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https://www.readbyqxmd.com/read/28226629/emotion-classification-using-single-channel-scalp-eeg-recording
#1
Amir Jalilifard, Ednaldo Brigante Pizzolato, Md Kafiul Islam, Amir Jalilifard, Ednaldo Brigante Pizzolato, Md Kafiul Islam, Ednaldo Brigante Pizzolato, Amir Jalilifard, Md Kafiul Islam
Several studies have found evidence for corticolimbic Theta electroencephalographic (EEG) oscillation in the neural processing of visual stimuli perceived as fear or threatening scene. Recent studies showed that neural oscillations' patterns in Theta, Alpha, Beta and Gamma sub-bands play a main role in brain's emotional processing. The main goal of this study is to classify two different emotional states by means of EEG data recorded through a single-electrode EEG headset. Nineteen young subjects participated in an EEG experiment while watching a video clip that evoked three emotional states: neutral, relaxation and scary...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28221995/deep-cascade-cascading-3d-deep-neural-networks-for-fast-anomaly-detection-and-localization-in-crowded-scenes
#2
Mohammad Sabokrou, Mohsen Fayyaz, Mahmood Fathy, Reinhard Klette
This paper proposes a fast and reliable method for anomaly detection and localization in video data showing crowded scenes. Time-efficient anomaly localization is an ongoing challenge and subject of this paper. We propose a cubicpatch- based method, characterised by a cascade of classifiers, which makes use of an advanced feature-learning approach. Our cascade of classifiers has two main stages. First, a light but deep 3D auto-encoder is used for early identification of "many" normal cubic patches. This deep network operates on small cubic patches as being the first stage, before carefully resizing remaining candidates of interest, and evaluating those at the second stage using a more complex and deeper 3D convolutional neural network (CNN)...
February 17, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28220910/chemical-incidents-resulted-in-hazardous-substances-releases-in-the-context-of-human-health-hazards
#3
Anna Pałaszewska-Tkacz, Sławomir Czerczak, Katarzyna Konieczko
OBJECTIVES: The research purpose was to analyze data concerning chemical incidents in Poland collected in 1999-2009 in terms of health hazards. MATERIAL AND METHODS: The data was obtained, using multimodal information technology (IT) system, from chemical incidents reports prepared by rescuers at the scene. The final analysis covered sudden events associated with uncontrolled release of hazardous chemical substances or mixtures, which may potentially lead to human exposure...
February 21, 2017: International Journal of Occupational Medicine and Environmental Health
https://www.readbyqxmd.com/read/28215821/holistic-versus-feature-based-binding-in-the-medial-temporal-lobe
#4
Rebecca N van den Honert, Gregory McCarthy, Marcia K Johnson
A central question for cognitive neuroscience is how feature-combinations that give rise to episodic/source memories are encoded in the brain. Although there is much evidence that the hippocampus (HIP) is involved in feature binding, and some evidence that other brain regions are as well, there is relatively little evidence about the nature of the resulting representations in different brain regions. We used multivoxel pattern analysis (MVPA) to investigate how feature combinations might be represented, contrasting two possibilities, feature-based versus holistic...
January 23, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28213572/impact-of-expanding-the-prehospital-stroke-bypass-time-window-in-a-large-geographic-region
#5
Ian G Stiell, Catherine M Clement, Kristy Campbell, Mukul Sharma, Doug Socha, Marco L A Sivilotti, Albert Jin, Jeffrey J Perry, Jim Lumsden, Cally Martin, Mark Froats, Richard Dionne, John Trickett
BACKGROUND AND PURPOSE: The Ontario Acute Stroke Medical Redirect Paramedic Protocol (ASMRPP) was revised to allow paramedics to bypass to designated stroke centers if total transport time would be <2 hours and total time from symptom onset <3.5 hours. We sought to evaluate the impact and safety of implementing the Revised ASMRPP. METHODS: We conducted a 12-month implementation study involving prehospital patients presenting with possible stroke symptoms. A total of 1317 basic and advanced life support paramedics, of 9 land services in 10 rural counties and 5 cities, used the Revised ASMRPP to take appropriate patients directly to 6 designated stroke centers...
