The Experts below are selected from a list of 258 Experts worldwide ranked by ideXlab platform
Mary E. Brand - One of the best experts on this subject based on the ideXlab platform.
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Enamel Nail Polish Does Not Interfere With Pulse Oximetry Among Normoxic Volunteers
Journal of Clinical Monitoring and Computing, 2002Co-Authors: Thomas M. Brand, Mary E. BrandAbstract:Objective. To determine if enamel Nail polish interferes withpulse oximetry. Design . Laboratory investigation. Participants . 12 healthy nonsmoking volunteers. Methods .Spectrophotometry was performed on polystyrene cuvettes painted with 3uniform layers of Nail polish enamel in triplicate. Absorbances werecompared at 660 and 940 nm for 10 colors across the visible spectrum anddocumented by the Institute of Electrical and Electronic Engineers colorcode against Pantone^™ matches on a color scanner.Colors were then selected that had the greatestA_660–A_940 difference and pulse oximetry(Nellcor N-209A. Pleasanton , CA) was performed on Nails painted withthese colors on 12 subjects using an unpainted digit as a control. Results . When tested by the oximeter, there were noSpO_2 differences detected between Nail polish colors, norwere there any differences between the painted and the unpainted controldigits across subjects (F = 0.51, ANOVA; p = 0.67). Blue (B),green (G), and lime green (G’) possessed the largestA_660–A_940 difference and potentially couldinterfere with pulse oximetry but did not do so in the clinical model. Conclusion . Enamel Finger Nail polish pigments do not interferewith pulse oximetry as previously reported, theA_660–A_940 difference must be greater than1.88 ± 0.23 SD AU in order to affect pulse oximetry.
Thomas M. Brand - One of the best experts on this subject based on the ideXlab platform.
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Enamel Nail Polish Does Not Interfere With Pulse Oximetry Among Normoxic Volunteers
Journal of Clinical Monitoring and Computing, 2002Co-Authors: Thomas M. Brand, Mary E. BrandAbstract:Objective. To determine if enamel Nail polish interferes withpulse oximetry. Design . Laboratory investigation. Participants . 12 healthy nonsmoking volunteers. Methods .Spectrophotometry was performed on polystyrene cuvettes painted with 3uniform layers of Nail polish enamel in triplicate. Absorbances werecompared at 660 and 940 nm for 10 colors across the visible spectrum anddocumented by the Institute of Electrical and Electronic Engineers colorcode against Pantone^™ matches on a color scanner.Colors were then selected that had the greatestA_660–A_940 difference and pulse oximetry(Nellcor N-209A. Pleasanton , CA) was performed on Nails painted withthese colors on 12 subjects using an unpainted digit as a control. Results . When tested by the oximeter, there were noSpO_2 differences detected between Nail polish colors, norwere there any differences between the painted and the unpainted controldigits across subjects (F = 0.51, ANOVA; p = 0.67). Blue (B),green (G), and lime green (G’) possessed the largestA_660–A_940 difference and potentially couldinterfere with pulse oximetry but did not do so in the clinical model. Conclusion . Enamel Finger Nail polish pigments do not interferewith pulse oximetry as previously reported, theA_660–A_940 difference must be greater than1.88 ± 0.23 SD AU in order to affect pulse oximetry.
Yiming Zhou - One of the best experts on this subject based on the ideXlab platform.
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Wearable Handwriting Recognition with an Inertial Sensor on a Finger Nail
2017 14th IAPR International Conference on Document Analysis and Recognition (ICDAR), 2017Co-Authors: Lei Jing, Yiming ZhouAbstract:In this paper, a new handwriting recognition system is proposed with an inertial sensor attached on the Fingertip to automatically digitalize the cursive handwriting characters. Specifically, it focus on the issues and methods about the sensor node design, automatic spotting, reconstruction of writing trajectory, and feature selection. The performance of the system was evaluated on a set of 36 vocabularies (10 digits and 26 English lower-case characters). The recognition rate is 88.0% on SVM with user-independent 5 fold cross evaluation protocol.
