• 제목/요약/키워드: glove

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Automatic Hand Measurement System from 2D Hand Image for Customized Glove Production

  • Han, Hyun Sook;Park, Chang Kyu
    • 한국의류산업학회지
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    • 제18권4호
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    • pp.468-476
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    • 2016
  • Recent advancements in optics technology enable us to realize fast scans of hands using two-dimensional (2D) image scanners. In this paper, we propose an automatic hand measurement system using 2D image scanners for customized glove production. To develop the automatic hand measurement system, firstly hand scanning devices has been constructed. The devices are designed to block external lights and have user interface to guide hand posture during scanning. After hands are scanned, hand contour is extracted using binary image processing, noise elimination and outline tracing. And then, 19 hand landmarks are automatically detected using an automatic hand landmark detection algorithm based on geometric feature analysis. Then, automatic hand measurement program is executed based on the automatically extracted landmarks and measurement algorithms. The automatic hand measurement algorithms have been developed for 18 hand measurements required for custom-made glove pattern making. The program has been coded using the C++ programming language. We have implemented experiments to demonstrate the validity of the system using 11 subjects (8 males, 3 females) by comparing automatic 2D scan measurements with manual measurements. The result shows that the automatic 2D scan measurements are acceptable in the customized glove making industry. Our evaluation results confirm its effectiveness and robustness.

몰입형 가상현실 프로그램 Rapael Smart Glove가 뇌졸중 환자의 상지기능에 미치는 영향 (Effects of Immersive Virtual Reality Intervention on Upper Extremity Function in Post-Stroke Patients)

  • 배원진;감경윤
    • 대한통합의학회지
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    • 제5권3호
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    • pp.1-9
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    • 2017
  • Purpose: The purpose of this study was to investigate the effects of an immersive, virtual reality-based exercise program on range of motion and dexterity in the upper extremities of stroke patients. Methods: Fifteen patients with hemiparesis after stroke participated in this study. The participants participated in Rapael Semart GloveTM, an immersive, virtual reality-based exercise program, performed for 30 minutes-, 3 times per week for 4 weeks. The Rapael Smart GloveTM program and a Box and Block Test (BBT) were used to measure range of motion and to assess dexterity, respectively, pre-and post-intervention. Results: Range of motion in pronation and supination of the forearm and flexion, extension, and ulnar deviation of the wrist improved after the intervention. Dexterity measured by BBT also improved. However, range of motion in flexion and extension of the fingers and radial deviation of the wrist did not improve. Conclusion: This study presents the effects of an immersive, virtual reality-based exercise program on hand function. In the future, a study comparing an immersive, virtual reality- based exercise program to other upper-extremity interventions for stroke patients should be conducted. A study about the effects of an immersive virtual reality program on activities of daily living is also needed.

이소시안화물 독성에 대한 보호장갑의 성능 연구 (A Study on Performance of Protective Gloves to Isocyanate Toxicity)

  • 이수길;디노피사니엘로;이내우
    • 한국안전학회지
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    • 제23권6호
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    • pp.62-69
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    • 2008
  • As the concerns of dermal exposure of spray painters to isocyanates in the automobile industry, glove performance was examined like permeation rate and breakthrough time including fatigue test. Methylene chloride was used as the solvent for derivatization of the isocyanates with a 97.5% recovery. Ghost wipe pads were used to wipe the surface of the glove material after chemical penetration through the glove material placed under a disposable test cell. Several solvents were tested, such as thinner(xylene, toluene) and cleaning agent(acetone) by using a standard permeation test cell(AS/NZS standard 2161. part 10.3). Solvents accelerate chemical permeation through the gloves more quickly than pure HDI hardener products. The longest breakthrough times were from Nitrosolve gloves, not detected in 8 hours, compared with others like Latex, Neoprene, TNT and Dermo Plus. Therefore Nitrosolve gloves could be recommended as personal protective equipment in crash repair shops. In addition, revised exposure limit of korean regulation should be suggested for employee to minimize the risk of health symptoms.

작업용 장갑 개발을 위한 성인 남성 손 형태 분석 (Analyzing Adult Male Hand Shape for the Development of Work Gloves)

  • 차수정
    • 패션비즈니스
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    • 제27권4호
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    • pp.21-37
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    • 2023
  • This study aimed to classify the hand types of adult males aged 20 to 69 years using three-dimensional measurement data from the 2020 8th Korean Anthropometric Survey, the latest measurement data from the National Institute of Standards and Technology Size Korea, and explore the characteristics of each type. Through this, I aimed to draw implications for the development of work gloves. The factors that make up an adult male's hand were categorized into hand and finger thickness factors, palm length factors, and finger length factors. Adult male hands were categorized into four types: small, thin hands and long fingers; thick, long fingers; medium, short hands and fingers; and large, thin, short fingers. The analysis showed that the younger the age, the more slender and long the hands and fingers, and as age increased, hands and fingers became shorter and thicker. Implications for the development of work gloves included the need for size segmentation based on the age of the work glove user, changes in the way glove dimensions are set based on hand length and hand circumference, and the need to segment gloves by the type of work. Hand typing in future research should be done according to occupational groups, and glove patterns should be developed for each type of work based on the results of this study.

