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1.
Medicine (Baltimore) ; 100(1): e23960, 2021 Jan 08.
Artigo em Inglês | MEDLINE | ID: mdl-33429756

RESUMO

BACKGROUND: Rotator cuff injury is the most common cause of shoulder dysfunction. Despite the continuous advancement of surgical techniques, the incidence of re-tearing after rotator cuff repair is still high. The main reason is that it is difficult to reconstruct the normal tendon bone interface and the process is slow, and the application of tissue engineering technology can promote tendon and bone healing. This study will evaluate the effect of the bionic double membrane stent on the rotator cuff healing after arthroscopic rotator cuff repair. METHODS: This is a prospective randomized controlled trial to study the effect of biomimetic double-layer biofilm stent on rotator cuff healing. Approved by the clinical research ethics committee of our hospital. The patients were randomly divided into 1 of 2 treatment options: (A) a biomimetic double-layer biofilm stent group and (B) a non-bionic dual-layer biofilm stent group. Observation indicators include: visual analog scale score, University of California Los Angeles score, American Shoulder & Elbow Surgeons score and Constant-Murley score. Data were analyzed using the statistical software package SPSS version 16.0 (Chicago, IL). DISCUSSION: This study will evaluate and evaluate the effect of the bionic double-layer membrane stent on the rotator cuff healing after arthroscopic rotator cuff repair. The results of this experiment will provide new treatment ideas for promoting rotator cuff tendon bone healing. OSF REGISTRATION NUMBER: DOI 10.17605/OSF.IO/FWKD6.


Assuntos
Biofilmes , Identificação Biométrica/instrumentação , Protocolos Clínicos , Lesões do Manguito Rotador/cirurgia , Idoso , Identificação Biométrica/métodos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Ensaios Clínicos Controlados Aleatórios como Assunto , Resultado do Tratamento
2.
Rev. esp. med. legal ; 46(1): 4-11, ene.-mar. 2020. tab, graf
Artigo em Espanhol | IBECS | ID: ibc-193984

RESUMO

INTRODUCCIÓN: El presente trabajo tuvo como objetivo comparar los métodos de Willems et al. (WI y WII) en la estimación forense de la edad en niños venezolanos. MATERIAL Y MÉTODOS: Esta investigación fue de tipo retrospectiva y observacional. Se emplearon 516 ortopantomografías de individuos de ambos sexos (6-18 años), se asignaron los estadios de maduración dental descritos por Demirjian et al. en los 7 dientes inferiores izquierdos, para luego determinar la edad dental (ED) mediante WI y WII. Se calculó la diferencia de media entre la edad cronológica (EC) y la ED estimada mediante una prueba «t» de Student para muestras relacionadas. RESULTADOS: Para el total de la muestra se observó la subestimación de la edad por ambos métodos (0,17+/-1,75 años), siendo la diferencia EC-ED estadísticamente significativa (p = 0,04). Considerando todos los grupos de edad, WII mostró la menor diferencia EC-ED (0,05 años+/-1,40) en el sexo femenino, mientras que para el masculino se encontró menor diferencia para WI (0,04+/-0,54 años). En una submuestra hasta los 16 años se evidenció una subestimación de la edad en el sexo femenino para WI (0,03+/-1,23 años) y una sobreestimación para WII (-0,18+/-1,24 años), en el sexo masculino ambos métodos sobreestimaron la edad (W1=-0,21+/-1,17; WII=-0,06+/-1,20 años). CONCLUSIONES: La precisión de los métodos varió de acuerdo al sexo y grupo de edad, sin embargo, ambos resultaron aplicables a la muestra estudiada


INTRODUCTION: The purpose of this study was to compare the methods of Willems et al., (WI and WII) in estimating the forensic age in Venezuelan children. MATERIAL AND METHODS: A retrospective and observational study was performed on 516 orthopantomographs of individuals of both genders (6-18 years) in order to evaluate the stages of dental maturation described by Demirjian et al. Using the dental age (DA) in the seven left inferior teeth, DA was calculated using the WI and WII methods. The mean difference between the chronological age (CA) and DA was calculated using a paired-sample t-Test. RESULTS: The under-estimation of age by both methods (0.17+/-1.75 years) was observed, with the CA-DA difference being statistically significant (P=.04). Considering all age groups, WII showed the smallest difference between CA-DA (0.05+/-1.40 years) in girls, while a smaller difference was found for WI (0.04+/-0.54 years)for boys. In a subsample up to the age of 16, there was an under-estimation of age in females for WI (0.03+/-1.23 years) and an over-estimation for WII (-0.18+/-1.24 years). In the males both methods over-estimated the age (W1=-0.21+/-1.17 years, WII=-0.06+/-1.20 years). CONCLUSIONS: The accuracy of the methods varied according to gender and age group: however, both were applicable to the studied sample