February 17, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28184211/disrupted-saccade-control-in-chronic-cerebral-injury-upper-motor-neuron-like-disinhibition-in-the-ocular-motor-system
#6
John-Ross Rizzo, Todd E Hudson, Andrew Abdou, Yvonne W Lui, Janet C Rucker, Preeti Raghavan, Michael S Landy
Saccades rapidly direct the line of sight to targets of interest to make use of the high acuity foveal region of the retina. These fast eye movements are instrumental for scanning visual scenes, foveating targets, and, ultimately, serve to guide manual motor control, including eye-hand coordination. Cerebral injury has long been known to impair ocular motor control. Recently, it has been suggested that alterations in control may be useful as a marker for recovery. We measured eye movement control in a saccade task in subjects with chronic middle cerebral artery stroke with both cortical and substantial basal ganglia involvement and in healthy controls...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28113809/text-attentional-convolutional-neural-networks-for-scene-text-detection
#7
Tong He, Weilin Huang, Yu Qiao, Jian Yao
Recent deep learning models have demonstrated strong capabilities for classifying text and non-text components in natural images. They extract a high-level feature computed globally from a whole image component (patch), where the cluttered background information may dominate true text features in the deep representation. This leads to less discriminative power and poorer robustness. In this work, we present a new system for scene text detection by proposing a novel Text-Attentional Convolutional Neural Network (Text-CNN) that particularly focuses on extracting text-related regions and features from the image components...
March 28, 2016: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28113588/shape-detection-from-raw-lidar-data-with-subspace-modeling
#8
Jun Wang, Kevin Kai Xu
LiDAR scanning has become a prevalent technique for digitalizing large-scale outdoor scenes. However, the raw LiDAR data often contain imperfections, e.g., missing large regions, anisotropy of sampling density, and contamination of noise and outliers, which are the major obstacles that hinder its more ambitious and higher level applications in digital city modeling. Observing that 3D urban scenes can be locally described with several low dimensional subspaces, we propose to locally classify the neighborhoods of the scans to model the substructures of the scenes...
August 31, 2016: IEEE Transactions on Visualization and Computer Graphics
https://www.readbyqxmd.com/read/28113342/scene-text-detection-and-segmentation-based-on-cascaded-convolution-neural-networks
#9
Youbao Tang, Xiangqian Wu
Scene text detection and segmentation are two important and challenging research problems in the field of computer vision. This paper proposes a novel method for scene text detection and segmentation based on cascaded convolution neural networks (CNNs). In this method, a CNN based text-aware candidate text region (CTR) extraction model (named detection network, DNet) is designed and trained using both the edges and the whole regions of text, with which coarse CTRs are detected. A CNN based CTR refinement model (named segmentation network, SNet) is then constructed to precisely segment the coarse CTRs into text to get the refined CTRs...
January 20, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/27973409/robust-grape-cluster-detection-in-a-vineyard-by-combining-the-adaboost-framework-and-multiple-color-components
#10
Lufeng Luo, Yunchao Tang, Xiangjun Zou, Chenglin Wang, Po Zhang, Wenxian Feng
The automatic fruit detection and precision picking in unstructured environments was always a difficult and frontline problem in the harvesting robots field. To realize the accurate identification of grape clusters in a vineyard, an approach for the automatic detection of ripe grape by combining the AdaBoost framework and multiple color components was developed by using a simple vision sensor. This approach mainly included three steps: (1) the dataset of classifier training samples was obtained by capturing the images from grape planting scenes using a color digital camera, extracting the effective color components for grape clusters, and then constructing the corresponding linear classification models using the threshold method; (2) based on these linear models and the dataset, a strong classifier was constructed by using the AdaBoost framework; and (3) all the pixels of the captured images were classified by the strong classifier, the noise was eliminated by the region threshold method and morphological filtering, and the grape clusters were finally marked using the enclosing rectangle method...
