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Estimation of Leaf Nitrogen Content in Wheat Based on Fusion of Spectral Features and Deep Features from Near Infrared Hyperspectral Imagery [PDF]

open access: yesSensors, 2021
Nitrogen is an important indicator for monitoring wheat growth. The rapid development and wide application of non-destructive detection provide many approaches for estimating leaf nitrogen content (LNC) in wheat.
Baohua Yang   +4 more
doaj   +4 more sources

Class-level spectral features for emotion recognition

open access: yesSpeech Communication, 2010
The most common approaches to automatic emotion recognition rely on utterance level prosodic features. Recent studies have shown that utterance level statistics of segmental spectral features also contain rich information about expressivity and emotion.
Ragini Verma, Ani Nenkova
exaly   +6 more sources

Vibroarthrographic Signal Spectral Features in 5-Class Knee Joint Classification [PDF]

open access: yesSensors, 2020
Vibroarthrography (VAG) is a non-invasive and potentially widely available method supporting the joint diagnosis process. This research was conducted using VAG signals classified to five different condition classes: three stages of chondromalacia ...
Adam Łysiak   +3 more
doaj   +2 more sources

Classification of Diabetic Retinopathy Disease Levels by Extracting Spectral Features Using Wavelet CNN [PDF]

open access: yesDiagnostics
Diabetic retinopathy (DR) arises from blood vessel damage and is a leading cause of blindness on a global scale. Clinical professionals rely on examining fundus images to diagnose the disease, but this process is frequently prone to errors and is tedious.
Sumod Sundar   +2 more
doaj   +2 more sources

Recognition of spider mite infestations in jujube trees based on spectral-spatial clustering of hyperspectral images from UAVs

open access: yesFrontiers in Plant Science, 2023
Spider mite infestations are a serious hazard for jujube trees in China. The use of remote sensing technology to evaluate the health of jujube trees in large-scale intensive agricultural production is an effective means of agricultural control ...
Yue Wu   +6 more
doaj   +1 more source

Microwave Emissivity of Typical Vegetated Land Types Based on AMSR2

open access: yesRemote Sensing, 2022
To investigate the microwave radiation characteristics of different vegetation types, the “pure pixels” of 12 typical vegetated land types were selected and corresponding emissivity was retrieved under clear sky based on L1C AMSR2 observed brightness ...
Xueying Wang, Zhenzhan Wang
doaj   +1 more source

Use of Machine Learning for Deception Detection From Spectral and Cepstral Features of Speech Signals

open access: yesIEEE Access, 2021
In this research, four unique nonlinear speech features are extracted and analyzed to study the dissimilarity pattern between when the speaker is being deceitful and truthful based on how human speech is perceived.
Sinead V. Fernandes, Muhammad S. Ullah
doaj   +1 more source

Simulating Heat Stress of Coal Gangue Spontaneous Combustion on Vegetation Using Alfalfa Leaf Water Content Spectral Features as Indicators

open access: yesRemote Sensing, 2021
Vegetation heat-stress assessment in the reclamation areas of coal gangue dumps is of great significance in controlling spontaneous combustion; through a temperature gradient experiment, we collected leaf spectra and water content data on alfalfa.
Qiyuan Wang   +5 more
doaj   +1 more source

A Spectral Condition for Feature Learning

open access: yesCoRR, 2023
The push to train ever larger neural networks has motivated the study of initialization and training at large network width. A key challenge is to scale training so that a network's internal representations evolve nontrivially at all widths, a process known as feature learning.
Greg Yang   +2 more
openaire   +2 more sources

Spectral Representation Learning and Fusion for Autonomous Vehicles Trip Description Exploiting Recurrent Transformer

open access: yesIEEE Access, 2023
A thorough analysis and comprehension of the entire cue set in visual data are indispensable for an ideal video description model. As outlined in recent algorithm proposals, video descriptions have primarily been generated by learning RGB and optical ...
Ghazala Rafiq   +2 more
doaj   +1 more source

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