Assuntos
Humanos , Masculino , Feminino , Criança , Adolescente , Determinação da Idade pelos Dentes/métodos , Radiografia Panorâmica/métodos , Odontologia Legal/instrumentação , Germe de Dente/diagnóstico por imagem , Estudos Retrospectivos , Venezuela , Reprodutibilidade dos Testes , Identificação Biométrica/instrumentação
3.
JAMA Netw Open ; 3(1): e1919247, 2020 01 03.
Artigo em Inglês | MEDLINE | ID: mdl-31940037

RESUMO

Importance: Limited quantitative data exist on the restoration of nonverbal communication via facial emotional expression after face transplant. Objective and noninvasive methods for measuring outcomes and tracking rehabilitation after face transplant are lacking. Objective: To measure emotional expression as an indicator of functional outcomes and rehabilitation after face transplant via objective, noninvasive, and nonobtrusive software-based video analysis. Design, Setting, and Participants: This single-center case-control study analyzed videos with commercially available video analysis software capable of detecting emotional expression. The study participants were 6 patients who underwent face transplant at Brigham and Women's Hospital between April 2009 and March 2014. They were matched by age, race/ethnicity, culture, and sex to 6 healthy controls with no prior facial surgical procedures. Participants were asked to perform either emotional expressions (direct evaluation) or standardized facial movements (indirect evaluation). Videos were obtained in a clinical setting, except for direct evaluation videos of 3 patients that were recorded at the patients' residences. Data analysis was performed from June 2018 to November 2018. Main Outcomes and Measures: The possibility of detecting the emotional expressions of happiness, sadness, anger, fear, surprise, and disgust was evaluated using intensity score values between 0 and 1, representing expressions that are absent or fully present, respectively. Results: Six patients underwent face transplant (4 men; mean [SD] age, 42 [14] years). Four underwent full face transplants, and 2 underwent partial face transplants of the middle and lower two-thirds of the face. In healthy controls, happiness was the only emotion reliably recognized in both indirect (mean [SD] intensity score, 0.92 [0.05]) and direct (mean [SD] intensity score, 0.91 [0.04]) evaluation. Indirect evaluation showed that expression of happiness significantly improved 1 year after transplant (0.04 point per year; 95% CI, 0.02 to 0.06 point per year; P = .002). Expression of happiness was restored to a mean of 43% (range, 14% to 75%) of that of healthy controls after face transplant. The expression of sadness showed a significant change only during the first year after transplant (-0.53 point per year; 95% CI, -0.82 to -0.24 point per year; P = .005). All other emotions were detectable with no significant change after transplant. Nearly all emotions were detectable in long-term direct evaluation of 3 patients, with expression of happiness restored to a mean of 26% (range, 5% to 59%) of that of healthy controls. Conclusions and Relevance: Partial restoration of facial emotional expression is possible after face transplant. Video analysis software may provide useful clinical information and aid rehabilitation after face transplant.


Assuntos
Emoções , Expressão Facial , Transplante de Face/psicologia , Adulto , Identificação Biométrica/instrumentação , Estudos de Casos e Controles , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Avaliação de Resultados em Cuidados de Saúde/métodos , Fatores de Tempo
4.
Sci Rep ; 9(1): 13566, 2019 09 19.
Artigo em Inglês | MEDLINE | ID: mdl-31537843

RESUMO

We present a novel biometric authentication system enabled by ratiometric analysis of impedance of fingers. In comparison to the traditional biometrics that relies on acquired images of structural information of physiological characteristics, our biological impedance approach not only eliminates any practical means of making fake copies of the relevant physiological traits but also provides reliable features of biometrics using the ratiometric impedance of fingers. This study shows that the ratiometric features of the impedance of fingers in 10 different pairs using 5 electrodes at the fingertips can reduce the variation due to undesirable factors such as temperature and day-to-day physiological variations. By calculating the ratio of impedances, the difference between individual subjects was amplified and the spectral patterns were diversified. Overall, our ratiometric analysis of impedance improved the classification accuracy of 41 subjects and reduced the error rate of classification from 29.32% to 5.86% (by a factor of 5).


