• Title/Summary/Keyword: Visual analysis

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Development of Road Safety Estimation Method using Driving Simulator and Eye Camera (차량시뮬레이터 및 아이카메라를 이용한 도로안전성 평가기법 개발)

  • Doh, Tcheol-Woong;Kim, Won-Keun
    • International Journal of Highway Engineering
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    • v.7 no.4 s.26
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    • pp.185-202
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    • 2005
  • In this research, to get over restrictions of a field expreiment, we modeled a planning road through the 3D Virtual Reality and achieved data about dynamic response related to sector fluctuation and about driver's visual behavior on testers' driving the Driving Simulator Car with Eye Camera. We made constant efforts to reduce the non-reality and side effect of Driving Simulator on maximizing the accord between motion reproduction and virtual reality based on data Driving Simulator's graphic module achieved by dynamic analysis module. Moreover, we achieved data of driver's natural visual behavior using Eye Camera(FaceLAB) that is able to make an expriment without such attaching equipments such as a helmet and lense. In this paper, to evaluate the level of road's safety, we grasp the meaning of the fluctuation of safety that drivers feel according to change of road geometric structure with methods of Driving Simulator and Eye Camera and investigate the relationship between road geometric structure and safety level. Through this process, we suggest the method to evaluate the road making drivers comfortable and pleasant from planning schemes.

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Analysis on sEMG Signals of Contents Using Finger Tapping Device (Finger Tapping 기기를 활용한 콘텐츠의 sEMG 신호 분석)

  • Han, Sang-bae;Byeon, Sang-kyu;Kim, Jae-hoon;Shin, Sung-Wook;Chung, Sung-taek
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.19 no.6
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    • pp.153-160
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    • 2019
  • In this paper, we would like to support anyone who can rehabilitate conveniently and happily by implementing rehabilitation device and game contents that can improve the motor ability of fingers. So we developed a Finger Tapping Device that can measure finger-regulation ability, accuracy, and agility and implemented tracking, visual response, finger-regulation on game contents by utilizing this device. The verification of usability was confirmed by analyzing sEMG signals during the execution of three types of game contents after attaching sEMG to the flexor digitorum poundus, which is most involved in finger movement. As a result of the experiment, activation of the flexor digitorum poundus was performed during execution of every game contents. Furthermore, we confirmed that there is a difference in agility by measuring the reaction time for each finger according to the visual response.

X-ray Image Denoising Agorithm Using Bilateral Weight (양방향 가중치를 이용한 x선 영상 잡음 제거 알고리즘)

  • Shin, Soo-Yeon;Suh, Jae-Won
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.21 no.1
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    • pp.137-143
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    • 2017
  • X-ray image is a widely used to medical examination, airport security and cargo inspection. However, X-ray images contain many visual noise, which interrupt image analysis. Consequently, it is primary importance to reduce noises of X-ray image. In this paper, we present a improved denoise technique for x-ray image using pixel value and range weights. First, we denoise a x-ray image using bilateral filter. Next, we detect a edge region of the original x-ray image. If a denoised pixel belongs to the edge region, we calculate weighting values of original x-ray image and denoised x-ray image in $3{\times}3$ neighboring pixels and compute the cost value to determine the boundary pixel value. Finally, the pixel value having minimum cost is determined as the pixel value of the denoised x-ray image. Simulation results show that the proposed algorithm achieves good performance in terns of PSNR comparison and subjective visual quality.

Dynamic Reconfiguration of Qis Visualization Spreadsheet (동적 재구성이 가능한 Qis Visualization Spreadsheet)

  • Jee, Sung-Hyun;Kwon, Young-Hee;Youn, Kil-Joong
    • Journal of the Institute of Electronics Engineers of Korea CI
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    • v.42 no.5
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    • pp.79-86
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    • 2005
  • The Qis visualizational spreadsheet environment is shown to be extremely effective in supporting the organized visualization of multi-dimensional data sets. The Qis consists of the reconfigurative 2D arrangement of spreadsheet elements at run time and each spreadsheet element has a novel framestack. As the feature, it supports 3D data structure of each element on the Qis. It enables the visualization spreadsheet to effectively manage, rapidly organize, and compactly encapsulate multi-dimensional data sets for visualization. Using several experiments with scientific users, the Qis has been demonstrated to be a highly interactive visual browsing tool for the analysis of multidimensional data, displaying 2D and 3D graphics, and rendering in each frame of the spreadsheet.