An instrumented glove for grasp specification in virtual reality based point-and-direct telerobotics

  • Yun, Myung Hwan;Cannon, David;Freivalds, Andris
    • 대한인간공학회지
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    • 제15권2호
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    • pp.165-176
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    • 1996
  • Hand posture and force, which define aspects of the way an object is grasped, are features of robotic manipulation. A means for specifying these grasping "flavors" has been developed that uses an instrumented glove equipped with joint and force sensors. The new grasp specification system is being used at the Pennsylvania State University (Penn State) in a Virtual Reality based Point-and-Direct (VR-PAD) robotics implementation. In the Computer Integrated Manufacturing (CIM) Laboratory at Penn State, hand posture and force data were collected for manipulating bricks and other items that require varying amounts of force at multiple pressure points. The feasibility of measuring desired grasp characteristics was demonstrated for a modified Cyberglove impregnated with FSR (Force Sensitive Resistor) pressure sensors in the fingertips. A joint/force model relating the parameters of finger articulation and pressure to various lifting tasks was validated for the instrumented "wired" glove. Operators using such a modified glove may ultimately be able to configure robot grasping tasks in environments involving hazardous waste remediation, flexible manufactruing, space operations and other flexible robotics applications. In each case, the VR-PAD approach improved the computational and delay problems of real-time multiple- degree-of-freedom force feedback telemanipulation.

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장갑 패턴 개발을 위한 손의 유형 분류 (Classification of Hand Types for the Development of Glove Patterns)

  • 임지영
    • 대한가정학회지
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    • 제43권8호
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    • pp.115-122
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    • 2005
  • The hand performs functions such as grabbing and other movements. In order to accomplish these movements in various kinds of operational environments, appropriate gloves must be worn to protect your hands. Choosing the appropriate type of glove is very important when wearing gloves in these types of operational environments. The reasons one wears gloves varies depending on age and gender. Unmarried women in their early twenties, for example, occasionally wear gloves for decoration rather than for functional reasons. However, previous studies examined a range of topics, and as such investigations dealing with specific body shape and demands of consumer are needed. Therefore in this study, the hands of unmarried women ranging in age from 20 to 24 were measured and hand shape types were analyzed in order to present basal data which can be used to help design improved glove patterns and produce appropriate, functional gloves. A total of 261 Korean women were measured. Fifty-seven right hand dimensions were measured and five dimensions from both hands were measured. Six factors were identified through factor analysis and those factors constituted $73.259\%$ of total variance. Two clusters of hand shapes were categorized using 6 factor scores by cluster analysis. Type 1 hand shape is defined as long hands with small width, girth, and thickness, long and thin fingers, and high vertical palm height. Type 2 hand shape is defined as short hands with large width, girth and thickness, short fingers, thick knuckles, and short vertical palm height. The characteristics of type 1 and 2 hand shapes are similar to women's hand type classification results from previous reports, but there was a significant difference in subject distribution by type. Therefore, standard data on hand shapes should be produced by developing measuring instruments and selling more accurate standard measuring points. By doing this it could help in the development of improved glove patterns, and also aid in planning production based on hand type.

투수의 글러브 색상이 타자의 타격 집중도에 미치는 영향 (The Impact of Color on the Glove Pitcher Hitting a Batter Concentration)

  • 김현빈;김병준
    • 디지털융복합연구
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    • 제15권3호
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    • pp.405-411
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    • 2017
  • 본 연구는 투수 글러브 색상이 타자의 타격 집중도에 미치는 영향을 규명하고자 하는 것에 목적이 있다. 투수의 글러브 색상은 검정색, 주황색, 베이지색 세 가지로 설정하였고 이에 따른 타자의 집중도를 분석하였다. 연구의 대상은 대전 소재에 있는 고등학교 야구선수 15명을 대상으로 하였다. 글러브 색에 따른 타격 실험을 마친 후 Nideffer(1976)가 개발한 야구에서의 주의 집중 설문지 B-TAIS의 6개 주의집중 하위척도를 본 실험에 맞게 수정 및 보완하여 사용하였다. 문항은 총 20문항으로 신뢰 계수는 0.67에서 0.85까지 분포되어 타당도가 지지되었음을 알 수 있다. 투수의 구종은 직구로 제한하였으며, 각 글러브의 색상별로 일주일씩 기한을 두고 실험을 진행하였다. 그 결과 공의 색상과 대비가 큰 색상의 글러브를 착용하였을 때, 타자의 타격 집중도가 높아지는 것으로 나타났다. 향후 다양한 투수의 구종 및 장비를 활용하여 심도 있는 연구가 이루어졌으면 한다.