Assuntos
Identificação Biométrica/instrumentação , Espectroscopia Dielétrica/instrumentação , Dedos/fisiologia , Impedância Elétrica , Humanos , Aprendizado de Máquina , Reprodutibilidade dos Testes , Temperatura
5.
J Med Syst ; 43(7): 192, 2019 May 22.
Artigo em Inglês | MEDLINE | ID: mdl-31115768

RESUMO

In medical systems for patient's authentication, keeping biometric data secure is a general problem. Many studies have presented various ways of protecting biometric data especially finger vein biometric data. Thus, It is needs to find better ways of securing this data by applying the three principles of information security aforementioned, and creating a robust verification system with high levels of reliability, privacy and security. Moreover, it is very difficult to replace biometric information and any leakage of biometrics information leads to earnest risks for example replay attacks using the robbed biometric data. In this paper presented criticism and analysis to all attempts as revealed in the literature review and discussion the proposes a novel verification secure framework based confidentiality, integrity and availability (CIA) standard in triplex blockchain-particle swarm optimization (PSO)-advanced encryption standard (AES) techniques for medical systems patient's authentication. Three stages are performed on discussion. Firstly, proposes a new hybrid model pattern in order to increase the randomization based on radio frequency identification (RFID) and finger vein biometrics. To achieve this, proposed a new merge algorithm to combine the RFID features and finger vein features in one hybrid and random pattern. Secondly, how the propose verification secure framework are followed the CIA standard for telemedicine authentication by combination of AES encryption technique, blockchain and PSO in steganography technique based on proposed pattern model. Finally, discussed the validation and evaluation of the proposed verification secure framework.


Assuntos
Identificação Biométrica/instrumentação , Sistemas Computacionais , Sistemas de Identificação de Pacientes/métodos , Medidas de Segurança , Dedos/irrigação sanguínea , Humanos , Dispositivo de Identificação por Radiofrequência , Padrões de Referência , Tecnologia de Sensoriamento Remoto/instrumentação , Telemedicina
6.
JMIR Mhealth Uhealth ; 7(4): e11472, 2019 04 08.
Artigo em Inglês | MEDLINE | ID: mdl-30958275

RESUMO

BACKGROUND: Patient verification by unique identification is an important procedure in health care settings. Risks to patient safety occur throughout health care settings by failure to correctly identify patients, resulting in the incorrect patient, incorrect site procedure, incorrect medication, and other errors. To avoid medical malpractice, radio-frequency identification (RFID), fingerprint scanners, iris scanners, and other technologies have been implemented in care settings. The drawbacks of these technologies include the possibility to lose the RFID bracelet, infection transmission, and impracticality when the patient is unconscious. OBJECTIVE: The purpose of this study was to develop a mobile health app for patient identification to overcome the limitations of current patient identification alternatives. The development of this app is expected to provide an easy-to-use alternative method for patient identification. METHODS: We have developed a facial recognition mobile app for improved patient verification. As an evaluation purpose, a total of 62 pediatric patients, including both outpatient and inpatient, were registered for the facial recognition test and tracked throughout the facilities for patient verification purpose. RESULTS: The app was developed to contain 5 main parts: registration, medical records, examinations, prescriptions, and appointments. Among 62 patients, 30 were outpatients visiting plastic surgery department and 32 were inpatients reserved for surgery. Whether patients were under anesthesia or unconscious, facial recognition verified all patients with 99% accuracy even after a surgery. CONCLUSIONS: It is possible to correctly identify both outpatients and inpatients and also reduce the unnecessary cost of patient verification by using the mobile facial recognition app with great accuracy. Our mobile app can provide valuable aid to patient verification, including when the patient is unconscious, as an alternative identification method.


