• Title/Summary/Keyword: Visual Depth

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Study on Renovating Housings for the Disabled through Case Studies (개조 사례를 통한 신체장애인 주거공간 개조방안에 관한 연구)

  • Kim, Bong-Soon;Park, Mi-Young;Kim, Moon-Duck
    • Korean Institute of Interior Design Journal
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    • v.22 no.2
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    • pp.149-156
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    • 2013
  • Men should be able to do whatever they want to and want to safely protected at home which is special domain for them. The disabled live mentally uncomfortable lives at home which should be a place where they should be comfortable and convenient. Renovation projects started in Incheon since 2009 by commencing renovation projects for the disabled by the government and welfare centers. Since the project is a program supported by the government or welfare centers thus priority on renovation was decided and carried out by in-depth interview to decide areas to renovate because of limited budgets. This paper is aimed to propose plans for renovating homes according to priority for renovation for dwellers when renovating homes for the disabled with limited budgets. Renovating home for the disabled can be broadly divided into physical, environmental, esthetic renovations, and physical renovation is a basic renovation for daily lives without restrictions in living and include easy movements, accesses to each rooms and adequacy of movement, easily accesses related with easily accessible distance and height, safety to prevent accidents caused by physical inabilities. Environmental renovation is general supports becoming the base of daily living and include control for controlling lighting, heating, air quality for comfortable environments in living space and pleasantness to maintain bright and pleasant interior with sufficient light. Esthetic renovation includes expression of identity by expressing image of one self and visual effects or spatial consideration for hobbies to enjoy comfortable and rich lives.

A Study on Tactile Sensation Application for Computer Game and Virtual Reality (컴퓨터게임과 가상현실을 위한 촉각 응용에 관한 연구)

  • 이영재
    • Journal of Korea Multimedia Society
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    • v.5 no.6
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    • pp.646-654
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    • 2002
  • The human sense of touch provides us with an important source of information about our surroundings. Because of its unique position at interface between our bodies and the out world, touch sensation supplies sensory data which helps us manipulate and recognize objects and warn of harmful situation. But tactile sensation was recognized less important than visual sense and auditory sense but it plays an important immersing role in virtual reality and computer game. Tactile sensation can be used to influence to objects according to power and supplied sensory feedback to the player in a virtual environment. This paper investigated the characteristics of tactile sensation of human being and proposed method of sturdy using force sensing sensor, simple force modeling and data structure form for virtual reality and computer game. As a result, force distribution, depth, center point can be calculated using sensor output and this information is very effective to specific position for actions and reactions. This study can used as basic information for tactile sensation and it's application in computer game and virtual realty.

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New motion - induced- blindness (운동자극에 의해 유발된 정지자극의 의식에서의 소멸)

  • 이형철
    • Korean Journal of Cognitive Science
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    • v.14 no.4
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    • pp.9-19
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    • 2003
  • Bonneh, Cooperman and Sagi (2001) reported that when a global moving pattern was superimposed on high-contrast stationary stimuli, the latter disappeared and reappeared alternatively for periods of several seconds. They named this as motion-induced-blindness. In present research a rotating transparent cylinder composed of white dots was superimposed on a stationary green dots. When observers watched these stimuli wearing a red filter on his/her right eye, the stationary green dots disappeared or reappeared as did in Bonneh et al. The new MIB was observed only when the cylinder rotated and observers weared a red filter. As the luminance contrast of the green dots and that of white dots against the background reduced, and as the number of green dots and white dots decreased, the duration of MIB reduced. Also, the relative depth of the rotating cylinder and the stationary green dots affected the duration of MIB. These results imply that the new MIB is different from the MIB which was observed by Bonneh et al and that the new MIB cannot be explained by binocular rivalry. Further more, the results imply that the later stage of visual information processing is involved in the new MIB.

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An Algorithm for the Multi-view Image Improvement with the Resteicted Number of Images in Texture Extraction (텍스쳐 추출시 제한된 수의 참여 영상을 이용한 Multi-view 영상 개선 알고리듬)

  • 김도현;양영일
    • Journal of Korea Multimedia Society
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    • v.3 no.1
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    • pp.34-40
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    • 2000
  • '[n this paper, we propose an efficient multi-view image coding algorithm which finds the optimal texture from a restricted number of multi-view image. The X-Y plane of the normalized object space is divided into the triangular patches. The depth of each node is determined by appling a block based disparity compensation method. Thereafter the texture of each patch is extracted by appling an affine transformation based disparity compensation method to the multi-view images. We reduced the number of images needed to determine the texture compared to traditional methods which use all the multi-view image in the texture extraction. The experimental results show that the SNR of images encoded by the proposed algorithm is better than that of images encoded by the traditional method by the approximately 0.2dB for the test sets of multi -view image called dragon, santa, city and kid. Image data recovered after encoding by the proposed method show a better visual results than after using traditional method.

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A Study on System Development of School Health in Korea -Part II: Developmental Process and Foremost Tasks of School Health Education- (학교보건제도(學校保健制度) 개발(開發)에 관(關)한 연구 -제2부 학교보건교육의 발전과정과 향후 과제-)

  • Chung, Yeon-Kang;Chang, Chang-Gok;Park, In-Hwa;Shu, Sung-Jae
    • Journal of the Korean Society of School Health
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    • v.7 no.1
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    • pp.37-44
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    • 1994
  • This study is designed to shed light on the current status of school health education in Korea and identify its problems. The findings of this study among other things pointed out that health education should be awarded the status on an independent subject in a bid to activate school health education and cope with its problems. Thus for efforts focused on the needs for establishing health education as an independent course as well as for enhancing the awareness of its importance. At this stage further efforts are needed to develop in-depth discussions and add greater variety to the curriculum. Firstly efforts should be made to recognize the health status of students at all levels, i.d., from kindergarten through university. Particulary at this stage when the entire society is going through changes in the types of health problems and disease pattern, the outcome of analyses on the types of health problems and health-related behavior can be used as basic data for framing the contents of school health education. Secondly more active efforts are required to single out the contents of health education and develop health education curricula assessment based on the findings of surveys on that of health education needs. Thirdly the development of school health education curriculum should be accompanied by that of more effective educational methods and materials. In particular, further efforts should be made to develop educational methods designed to make wider use of audio-visual equipments or apply behavior modification techniques so that school health education will be adapted to changed educational environment and the characteristics of health education. Fourthly and most importantly the training and production competent health education teachers is needed. This should be preceded by the amendment of relevant laws and administrative systems.