M.a Hanmandlu - One of the best experts on this subject based on the ideXlab platform.
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biometric authentication using Finger Nail plates
Expert Systems With Applications, 2014Co-Authors: Amioy Kumar, Shruti Garg, M.a HanmandluAbstract:This paper attempts to bring a new inventive and non-mainstream biometric development to the fore. A completely automated and unified approach to authenticate individuals using Finger Nail plate surface images has been proposed. There has not been any attempt in utilizing the texture and the contour information of the Nail-plate for human authentication in literature. This has motivated us to explore the Nail plate based identification for security applications and applying approaches that ascertain the best possible performance. The complex technique of Interferometry is perhaps the most widely used approach in the literature to carry out analysis on Nail-bed which is the inner part of the Nail unit. In this paper, we propose a very convenient and efficient method by acquiring low resolution images of Nail plate surface which is the outermost part of the Nail unit. The contour and texture characteristics of Nail plates from three Fingers are represented by the appearance and shape based feature descriptors. The paper presents two ways of integrating the Nail-plate features from three Fingers: (1) score level rules for fusion of matching scores and (2) the classifier based fusion of matching scores by employing decision tree and support vector machines. The experimental results from 180 users and a total of 2700 Nail plate images validate the contributions from this paper.
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Biometric authentication using Finger Nail plates
Expert Systems with Applications, 2014Co-Authors: Amioy Kumar, Shruti Garg, M.a HanmandluAbstract:This paper attempts to bring a new inventive and non-mainstream biometric development to the fore. A completely automated and unified approach to authenticate individuals using Finger Nail plate surface images has been proposed. There has not been any attempt in utilizing the texture and the contour information of the Nail-plate for human authentication in literature. This has motivated us to explore the Nail plate based identification for security applications and applying approaches that ascertain the best possible performance. The complex technique of Interferometry is perhaps the most widely used approach in the literature to carry out analysis on Nail-bed which is the inner part of the Nail unit. In this paper, we propose a very convenient and efficient method by acquiring low resolution images of Nail plate surface which is the outermost part of the Nail unit. The contour and texture characteristics of Nail plates from three Fingers are represented by the appearance and shape based feature descriptors. The paper presents two ways of integrating the Nail-plate features from three Fingers: (1) score level rules for fusion of matching scores and (2) the classifier based fusion of matching scores by employing decision tree and support vector machines. The experimental results from 180 users and a total of 2700 Nail plate images validate the contributions from this paper. © 2012 Elsevier B.V. All rights reserved.
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A unified authentication framework using Finger Nail plate biometric
2013 IEEE International Conference on Technologies for Homeland Security (HST), 2013Co-Authors: Shruti Garg, M.a Hanmandlu, Amioy Kumar, Shantaram VasikarlaAbstract:This paper proposes a novel approach to segment the Nail-plate as the region of interest (ROI) from the acquired hand samples. The proposed approach works at the pixel-level and classifies each pixel into either Nail-plate or non Nail-plate regions. The Gabor-mask is employed on the extracted Nail-plate to obtain an accurate ROI irrespective of grown Nail-plate (as in female samples) by minimizing the segmentation error. Both Wavelet and Independent component analysis (ICA) feature-descriptors that we have used here exploit the local texture and shape of the segmented Nail-plate regions. Various score-level-fusion schemes are implemented to assert the veracity of the claimed identity. Receiver operating characteristics (ROC) shows that ring Nail-plate performs the best among the three Nail-plates with ICA yielding better results than Wavelet. The fusion of ICA and Wavelet features shows that the performance of product-rule is better than sum-rule at FAR=0.1%. To consolidate the ranked-identities from three Nail-plates of each sample, the rank level fusion of Wavelet and ICA features shows that the rank-1 recognition rate of Borda-count and Logistic-regression method is better than Highest-rank. Thus, the rigorous experimental analysis on 180 users with 5 samples per user and three Nail-plates (mainly of index, middle, and ring Finger) of each sample demonstrates the utility of this new biometric identifier for several medical, surveillance, and forensic applications.