December 10, 2016: Sensors
https://www.readbyqxmd.com/read/27936564/application-of-the-metal-organic-framework-eu-btc-as-a-luminescent-marker-for-gunshot-residues-a-synthesis-characterization-and-toxicity-study
#11
Marcella A M Lucena, Marina F L Oliveira, Aline M Arouca, Márcio Talhavini, Eduardo A Ferreira, Severino Alves, Fabiane H Veiga-Souza, Ingrid T Weber
The 3D metal-organic framework (MOF) [Eu(BTC)] (where BTC = trimesic acid) was synthesized in 20 min by a microwave-assisted hydrothermal method with a yield of 89%. A structural and spectroscopic study, performed by X-ray diffraction, thermogravimetry, and photoluminescence spectroscopy, showed that this framework has high crystallinity, thermal stability, and luminescence. This MOF had a red-orange luminescence when excited with ultraviolet (UV) radiation (λ = 254 nm) and a high potential for use as a luminescent marker for gunshot residues (GSR)...
January 25, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/27921304/hyperthermia-thermal-injuries-and-death-from-a-forced-convection-heat-source-a-case-report-and-experimental-model
#12
Amanda O Fisher-Hubbard, LokMan Sung, Sean A Hubbard, Leigh Hlavaty
Heat-related deaths of children are most often encountered in the context of enclosed vehicles in summer months. Deviating from this, a 16-month-old boy was found unresponsive in a stroller that was placed adjacent to a space heater during mid-winter. The cause of death was hyperthermia and thermal injuries. Manner of death determination was difficult due to alleged surrounding circumstances. To understand the time-course of this child's injuries, a child death scene investigation was performed; the stroller and space heater were recovered...
December 6, 2016: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/27912778/medical-priority-dispatch-codes-comparison-with-national-early-warning-score
#13
Marko Hoikka, Sami Länkimäki, Tom Silfvast, Tero I Ala-Kokko
BACKGROUND: In Finland, calls for emergency medical services are prioritized by educated non-medical personnel into four categories-from A (highest risk) to D (lowest risk)-following a criteria-based national dispatch protocol. Discrepancies in triage may result in risk overestimation, leading to inappropriate use of emergency medical services units and to risk underestimation that can negatively impact patient outcome. To evaluate dispatch protocol accuracy, we assessed association between priority assigned at dispatch and the patient's condition assessed by emergency medical services on the scene using an early warning risk assessment tool...
December 3, 2016: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
https://www.readbyqxmd.com/read/27893394/a-robust-and-efficient-approach-to-license-plate-detection
#14
Yule Yuan, Wenbin Zou, Yong Zhao, Xinan Wang, Xuefeng Hu, Nikos Komodakis
This paper presents a robust and efficient method for license plate detection with the purpose of accurately localizing vehicle license plates from complex scenes in real time. A simple yet effective image downscaling method is first proposed to substantially accelerate license plate localization without sacrificing detection performance compared with that achieved using the original image. Furthermore, a novel line density filter approach is proposed to extract candidate regions, thereby significantly reducing the area to be analyzed for license plate localization...
March 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/27867227/a-pattern-based-definition-of-urban-context-using-remote-sensing-and-gis
#15
Magdalena Benza, John R Weeks, Douglas A Stow, David López-Carr, Keith C Clarke
In Sub-Saharan Africa rapid urban growth combined with rising poverty is creating diverse urban environments, the nature of which are not adequately captured by a simple urban-rural dichotomy. This paper proposes an alternative classification scheme for urban mapping based on a gradient approach for the southern portion of the West African country of Ghana. Landsat Enhanced Thematic Mapper Plus (ETM+) and European Remote Sensing Satellite-2 (ERS-2) synthetic aperture radar (SAR) imagery are used to generate a pattern based definition of the urban context...