The Effects of MWM Taping and Diamond Taping on the Pain, Grip Strength and Functional Activity in Patients with Lateral Epicondylitis (멀리건 테이핑과 다이아몬드 테이핑이 외측상과염 환자의 통증, 악력, 기능수행능력에 미치는 영향)

  • Yang, Seong-Hwa;Park, Hyun-Sik;Sin, Young-Il
    • The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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    • v.19 no.2
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    • pp.47-54
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    • 2013
  • Background: Lateral epicondylitis is the most common complaint with complex etiological and pathophysiological factors on the lateral side of elbow. Taping techniques commonly used for lateral epicondylitis. The purpose of this study was to investigate the effects of mobilization with movement taping and diamond taping on the pain, grip strength and functional activity in patients with lateral epicondylitis Methods: Twenty patients with lateral epicondylitis (mobilization with movement taping group: n=10, diamond taping group: n=10) were recruited. They were evaluated pre-treatment, after 1weeks, and after 3weeks, using visual analog scale, pain free grip strength test, patient-rated tennis elbow evaluation. Results: Analysis showed statistcally significant improvement in all time in both groups. and The mean improvement in pre-1weeks visual analog scale was significantly greater in the Diamond taping group than that in the mobilization with movement taping group. and the mean improvement in pre-1weeks pain free grip strength test was significantly greater in the mobilization with movement taping than that in the diamond taping group. Conclusion: Taping technique to patients with lateral epicondylitis can help improve pain, grip strength, functional activity and initial taping technique can be selected depending on the patient's condition and the desired goal.

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The Visual Evaluation according to various Methods of Motif Presentation and the Value contrast between the Motif and Background -Floral Pattern- (모티프의 표현방법, 모티프와 배경과의 명도대비에 따른 시각적 평가 -꽃패턴을 중심으로-)

  • 장수경
    • Journal of the Korean Home Economics Association
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    • v.35 no.2
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    • pp.159-172
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    • 1997
  • The purpose of this study was to investigate visual evaluation according to various methods of motif presentation and the value contrast between the motif and background. The instruments developed for this purpose were two sets of stimuli and a response scale. the first set consisted of pattern stimuli. they were eight photographs of floral patterns constructed by using six different motif presentation methods and two different value contrasts. The second set had eight clothing stimuli, photographs of clothings with the above floral patterns. The 7-point sementic differential scale of 19 bipolar adjectives was used as the response scale. The data was analyzed by factor analysis, ANOVA and T-test. The major findings from this study were as follows; 1. Four factors emerged to account for the dimensional structure of the floral pattern image. These factors were attractiveness, tenderness, attention, and maturity. among them attractiveness and tenderness were the major dimensions 2. The patterns and the clothings had no significant difference from each other in terms of attractiveness and tenderness, but in terms of maturity and attention. The pattern presented a cute and sober image, but the clothing presented mature and gorgeous image. 3. methods of motif presentation had significant effects on all the factors. The pattern by shading method gave the most attractive and soft image, the one by line the most soberest, the one by area the most gorgeous, the one by collage the most unattractive, hardest, and cutest, and the one by mosaics the maturest. 4. The value contrast between the motif and background had no significant effects on attractiveness and maturity, but on tenderness and attention. The patterns with a high valued background presented a soft image, but the one with a low valued background a hard image. The patterns with a low valued area presented gorgeous image.

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Changes of Upper Trapezius Muscle Activity and EMG Gap After Transcutaneous Electrical Nerve Stimulation in Subjects With Myofascial Pain Syndrome (경피신경전기자극 후 상부 승모근 활성도와 EMG gap의 변화)

  • Koh, Eun-Kyung;Kwon, Oh-Yun;Yi, Chung-Hwi
    • Physical Therapy Korea
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    • v.10 no.1
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    • pp.37-50
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    • 2003
  • The purpose of this study was to compare visual analogue scale (VAS), pain threshold (PT), $%RMS_{RVC}$, and EMG gaps before and after applying transcutaneous electrical nerve stimulation (TENS) on the upper trapezius muscle at the patients with myofascial pain syndrome (MPS). The subjects were 4 men and 10 women composed of both the inpatients and outpatients who were diagnosed as MPS at Wonju Medical Center. VAS and PT measurements were performed to assess the subjective pain level. The reference voluntary contraction (RVC) test was performed for 15 seconds for normalization on the bilateral trapezius muscle using surface electromyography (sEMG). After 3-minute resting time, the EMG signal was recorded while performing a typing activity for 2 minutes and then TENS was applicated with a comfortable intensity for 10 minutes. The EMG activity of the upper trapezius muscle was recorded during typing for 2 minutes. The results of study were as follows: 1) VAS score was significantly decreased on the more painful side after treatment, however, it was not significantly different on the less painful side. 2) PT was increased after treatment on both sides, however, it was not significantly different between before and after the TENS application. 3) The EMG activity during typing was significantly decreased after treatment, and 4) The EMG gaps were significantly increased after TENS treatment compared to before it. Consequently, the study showed that TENS was effective in decreasing VAS, $%RMS_{RVC}$, and in increasing EMG gaps. The EMG gap analysis could be a useful method to measure pain in patients with MPS in the upper trapezius.