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ISDA - Biometric authentication using Finger Nail surface
2012 12th International Conference on Intelligent Systems Design and Applications (ISDA), 2012Co-Authors: Strati Garg, Amioy Kumar, M.a HanmandluAbstract:This paper presents a new biometric system based on the outer surface of the Finger Nail. There has not been any attempt in utilizing Nail shape and texture for human authentication. The Nail bed information, imitated on the Nail surface proves to be a very unique and stable biometric identifier for personal authentication. However, research literature presents some complex set-up and the use of interferometer technique for extraction of Nail bed details. In this work we propose a very simple and convenient method to segment Nail surface from the user hand and use it as a biometric identifier. We further extract texture feature from Nail-surface and our experimental results from 180 users validate the contributions from this paper.
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Biometric authentication using Finger Nail surface
2012 12th International Conference on Intelligent Systems Design and Applications (ISDA), 2012Co-Authors: Strati Garg, Amioy Kumar, M.a HanmandluAbstract:This paper presents a new biometric system based on the outer surface of the Finger Nail. There has not been any attempt in utilizing Nail shape and texture for human authentication. The Nail bed information, imitated on the Nail surface proves to be a very unique and stable biometric identifier for personal authentication. However, research literature presents some complex set-up and the use of interferometer technique for extraction of Nail bed details. In this work we propose a very simple and convenient method to segment Nail surface from the user hand and use it as a biometric identifier. We further extract texture feature from Nail-surface and our experimental results from 180 users validate the contributions from this paper.
Sathya Thambiraj - One of the best experts on this subject based on the ideXlab platform.
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management of proximal phalangeal fractures of the hand using Finger Nail traction and a digital splint a prospective study of 43 cases
Clinics in Orthopedic Surgery, 2012Co-Authors: Shah Jehan, Thangavel Chandraprakasam, Sathya ThambirajAbstract:Phalanges are the most common sites for fractures in the hand.1,2) If not managed properly, these apparently minor fractures can result in long lasting deformity due to reduction in the range of motion in the adjacent joints.3) The annual incidence of phalangeal fractures is 2.9%.3) They are more common in the male age group 20-29 years.3-7) Proximal phalangeal fractures constitute about 13% of all hand fractures.4) Various mechanisms have been reported in literate to cause these fractures. The most common mechanisms include road traffic accidents, industrial injuries, falls and sport related injuries.3,4) Proximal phalangeal fractures are difficult to treat irrespective of the mode of treatment. Surgical stabilization can result in further tissue trauma resulting in adherence of soft tissues and reduction in the range of movement in the adjacent joints.5) In addition to that, the internal fixation devices can interfere with tendon gliding. The conservative techniques such as splints and braces on the other hand may not be able to maintain the reduced position. This can result in delayed union or malunion. Any prolonged immobilization can result in stiffness of the joints and require long-term physical therapy. The objective of treating hand fractures is to obtain fracture union in acceptable alignment and early mobilization to prevent stiffness.6,7) With metacarpophalangeal (MCP) joint flexed at 90 degrees, the proximal phalangeal fractures are usually held in reduction.5,8) The collateral ligaments of the MCP joint in flexed position are taut with minimal chances of stiffness due to contracture. The extension of proximal interphalangeal (PIP) joints prevents volar plate contracture.6) The longitudinal traction applied in this position makes the extensor and flexor tendons tense, which provides dorsal and volar stability. This study reports the results of 43 proximal phalangeal fractures which were managed by a Nail traction technique. Longitudinal traction was applied through the Finger Nail. The soft tissues around the proximal phalanx were made tense with traction to provide stability and maintain reduction.