Assuntos
Identificação Biométrica/instrumentação , Reconhecimento Facial , Aplicativos Móveis/normas , Segurança do Paciente/normas , Adolescente , Identificação Biométrica/métodos , Identificação Biométrica/normas , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Masculino , Aplicativos Móveis/tendências , Segurança do Paciente/estatística & dados numéricos , Estudos de Validação como Assunto , Adulto Jovem
7.
IEEE Trans Pattern Anal Mach Intell ; 41(10): 2511-2524, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-30040627

RESUMO

We open source an easy to assemble, spoof resistant, high resolution, optical fingerprint reader, called RaspiReader, using ubiquitous components. By using our open source STL files and software, RaspiReader can be built in under one hour for only US $175. As such, RaspiReader provides the fingerprint research community a seamless and simple method for quickly prototyping new ideas involving fingerprint reader hardware. In particular, we posit that this open source fingerprint reader will facilitate the exploration of novel fingerprint spoof detection techniques involving both hardware and software. We demonstrate one such spoof detection technique by specially customizing RaspiReader with two cameras for fingerprint image acquisition. One camera provides high contrast, frustrated total internal reflection (FTIR) fingerprint images, and the other outputs direct images of the finger in contact with the platen. Using both of these image streams, we extract complementary information which, when fused together and used for spoof detection, results in marked performance improvement over previous methods relying only on grayscale FTIR images provided by COTS optical readers. Finally, fingerprint matching experiments between images acquired from the FTIR output of RaspiReader and images acquired from a COTS reader verify the interoperability of the RaspiReader with existing COTS optical readers.


Assuntos
Identificação Biométrica/instrumentação , Dermatoglifia , Processamento de Imagem Assistida por Computador/métodos , Software , Algoritmos , Identificação Biométrica/métodos , Desenho de Equipamento , Dedos/diagnóstico por imagem , Humanos , Reconhecimento Automatizado de Padrão
8.
Sensors (Basel) ; 18(8)2018 Aug 20.
Artigo em Inglês | MEDLINE | ID: mdl-30127306

RESUMO

Multimodal biometrics are promising for providing a strong security level for personal authentication, yet the implementation of a multimodal biometric system for practical usage need to meet such criteria that multimodal biometric signals should be easy to acquire but not easily compromised. We developed a wearable wrist band integrated with multispectral skin photomatrix (MSP) and electrocardiogram (ECG) sensors to improve the issues of collectability, performance and circumvention of multimodal biometric authentication. The band was designed to ensure collectability by sensing both MSP and ECG easily and to achieve high authentication performance with low computation, efficient memory usage, and relatively fast response. Acquisition of MSP and ECG using contact-based sensors could also prevent remote access to personal data. Personal authentication with multimodal biometrics using the integrated wearable wrist band was evaluated in 150 subjects and resulted in 0.2% equal error rate ( EER ) and 100% detection probability at 1% FAR (false acceptance rate) ( PD . 1 ), which is comparable to other state-of-the-art multimodal biometrics. An additional investigation with a separate MSP sensor, which enhanced contact with the skin, along with ECG reached 0.1% EER and 100% PD . 1 , showing a great potential of our in-house wearable band for practical applications. The results of this study demonstrate that our newly developed wearable wrist band may provide a reliable and easy-to-use multimodal biometric solution for personal authentication.


Assuntos
Identificação Biométrica/instrumentação , Eletrocardiografia/instrumentação , Dispositivos Eletrônicos Vestíveis , Punho , Humanos
9.
PLoS One ; 13(3): e0194111, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29565989

RESUMO

Biometric recognition is currently implemented in several authentication contexts, most recently in mobile devices where it is expected to complement or even replace traditional authentication modalities such as PIN (Personal Identification Number) or passwords. The assumed convenience characteristics of biometrics are transparency, reliability and ease-of-use, however, the question of whether biometric recognition is as intuitive and straightforward to use is open to debate. Can biometric systems make some tasks easier for people with accessibility concerns? To investigate this question, an accessibility evaluation of a mobile app was conducted where test subjects withdraw money from a fictitious ATM (Automated Teller Machine) scenario. The biometric authentication mechanisms used include face, voice, and fingerprint. Furthermore, we employed traditional modalities of PIN and pattern in order to check if biometric recognition is indeed a real improvement. The trial test subjects within this work were people with real-life accessibility concerns. A group of people without accessibility concerns also participated, providing a baseline performance. Experimental results are presented concerning performance, HCI (Human-Computer Interaction) and accessibility, grouped according to category of accessibility concern. Our results reveal links between individual modalities and user category establishing guidelines for future accessible biometric products.