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Visual Evaluation and Preference in Men's Clothing Color according to Variation in Value and Chroma (남성 의복색의 명도 및 채도 변화에 따른 시각적 이미지 평가와 선호도 연구)

  • Lee, Myoung-Hee
    • Journal of the Korean Society of Costume
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    • v.61 no.3
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    • pp.51-62
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    • 2011
  • The purpose of this study was to examine the visual evaluation of image according to the style, hue, value, and chroma of the male clothing and the preference of image. A quasi-experimental method was used for this study. The first factorial design was the $2{\times}3{\times}2{\times}2$ (style of upper clothes ${\times}$ hue ${\times}$ chroma ${\times}$ color of trousers), and the second factorial design was the $2{\times}3{\times}2$ (style of upper clothes ${\times}$ value ${\times}$ color of trousers). The styles of upper clothes were a soutien collar casual jacket and a polo shirt. The subjects were 509 female college students living in Seoul. Factor analysis showed five image categories of men's clothing: initiative, dignity, politeness, activity, and mildness. Yellow was evaluated as having the highest initiative and activity. Blue was shown to have lower mildness than red and yellow. The high saturated chroma was perceived to be higher initiative and activity than low chroma. The shirts were evaluated higher in activity and mildness than the casual jackets were. The beige pants were perceived to be higher in dignity and mildness than the dark blue pants. The high chroma jackets were perceived to be higher in both initiative and activity than the low chroma jackets. The navy blue pants with the upper clothes in low chroma blue were perceived to be higher in politeness than with the upper clothes in low chroma red or yellow. The low value clothes were perceived to be higher in both initiative and dignity.

Effects of the BUDDEUMI Therapy on the Relief of Shoulder Pain among Middle Aged Women (중년여성의 견갑통 통증완화를 위한 부항과 뜸 겸용요법의 적용효과)

  • Kim, Yi-Soon;Kim, Kwuy-Bun;Kim, Gyeong-Cheol;Kim, Young-Hee
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.23 no.5
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    • pp.1172-1177
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    • 2009
  • This study is to determine the effects of BUDDEUMI(moxibustion and cupping a boli) therapy on the relief of shoulder pain among middle aged women. methods : A total of 39 middle aged women with shoulder pain are selected : 20 in the experimental group and 19 in the control group. The data was collected by using questionnaires. The BUDDEUMI(moxibustion and cupping a boli) therapy on the should and back was administered to the experimental group, and no treatment was given to the control group. All of the subjects were examined on a subjective symptom scale and on the grade of discomfort and pain in everyday life as developed by Japan's Industrial Fatigue Research Committee of the Industrial Hygienics Society(1988), Sohn, Mong Ho(1999), Visual Analogue Scale as developed by Cline (1992). SPSS/win 12.0 was used for Date analysis, General features demonstrated by frequency number and percentage. The effects of the BUDDEUMI(moxibustion and cupping a boli) therapy was analyzed by a t-test. The homogeneity testing revealed that all study variables are equally distributed between experimental and control groups. The hypothesis, 'the experimental group who received BUDDEUMI(moxibustion and cupping a boli) therapy will decrease in the grade of discomfort of shoulder', is supported. The hypothesis, 'the experimental group who received BUDDEUMI(moxibustion and cupping a boli) therapy will decrease in the Visual Analogue Scale is supported. Conclusion : As a result of this study, BUDDEUMI(moxibustion and cupping a boli) therapy will be able to be used as the self care therapy to improve the symptoms of middle aged women who has the shoulder pain.

A Study on Plan Structure Types and Characteristics of Wall Formation in Art Museum Exhibition Spaces

  • Lee, Jong-Sook
    • Architectural research
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    • v.13 no.3
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    • pp.3-10
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    • 2011
  • The Characteristics of space are determined by several factors; however, the element that determines the physical characteristic of floors, walls, and ceiling is the structure. This study constructs a wall to analyze the direct effect that the layout of an exhibition wall has on the element of the wall followed by the structural process and visibility of descriptive analysis and examples of art museums that the shift from a perceptional wall to an experiential wall affected circulation. For elements and formation methods of the wall, first, it is made up of open and closed type exhibition spaces, and it can give abundance in qualitative space rather than a quantitative aspect. Secondly, the directivity of space changes according to the development of the visible axis, thus, directly affects the change in visibility. Thirdly, the difference between spatial structure and visual structure is the difference between the visual axis and spatial structure. The wall formation type followed by the combination method, the simple visible structure, which is the type that possesses the simple combination (Room, Zone, Cluster), repeatedly uses the same size of units of space that is orderly and has few spatial axes and the classification of simple type and simple cluster type, which has few visible axes, also exists. Also, with the complex structure of the maze type it displays the reiterated form of the cluster, which is the space with disorderly combination and has much visible axes and spatial axes. Also, these can be divided into three types: 1) Maze Cluster Type, 2) Cross Road Type, and 3) Open Flexible Type. These wall types lead the various changes in circulation, and even each of the arrangement qualities of the exhibitions should be researched according to its exhibition place type.