensor-Based Sparse Representation for Hyperspectral Image Reconstruction Using RGB Inputs

open access: yesMathematics
Hyperspectral image (HSI) reconstruction from RGB input has drawn much attention recently and plays a crucial role in further vision tasks. However, current sparse coding algorithms often take each single pixel as the basic processing unit during the ...
Yingtao Duan   +3 more
doaj   +1 more source

Underwater 3D sound speed field reconstruction based on block term tensor decomposition

open access: yesFrontiers in Physics
The three-dimensional sound speed field (SSF) is of great significance in underwater acoustic research; however, the high cost of maritime observation often leads to sparse and limited measurement data, making accurate SSF reconstruction a challenging ...
Hao Wu, Maofa Wang, Jiabao Zhao
doaj   +1 more source

Sparse and shift-invariant representations of music

open access: yes, 2006
Redundancy reduction has been proposed as the main computational process in the primary sensory pathways in the mammalian brain. This idea has led to the development of sparse coding techniques, which are exploited in this article to extract salient ...
Mike Davies   +3 more
core   +1 more source

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