Early Recognition of Suspicious Activity for Crime Prevention

2018 ◽  
pp. 2139-2165
Author(s):  
M. Kalaiselvi Geetha ◽  
J. Arunnehru ◽  
A. Geetha
Keyword(s):  
Crime Prevention ◽  
Early Recognition ◽  
Early Stage ◽  
Criminal Activity ◽  
Automatic Identification ◽  
Early Prediction ◽  
Interest Point ◽  
Prediction Problem ◽  
Novel Approach ◽  
2D And 3D

Automatic identification and early prediction of suspicious human activities are of significant importance in video surveillance research. By recognizing and predicting a criminal activity at an early stage, regrettable incidents can be avoided. Initially, an action recognition framework is developed for identifying the suspicious actions using interest point based 2D and 3D features and transform based approaches. This is subsequently followed by a novel approach for predicting the suspicious actions for crime prevention in real-world scenario. The prediction problem is formulated probabilistically and a novel approach that employs the mixture models for prediction is introduced. The developed system yields promising results for predicting the actions in real-time.

Early Recognition of Suspicious Activity for Crime Prevention

2016 ◽  
pp. 205-231 ◽  
Author(s):  
M. Kalaiselvi Geetha ◽  
J. Arunnehru ◽  
A. Geetha
Keyword(s):  
Crime Prevention ◽  
Early Recognition ◽  
Early Stage ◽  
Criminal Activity ◽  
Automatic Identification ◽  
Early Prediction ◽  
Interest Point ◽  
Prediction Problem ◽  
Novel Approach ◽  
2D And 3D

Automatic identification and early prediction of suspicious human activities are of significant importance in video surveillance research. By recognizing and predicting a criminal activity at an early stage, regrettable incidents can be avoided. Initially, an action recognition framework is developed for identifying the suspicious actions using interest point based 2D and 3D features and transform based approaches. This is subsequently followed by a novel approach for predicting the suspicious actions for crime prevention in real-world scenario. The prediction problem is formulated probabilistically and a novel approach that employs the mixture models for prediction is introduced. The developed system yields promising results for predicting the actions in real-time.

scholarly journals A New Prototype for Automatic Identification of Stone Block Internal Structure

2021 ◽  
Vol 11 (14) ◽  
pp. 6630
Author(s):  
Bernardo Anes ◽  
Joao Figueiredo ◽  
Mouhaydine Tlemçani
Keyword(s):  
Internal Structure ◽  
Empirical Method ◽  
Automatic Process ◽  
Automatic Identification ◽  
Ultrasonic Tomography ◽  
Stone Block ◽  
Novel Approach ◽  
Process Measurements ◽  
Automatic Positioning ◽  
Non Destructive

Nowadays, the inner shape and economic viability of a stone block is dependent on the skill and experience of the “expert” that makes predictions based on external observations. This actual procedure is an extremely high empirical method, and when it fails, substantial work, time, and money is wasted. At present, researchers are committed to developing models to predict the stone block internal structure based on non-destructive tests. Ultrasonic tomography and electrical resistivity tomography are the tests that best fit these objectives. Trying to improve the existing procedures for collecting stone information and data exporting, a novel approach to perform both tomographies is proposed in this paper. This novel approach presents sound advantages regarding the current manual procedure: namely, (i) high accuracy due to a new automatic positioning system; (ii) no need for highly skilled operators to process measurements; (iii) measurements are much easier to derive, and results are quickly delivered. A comparison between the new automatic process and the current manual procedure shows that the manual procedure has a very low accuracy when compared to the new developed automatic system. The automatic measurements show extremely significant time savings, which is a relevant issue for the future competitiveness of the stone sector.

scholarly journals Epidemiological features and medical care-seeking process of patients with COVID-19 in Wuhan, China

2020 ◽  
Vol 6 (2) ◽  
pp. 00142-2020 ◽  
Author(s):  
Jing Hua ◽  
Rongzhang Chen ◽  
Liming Zhao ◽  
Xiaodong Wu ◽  
Qian Guo ◽  
...  
Keyword(s):  
Medical Care ◽  
Early Recognition ◽  
Early Stage ◽  
Evaluation Process ◽  
Clinical Information ◽  
Healthcare Setting ◽  
Care Seeking ◽  
Medical Visit ◽  
Illness Onset ◽  
Clinical Recovery

BackgroundWe aimed to investigate the epidemiological and clinical features, and medical care-seeking process of patients with the 2019 coronavirus disease (COVID-19) in Wuhan, China, to provide useful information to contain COVID-19 in other places with similar outbreaks of the virus.MethodsWe collected epidemiological and clinical information of patients with COVID-19 admitted to a makeshift Fangcang hospital between 7 and 26 February, 2020. The waiting time of each step during the medical care-seeking process was also analysed.ResultsOf the 205 patients with COVID-19 infection, 31% had presumed transmission from a family member. 10% of patients had hospital-related transmission. It took as long as a median of 6 days from the first medical visit to receive the COVID-19 nucleic acid test and 10 days from the first medical visit to hospital admission, indicating early recognition of COVID-19 was not achieved at the early stage of the outbreak, although these delays were shortened later. After clinical recovery from COVID-19, which took a mean of 21 days from illness onset, there was still a substantial proportion of patients who had persistent SARS-CoV-2 infection.ConclusionsThe diagnostic evaluation process of suspected patients needs to be accelerated at the epicentre of the outbreak and early isolation of infected patients in a healthcare setting rather than at home is urgently required to stop the spread of the virus. Clinical recovery is not an appropriate criterion to release isolated patients and as long as 4 weeks' isolation for patients with COVID-19 is not enough to prevent the spread of the virus.