높은 파지력을 가지며 촉감을 전달할 수 있는 유연한 글러브 (A Tactilely Transparent Soft Glove with High Grasping Force)

  • 정용준;김종인;전형석;이덕원;김용재
    • 제어로봇시스템학회논문지
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    • 제22권12호
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    • pp.1011-1020
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    • 2016
  • This paper introduces a tactilely transparent soft glove composed of soft materials and flexible structures. Although it is hard to achieve a high grasping force with conventional grip-assist gloves made from soft material, the proposed glove can exert a high force by using a novel structure. This structure has a triangular shape composed of flexible structural frames, soft fabric, and belts. It can produce grip-assist moment compliantly without harmful force or misalignment with the human fingers. The whole finger part that comes into contact with objects is made of thin and soft fabric in order to facilitate sensation transference. The proposed tactilely transparent soft glove enables the user to manipulate various objects owing to both the softness and high grasping force; it helps lifting heavy weight objects as well as permitting delicate tactile feeling on the palm and fingers. The proposed concept was applied to a two-finger grip-assist device for validation. In addition, the experimental results regarding grasping objects, fingertip force, and grasping force are presented.

외상성 뇌손상 환자의 손보조기 적용이 손기능에 미치는 효과 (Effects of Splints on Hand Function in Person with Traumatic Brain Injury)

  • 김은주
    • 디지털융복합연구
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    • 제16권7호
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    • pp.511-516
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    • 2018
  • 외상성 뇌손상 환자에게 일반적인 형태의 짧은 엄지보조기(thumb splint)와 헬스장갑을 수정하여 만든 장갑형 보조기를 적용하여 손기능과 기능적 과제 수행에서의 효과를 알아보고자 하였다. 대상자는 외상성 뇌손상 1인을 대상으로 하였고 개별실험연구 방법 중 동시중재교차 연구설계를 적용하였다. 짧은 엄지보조기와 맞춤 제작한 장갑형 보조기를 이용한 중재의 결과는 보조기를 적용하지 않은 손과 비교하였을 때 즉각적인 손기능의 향상이 있었으며 두 가지 보조기 중에서는 장갑형 보조기를 사용하였을 때 기능적 과제에서 더 유용하였다. 외상성 뇌손상 환자가 가지는 손기능 장애의 작업치료중재로써의 보조기가 효과적임을 확인할 수 있었고 개인별 특성에 맞춘 보조기 적용의 필요성을 확인할 수 있었다. 앞으로 유사한 대상자들에 대한 다양한 상태에서의 보조기 적용에 대한 연구가 필요하다.

How Effective Are Radiation Reducing Gloves in C-arm Fluoroscopy-guided Pain Interventions?

  • Kim, Ah Na;Chang, Young Jae;Cheon, Bo Kyung;Kim, Jae Hun
    • The Korean Journal of Pain
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    • 제27권2호
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    • pp.145-151
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    • 2014
  • Background: The physician's hands are close to the X-ray field in C-arm fluoroscopy-guided pain interventions. We prospectively investigated the radiation attenuation of Proguard RR-2 gloves. Methods: In 100 cases, the effective doses (EDs) of two dosimeters without a radiation-reducing glove were collected. EDs from the two dosimeters-one dosimeter wrapped with a glove and the other dosimeter without a glove-were also measured at the side of the table (Group 1, 140 cases) and at a location 20 cm away from the side of the table (Group 2, 120 cases). Mean differences such as age, height, weight, radiation absorbed dose (RAD), exposure time, ED, and ratio of EDs were analyzed. Results: In the EDs of two dosimeters without gloves, there were no significant differences ($39.0{\pm}36.3{\mu}Sv$ vs. $38.8{\pm}36.4{\mu}Sv$) (P = 0.578). The RAD ($192.0{\pm}182.0radcm^2$) in Group 2 was higher than that ($132.3{\pm}103.5radcm^2$) in Group 1 (P = 0.002). The ED ($33.3{\pm}30.9{\mu}Sv$) of the dosimeter without a glove in Group 1 was higher than that ($12.3{\pm}8.8{\mu}Sv$) in Group 2 (P < 0.001). The ED ($24.4{\pm}22.4{\mu}Sv$) of the dosimeter wrapped with a glove in Group 1 was higher than that ($9.2{\pm}6.8{\mu}Sv$) in Group 2 (P < 0.001). No significant differences were noted in the ratio of EDs ($73.5{\pm}6.7%$ vs. $74.2{\pm}9.3%$, P = 0.469) between Group 1 and Group 2. Conclusions: Proguard RR-2 gloves have a radiation attenuation effect of 25.8-26.5%. The radiation attenuation is not significantly different by intensity of scatter radiation or the different RADs of C-arm fluoroscopy.