Assuntos
Identificação Biométrica/métodos , Adolescente , Adulto , Identificação Biométrica/instrumentação , Segurança Computacional/instrumentação , Dermatoglifia , Face/anatomia & histologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Aplicativos Móveis , Reprodutibilidade dos Testes , Voz , Adulto Jovem
10.
Opt Express ; 26(2): 1962-1977, 2018 Jan 22.
Artigo em Inglês | MEDLINE | ID: mdl-29401917

RESUMO

We report a parallel lensless compressive imaging system, which enjoys real-time reconstruction using deep convolutional neural networks. A prototype composed of a low-cost LCD, 16 photo-diodes and isolation chambers, has been built. Each of these 16 channels captures a fraction of the scene with 16×16 pixels and they are performing in parallel. An efficient inversion algorithm based on deep convolutional neural networks is developed to reconstruct the image. We have demonstrated encouraging results using only 2% (relative to pixel numbers, e.g. 5 for a block with 16×16 pixels) measurements per sensor for digits and around 10% measurements per sensor for facial images.


Assuntos
Algoritmos , Identificação Biométrica/métodos , Processamento de Imagem Assistida por Computador/métodos , Redes Neurais de Computação , Fotografação/métodos , Identificação Biométrica/instrumentação , Desenho de Equipamento , Reconhecimento Facial , Dedos , Humanos , Aprendizado de Máquina , Imagem Óptica/instrumentação , Imagem Óptica/métodos , Fotografação/instrumentação
11.
Ann Biomed Eng ; 46(1): 122-134, 2018 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-29030801

RESUMO

In this study, to advance smart health applications which have increasing security/privacy requirements, we propose a novel highly wearable ECG-based user identification system, empowered by both non-standard convenient ECG lead configurations and deep learning techniques. Specifically, to achieve a super wearability, we suggest situating all the ECG electrodes on the left upper-arm, or behind the ears, and successfully obtain weak but distinguishable ECG waveforms. Afterwards, to identify individuals from weak ECG, we further present a two-stage framework, including ECG imaging and deep feature learning/identification. In the former stage, the ECG heartbeats are projected to a 2D state space, to reveal heartbeats' trajectory behaviors and produce 2D images by a split-then-hit method. In the second stage, a convolutional neural network is introduced to automatically learn the intricate patterns directly from the ECG image representations without heavy feature engineering, and then perform user identification. Experimental results on two acquired datasets using our wearable prototype, show a promising identification rate of 98.4% (single-arm-ECG) and 91.1% (ear-ECG), respectively. To the best of our knowledge, it is the first study on the feasibility of using single-arm-ECG/ear-ECG for user identification purpose, which is expected to contribute to pervasive ECG-based user identification in smart health applications.


Assuntos
Identificação Biométrica/métodos , Eletrocardiografia/instrumentação , Dispositivos Eletrônicos Vestíveis , Braço , Identificação Biométrica/instrumentação , Orelha , Humanos , Processamento de Imagem Assistida por Computador , Aprendizado de Máquina
12.
J Biophotonics ; 11(4): e201700153, 2018 04.
Artigo em Inglês | MEDLINE | ID: mdl-29027755

RESUMO

The work describes features of the compressed sensing (CS) approach utilized for development of a wearable system for wrist vein recognition with single-pixel detection; we consider this system useful for biometrics authentication purposes. The CS approach implies use of a spatial light modulation (SLM) which, in our case, can be performed differently-with a liquid crystal display or diffusely scattering medium. We show that compressed sensing combined with above-mentioned means of SLM allows us to avoid using an optical system-a limiting factor for wearable devices. The trade-off between the 2 different SLM approaches regarding issues of practical implementation of CS approach for wrist vein recognition purposes is discussed. A possible solution of a misalignment problem-a typical issue for imaging systems based upon 2D arrays of photodiodes-is also proposed. Proposed design of the wearable device for wrist vein recognition is based upon single-pixel detection.


Assuntos
Identificação Biométrica/instrumentação , Dispositivos Ópticos , Veias , Dispositivos Eletrônicos Vestíveis , Punho/irrigação sanguínea , Humanos , Processamento de Sinais Assistido por Computador
13.
Opt Express ; 25(25): 31696-31707, 2017 Dec 11.
Artigo em Inglês | MEDLINE | ID: mdl-29245841

RESUMO

We propose a method of extending the depth of field to twice that achievable by conventional lenses for the purpose of a low cost iris recognition front-facing camera in mobile phones. By introducing intrinsic primary chromatic aberration in the lens, the depth of field is doubled by means of dual wavelength illumination. The lens parameters (radius of curvature, optical power) can be found analytically by using paraxial raytracing. The effective range of distances covered increases with dispersion of the glass chosen and with larger distance for the near object point.