scholarly journals Rational Programming of Cas12a for Early-Stage Detection of COVID-19 by Lateral Flow Assay and Portable Real-Time Fluorescence Readout Facilities

Biosensors ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 11
Author(s):  
Zhijian Yi ◽  
Jean de Dieu Habimana ◽  
Omar Mukama ◽  
Zhiyuan Li ◽  
Nelson Odiwuor ◽  
...  
Keyword(s):  
Real Time ◽  
Early Stage ◽  
Limited Resource ◽  
Lateral Flow ◽  
Lateral Flow Assay ◽  
Capture Probe ◽  
Fluorescence Detector ◽  
Lateral Flow Strip ◽  
Global Pandemic ◽  
Novel Approach

Coronavirus disease 2019 (COVID-19) caused by the SARS-CoV-2 virus has led to a global pandemic with a high spread rate and pathogenicity. Thus, with limited testing solutions, it is imperative to develop early-stage diagnostics for rapid and accurate detection of SARS-CoV-2 to contain the rapid transmission of the ongoing COVID-19 pandemic. In this regard, there remains little knowledge about the integration of the CRISPR collateral cleavage mechanism in the lateral flow assay and fluorophotometer. In the current study, we demonstrate a CRISPR/Cas12a-based collateral cleavage method for COVID-19 diagnosis using the Cas12a/crRNA complex for target recognition, reverse transcription loop-mediated isothermal amplification (RT-LAMP) for sensitivity enhancement, and a novel DNA capture probe-based lateral flow strip (LFS) or real-time fluorescence detector as the parallel system readout facility, termed CRICOLAP. Our novel approach uses a customized reporter that hybridizes an optimized complementary capture probe fixed at the test line for naked-eye result readout. The CRICOLAP system achieved ultra-sensitivity of 1 copy/µL in ~32 min by portable real-time fluorescence detection and ~60 min by LFS. Furthermore, CRICOLAP validation using 60 clinical nasopharyngeal samples previously verified with a commercial RT-PCR kit showed 97.5% and 100% sensitivity for S and N genes, respectively, and 100% specificity for both genes of SARS-CoV-2. CRICOLAP advances the CRISPR/Cas12a collateral cleavage result readout in the lateral flow assay and fluorophotometer, and it can be an alternative method for the decentralized field-deployable diagnosis of COVID-19 in remote and limited-resource locations.

scholarly journals Glucocorticoid-Induced Avascular Bone Necrosis: Diagnosis and Management

2012 ◽  
Vol 6 (1) ◽  
pp. 449-457 ◽  
Author(s):  
KL Chan ◽  
CC Mok
Keyword(s):  
Early Recognition ◽  
Early Stage ◽  
Weight Bearing ◽  
Plain Radiograph ◽  
Core Decompression ◽  
Bone Necrosis ◽  
Avascular Bone Necrosis ◽  
Magnetic Resonance Imaging Mri ◽  
High Index Of Suspicion

Glucocorticoid use is one of the most important causes of avascular bone necrosis (AVN). The pathogenesis of glucocorticoid-induced AVN is not fully understood but postulated mechanisms include fat hypertrophy, fat emboli and intravascular coagulation that cause impedance of blood supply to the bones. Data regarding the relationship between AVN and dosage, route of administration and treatment duration of glucocorticoids are conflicting, with some studies demonstrating the cumulative dose of glucocorticoid being the most important determining factor. Early recognition of this complication is essential as the prognosis is affected by the stage of the disease. Currently, there is no consensus on whether universal screening of asymptomatic AVN should be performed for long-term glucocorticoid users. A high index of suspicion should be exhibited for bone and joint pain at typical sites. Magnetic resonance imaging (MRI) or bone scintigraphy is more sensitive than plain radiograph for diagnosing early-stage AVN. Conservative management of AVN includes rest and reduction of weight bearing. Minimization of glucocorticoid dose or a complete withdrawal of the drug should be considered if the underlying conditions allow. The efficacy of bisphosphonates in reducing the rate of collapse of femoral head in AVN is controversial. Surgical therapy of AVN includes core decompression, osteotomy, bone grafting and joint replacement. Recent advances in the treatment of AVN include the use of tantalum rod and the development of more wear resistant bearing surface in hip arthroplasty.

scholarly journals Object Metamorphosis Based on Generalized Morphology Transformation

2001 ◽  
Vol 5 (1) ◽  
pp. 92-103
Author(s):  
Hua Li ◽  
Wenyu Liu ◽  
Guangxi Zhu ◽  
Yaoting Zhu
Keyword(s):  
Computer Animation ◽  
Industrial Design ◽  
Simple Computation ◽  
Shape Transformation ◽  
High Quality ◽  
Growth Simulation ◽  
Novel Approach ◽  
Polyhedral Objects ◽  
2D And 3D