September 15, 2016: Remote Sensing of Environment
https://www.readbyqxmd.com/read/27859515/characterizing-human-expertise-using-computational-metrics-of-feature-diagnosticity-in-a-pattern-matching-task
#16
Thomas Busey, Dimitar Nikolov, Chen Yu, Brandi Emerick, John Vanderkolk
Forensic evidence often involves an evaluation of whether two impressions were made by the same source, such as whether a fingerprint from a crime scene has detail in agreement with an impression taken from a suspect. Human experts currently outperform computer-based comparison systems, but the strength of the evidence exemplified by the observed detail in agreement must be evaluated against the possibility that some other individual may have created the crime scene impression. Therefore, the strongest evidence comes from features in agreement that are also not shared with other impressions from other individuals...
November 10, 2016: Cognitive Science
https://www.readbyqxmd.com/read/27858499/canadian-regulatory-perspectives-on-genome-engineered-crops
#17
Stuart J Smyth
New breeding techniques in plant agriculture exploded upon the scene about two years ago, in 2014. While these innovative plant breeding techniques, soon to be led by CRISPR/Cas9, initially appear to hold tremendous promise for plant breeding, if not a revolution for the industry, the question of how the products of these technologies will be regulated is rapidly becoming a key aspect of the technology's future potential. Regulation of innovative technologies and products has always lagged that of the science, but in the past decade, regulatory systems in many jurisdictions have become gridlocked as they try to regulate genetically modified (GM) crops...
November 18, 2016: GM Crops & Food
https://www.readbyqxmd.com/read/27828967/quantification-and-analysis-of-icebergs-in-a-tidewater-glacier-fjord-using-an-object-based-approach
#18
Robert W McNabb, Jamie N Womble, Anupma Prakash, Rudiger Gens, Christian E Haselwimmer
Tidewater glaciers are glaciers that terminate in, and calve icebergs into, the ocean. In addition to the influence that tidewater glaciers have on physical and chemical oceanography, floating icebergs serve as habitat for marine animals such as harbor seals (Phoca vitulina richardii). The availability and spatial distribution of glacier ice in the fjords is likely a key environmental variable that influences the abundance and distribution of selected marine mammals; however, the amount of ice and the fine-scale characteristics of ice in fjords have not been systematically quantified...
2016: PloS One
https://www.readbyqxmd.com/read/27814930/a-group-of-very-preterm-children-characterized-by-atypical-gaze-patterns
#19
Mariko Sekigawa-Hosozawa, Kyoko Tanaka, Toshiaki Shimizu, Tamami Nakano, Shigeru Kitazawa
OBJECTIVE: Very preterm (VP) children are at risk for social difficulties, including autism spectrum disorder (ASD). This study used eye tracking to determine viewing behaviors that may reflect these difficulties. DESIGN: The gaze patterns of 47 VP (mean gestational age: 28weeks, mean birth weight: 948g, and mean chronological age: 49months) were assessed while viewing dynamic social scenes and compared with those of 25 typically developing (TD) and 25 children with ASD...
November 1, 2016: Brain & Development
https://www.readbyqxmd.com/read/27783126/identification-of-individual-red-blood-cells-by-raman-microspectroscopy-for-forensic-purposes-in-search-of-a-limit-of-detection
#20
Claire K Muro, Igor K Lednev
Traces of body fluids can be present at a variety of crime scenes. It is important that forensic investigators have a reliable and nondestructive method of identifying these traces. Of equal importance is establishing the limitations of any method in use, including its detection limit. We have previously reported on the use of Raman microspectroscopy and multivariate data analysis to identify and differentiate body fluids. While many studies use serial dilutions to establish limits of detection, we utilized a different approach and demonstrated that a single red blood cell is sufficient to be correctly identified as blood...
January 2017: Analytical and Bioanalytical Chemistry
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