Assuntos
Identificação Biométrica/métodos , Telefone Celular , Iris , Lentes , Identificação Biométrica/instrumentação , Desenho de Equipamento , Humanos , Imagem Óptica
14.
PLoS One ; 11(12): e0166204, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27935955

RESUMO

The three-dimensional shape of the ear has been proven to be a stable candidate for biometric authentication because of its desirable properties such as universality, uniqueness, and permanence. In this paper, a special laser scanner designed for online three-dimensional ear acquisition was described. Based on the dataset collected by our scanner, two novel feature classes were defined from a three-dimensional ear image: the global feature class (empty centers and angles) and local feature class (points, lines, and areas). These features are extracted and combined in an optimal way for three-dimensional ear recognition. Using a large dataset consisting of 2,000 samples, the experimental results illustrate the effectiveness of fusing global and local features, obtaining an equal error rate of 2.2%.


Assuntos
Identificação Biométrica/métodos , Orelha/anatomia & histologia , Processamento de Imagem Assistida por Computador/estatística & dados numéricos , Imageamento Tridimensional/estatística & dados numéricos , Aprendizado de Máquina , Identificação Biométrica/instrumentação , Conjuntos de Dados como Assunto , Humanos , Processamento de Imagem Assistida por Computador/métodos , Lasers
15.
J Med Syst ; 40(11): 230, 2016 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-27646969

RESUMO

Recently several authentication schemes are proposed for telecare medicine information system (TMIS). Many of such schemes are proved to have weaknesses against known attacks. Furthermore, numerous such schemes cannot be used in real time scenarios. Because they assume a single server for authentication across the globe. Very recently, Amin et al. (J. Med. Syst. 39(11):180, 2015) designed an authentication scheme for secure communication between a patient and a medical practitioner using a trusted central medical server. They claimed their scheme to extend all security requirements and emphasized the efficiency of their scheme. However, the analysis in this article proves that the scheme designed by Amin et al. is vulnerable to stolen smart card and stolen verifier attacks. Furthermore, their scheme is having scalability issues along with inefficient password change and password recovery phases. Then we propose an improved scheme. The proposed scheme is more practical, secure and lightweight than Amin et al.'s scheme. The security of proposed scheme is proved using the popular automated tool ProVerif.


Assuntos
Identificação Biométrica/instrumentação , Segurança Computacional/instrumentação , Telemedicina/instrumentação , Confidencialidade , Troca de Informação em Saúde , Cartões Inteligentes de Saúde , Humanos
16.
Roplac ; 5(1): 17-20, jan. 2015. ilus, tab
Artigo em Português | BBO - Odontologia | ID: biblio-858927

RESUMO

A identificação humana pode ser realizada através de diferentes técnicas. Sendo o profissional em odontologialegal capaz de identificar cadáveres desconhecidos, ele pode optar pelo método que melhor preencha ascaracterísticas necessárias para o sucesso dessa identificação. Este artigo relata um estudo de caso utilizando atécnica comparativa prosopográfica no auxílio de uma identificação positiva


The human identification can be performed through different techniques. As the forensic dentists can identifyunknown corpses, he can choose the method that best meets the characteristics necessary for the success ofthis identification. This article reports a case using the comparative technique prosopographic in a positiveidentification


Assuntos
Identificação Biométrica/instrumentação , Odontologia Legal/legislação & jurisprudência , Fotografação , Brasil
17.
Glob Health Action ; 9: 29854, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-26993473

RESUMO

BACKGROUND: The reliability of counts for estimating population dynamics and disease burdens in communities depends on the availability of a common unique identifier for matching general population data with health facility data. Biometric data has been explored as a feasible common identifier between the health data and sociocultural data of resident members in rural communities within the Kintampo Health and Demographic Surveillance System located in the central part of Ghana. OBJECTIVE: Our goal was to assess the feasibility of using fingerprint identification to link community data and hospital data in a rural African setting. DESIGN: A combination of biometrics and other personal identification techniques were used to identify individual's resident within a surveillance population seeking care in two district hospitals. Visits from resident individuals were successfully recorded and categorized by the success of the techniques applied during identification. The successes of visits that involved identification by fingerprint were further examined by age. RESULTS: A total of 27,662 hospital visits were linked to resident individuals. Over 85% of those visits were successfully identified using at least one identification method. Over 65% were successfully identified and linked using their fingerprints. Supervisory support from the hospital administration was critical in integrating this identification system into its routine activities. No concerns were expressed by community members about the fingerprint registration and identification processes. CONCLUSIONS: Fingerprint identification should be combined with other methods to be feasible in identifying community members in African rural settings. This can be enhanced in communities with some basic Demographic Surveillance System or census information.