A metamorphosis or a morphing is the process of continuously transforming one object into another, and are popular in computer animation, industrial design, and growth simulation. In this paper, a novel approach is presented for computing continuous shape transformation between polyhedral objects in this paper. Metamorphosis can be achieved by decomposing two objects into sets of individual convex sub-objects respectively and constructing the mapping between two sets, this method can solve the metamorphosis problem of two non-homotopic objects (including concave objects and holey objects). The results of object metamorphosis are discussed in this paper. The experiments show that this method can generate natural, high quality metamorphosis results with simple computation. This method can also be used in font composition and interpolation between two keyframes in 2D and 3D computer animation automatically.

scholarly journals Plasma lactate levels and lactate clearance as predictors of outcome in patients with sepsis and septic shock

2020 ◽  
Vol 7 (6) ◽  
pp. 1213
Author(s):  
Rashmi Patil ◽  
Chikkanarasareddy P. S. ◽  
Mallesh K.
Keyword(s):  
Septic Shock ◽  
Clinical Decision Making ◽  
Early Recognition ◽  
Early Stage ◽  
Therapeutic Option ◽  
Lactate Clearance ◽  
Plasma Lactate ◽  
Risk Of Death ◽  
Lactate Levels ◽  
Sepsis And Septic Shock

Background: Severe sepsis and septic shock are the major causes of admission and deaths in the ICU, killing one in four (and often more) and increasing in incidence. In order to improve the clinical outcomes in these patients, it is crucial to obtain early recognition of patients who are at risk of death and to optimize the clinical decision making in a timely manner. In order to monitor the metabolic consequences of shock and hemodynamic management, plasma lactate levels can be used in critical illness. Objective of the study is to estimate plasma lactate and lactate clearance in sepsis and septic shock patients and to correlate plasma lactate and lactate clearance as predictors of mortality.Methods: This study is a prospective observational study conducted over 18months. Children with age of 1 month to 18 years admitted to the Paediatric intensive care unit with sepsis and septic shock were enrolled in the study. ABG at admission to document plasma lactate and lactate repeated at 6 and 24 hrs. Lactate clearance calculated at 6 and 24 hrs. The final outcome in terms of survival or death will be recorded.Results: Majority of the children fall in the class between 1-6 months 51(48.11%). Male comprises 69(65.09%). Among these, Sepsis 36(33.96%); followed by Pneumonia 34(32.07%). Survivors group were 35(33.02%) and non-survivor was 71(66.98%). The Non survivor group was observed to have lower mean values of lactate clearance and found to be statistically significant. Specificity of Lactate clearance was 63.52% and Sensitivity 76.02% respectively. The results were positively associated with lactate level at 24 hours found to be significant effect of survivability when compared to non-survivor.Conclusions: Lactate clearance is vital and markable sign for screening of septic shock at early stage for therapeutic option. Further, 24-hours lactate estimation (cut off values) clearance appears superior to 6 h lactate clearance in predicting mortality in such patients.

Tu1539 Evaluation of a Novel Approach to Early Stage Colorectal Neoplasms: Endoscopic Submucosal Dissection. a Japanese National Registry Study

2014 ◽  
Vol 79 (5) ◽  
pp. AB576-AB577 ◽  
Author(s):  
Yutaka Saito ◽  
Mitsuhiro Fujishiro ◽  
Shinji Tanaka ◽  
Hiroyasu Iishi ◽  
Tomohiko Miyata ◽  
...  
Keyword(s):  
Endoscopic Submucosal Dissection ◽  
Colorectal Neoplasms ◽  
Early Stage ◽  
National Registry ◽  
Registry Study ◽  
Submucosal Dissection ◽  
Novel Approach

Early Intervention and Crime Prevention Perspectives from the Frontline

2021 ◽  
Author(s):  
Lisa Margaret Deveau
Keyword(s):  
Early Intervention ◽  
Police Officer ◽  
Crime Prevention ◽  
Social Worker ◽  
Social Factors ◽  
Critical Review ◽  
Interdisciplinary Approach ◽  
Criminal Activity ◽  
Current Approach ◽  
Criminal Behaviors

In this critical review and social innovative narrative, the author details their perspective on early intervention and prevention in relation to terrorism, radicalization, and extremism. Drawing on over 10 years of frontline experience as a teacher, police officer, and registered social worker, the author discusses the interdisciplinary approach that is crucial in preventing and resolving criminal behaviors especially as it relates to terrorism, radicalization, and extremism. While the paper focuses on this global act of violence, the discussion does not only apply to terrorism and radicalization. There are a multitude of psycho-social factors that may cause one to become vulnerable, making them susceptible to being recruited and/or engaging in criminal activity especially for women who have historically and currently been disadvantaged. The following will discuss why the current approach in crime prevention and detection follows a more reactive model. Ultimately it will consider whether the current approach, that is largely driven by law enforcement and security who are at the forefront in resolving these issues, is the most effective approach in crime resolution.

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