Assuntos
Identificação Biométrica/instrumentação , Serviços de Saúde Comunitária , Dermatoglifia , Registros Eletrônicos de Saúde/organização & administração , Administração Hospitalar , Armazenamento e Recuperação da Informação/métodos , Assistência à Saúde , Gana , Humanos , Vigilância da População , Reprodutibilidade dos Testes , Serviços de Saúde Rural/organização & administração
18.
Annu Int Conf IEEE Eng Med Biol Soc ; 2016: 2541-2544, 2016 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-28268840

RESUMO

The most commonly used method for user authentication in ICT services or systems is the application of identification tools such as passwords or personal identification numbers (PINs). The rapid development in ICT technology regarding smart devices (laptops, tablets and smartphones) has allowed also the advance of hardware components that capture several biometric traits such as fingerprints and voice. These components are aiming among others to overcome weaknesses and flaws of password usage under the prism of improved user authentication with higher level of security, privacy and usability. To this respect, the potential application of biometrics for secure user authentication regarding access in systems with sensitive data (i.e. patient's data from electronic health records) shows great potentials. SpeechXRays aims to provide a user recognition platform based on biometrics of voice acoustics analysis and audio-visual identity verification. Among others, the platform aims to be applied as an authentication tool for medical personnel in order to gain specific access to patient's electronic health records. In this work a short description of SpeechXrays implementation tool regarding eHealth is provided and analyzed. This study explores security and privacy issues, and offers a comprehensive overview of biometrics technology applications in addressing the e-Health security challenges. We present and describe the necessary requirement for an eHealth platform concerning biometric security.


Assuntos
Identificação Biométrica/instrumentação , Identificação Biométrica/métodos , Segurança Computacional/instrumentação , Registros Eletrônicos de Saúde , Osteoartrite/diagnóstico , Acesso à Informação , Acústica , Biometria , Sistemas Computacionais , Confidencialidade , Dermatoglifia , Reações Falso-Positivas , Humanos , Internet , Osteoartrite/fisiopatologia , Projetos Piloto , Privacidade , Interface para o Reconhecimento da Fala , Telemedicina , Voz
19.
Sud Med Ekspert ; 58(4): 32-36, 2015.
Artigo em Russo | MEDLINE | ID: mdl-26521314

RESUMO

This paper is designed to report the results of the comparative analysis of the methods currently employed in the government-controlled and private agencies of forensic medical expertise for the personality identification based on the voice and sounding speech recorded on the phonograms.


Assuntos
Identificação Biométrica , Medicina Legal/métodos , Medida da Produção da Fala , Qualidade da Voz , Identificação Biométrica/instrumentação , Identificação Biométrica/métodos , Prova Pericial , Humanos , Fonética , Reprodutibilidade dos Testes , Acústica da Fala , Medida da Produção da Fala/instrumentação , Medida da Produção da Fala/métodos
20.
J Med Syst ; 39(11): 148, 2015 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-26364201

RESUMO

As a result of the increased demand for improved life styles and the increment of senior citizens over the age of 65, new home care services are demanded. Simultaneously, the medical sector is increasingly becoming the new target of cybercriminals due the potential value of users' medical information. The use of biometrics seems an effective tool as a deterrent for many of such attacks. In this paper, we propose the use of electrocardiograms (ECGs) for the identification of individuals. For instance, for a telecare service, a user could be authenticated using the information extracted from her ECG signal. The majority of ECG-based biometrics systems extract information (fiducial features) from the characteristics points of an ECG wave. In this article, we propose the use of non-fiducial features via the Hadamard Transform (HT). We show how the use of highly compressed signals (only 24 coefficients of HT) is enough to unequivocally identify individuals with a high performance (classification accuracy of 0.97 and with identification system errors in the order of 10(-2)).


Assuntos
Identificação Biométrica/instrumentação , Eletrocardiografia/instrumentação , Serviços de Assistência Domiciliar , Processamento de Sinais Assistido por Computador/instrumentação , Telemedicina/instrumentação , Algoritmos , Segurança Computacional , Humanos
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