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Meaning of Media Education for the Training of Broadcasting Human Resources: Focusing on the Employment of Human Resources by the Korean Major Broadcasts in Connection with Broadcasting Education in Universities (방송인력 양성을 위한 미디어 교육의 의미 고찰: 대학 방송영상 교육의 지상파 방송3사 인력 운용과의 연계를 중심으로)

  • Choi, Kyung-Jin
    • Korean journal of communication and information
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    • v.37
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    • pp.100-138
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    • 2007
  • The purpose of this paper is to consider how the Korean major broadcasts employs their broadcasting human resources and makes use of them in connection with broadcasting education as media education in universities. The problems deals with broadcasting education in universities, particularly with regard to the point of broadcasts view, with the training & reeducation systems and with the academic-industrial cooperation. By using depth interview with experts(directors of personnel management of the broadcasts), this paper explores meaning of media education for the training of broadcasting human resources. In the opinions of the responsible officers for personnel management, it distinctly exists different points of view between the related academic circle and the broadcasting on-site. The related academic circle criticizes the chronic invariability of broadcasts, and the broadcasts the impractical broadcasting education of the academic circle.

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From Theory to Implementation of a CPT-Based Probabilistic and Fuzzy Soil Classification

  • Tumay, Mehmet T.;Abu-Farsakh, Murad Y.;Zhang, Zhongjie
    • Proceedings of the Korean Geotechical Society Conference
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    • 2008.03a
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    • pp.1466-1483
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    • 2008
  • This paper discusses the development of an up-to-date computerized CPT (Cone Penetration Test) based soil engineering classification system to provide geotechnical engineers with a handy tool for their daily design activities. Five CPT soil engineering classification systems are incorporated in this effort. They include the probabilistic region estimation and fuzzy classification methods, both developed by Zhang and Tumay, the Schmertmann, the Douglas and Olsen, and the Robertson et al. methods. In the probabilistic region estimation method, a conformal transformation is used to determine the soil classification index, U, from CPT cone tip resistance and friction ratio. A statistical correlation is established between U and the compositional soil type given by the Unified Soil Classification System (USCS). The soil classification index, U, provides a soil profile over depth with the probability of belonging to different soil types, which more realistically and continuously reflects the in-situ soil characterization, which includes the spatial variation of soil types. The CPT fuzzy classification on the other hand emphasizes the certainty of soil behavior. The advantage of combining these two classification methods is realized through implementing them into visual basic software with three other CPT soil classification methods for friendly use by geotechnical engineers. Three sites in Louisiana were selected for this study. For each site, CPT tests and the corresponding soil boring results were correlated. The soil classification results obtained using the probabilistic region estimation and fuzzy classification methods are cross-correlated with conventional soil classification from borings logs and three other established CPT soil classification methods.

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Periodontal regeneration with nano-hyroxyapatite-coated silk scaffolds in dogs

  • Yang, Cheryl;Lee, Jung-Seok;Jung, Ui-Won;Seo, Young-Kwon;Park, Jung-Keug;Choi, Seong-Ho
    • Journal of Periodontal and Implant Science
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    • v.43 no.6
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    • pp.315-322
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    • 2013
  • Purpose: In this study, we investigated the effect of silk scaffolds on one-wall periodontal intrabony defects. We conjugated nano-hydroxyapatite (nHA) onto a silk scaffold and then seeded periodontal ligament cells (PDLCs) or dental pulp cells (DPCs) onto the scaffold. Methods: Five dogs were used in this study. Bilateral 4 mm${\times}$2 mm (depth${\times}$mesiodistal width), one-wall intrabony periodontal defects were surgically created on the distal side of the mandibular second premolar and the mesial side of the mandibular fourth premolar. In each dog, four of the defects were separately and randomly assigned to the following groups: the PDLCcultured scaffold transplantation group (PDLC group), the DPC-cultured scaffold transplantation group (DPC group), the normal saline-soaked scaffold transplantation group, and the control group. The animals were euthanized following an 8-week healing interval for clinical, scanning electron microscopy (SEM), and histologic evaluations. Results: There was no sign of inflammation or other clinical signs of postoperative complications. The examination of cellseeded constructs by SEM provided visual confirmation of the favorable characteristics of nHA-coated silk scaffolds for tissue engineering. The scaffolds exhibited a firm connective porous structure in cross section, and after PDLCs and DPCs were seeded onto the scaffolds and cultured for 3 weeks, the attachment of well-spread cells and the formation of extracellular matrix (ECM) were observed. The histologic analysis revealed that a well-maintained grafted volume was present at all experimental sites for 8 weeks. Small amounts of inflammatory cells were seen within the scaffolds. The PDLC and DPC groups did not have remarkably different histologic appearances. Conclusions: These observations indicate that nHA-coated silk scaffolds can be considered to be potentially useful biomaterials for periodontal regeneration.

Clinical evaluation of efficacy of transcortical anesthesia for the extraction of impacted mandibular third molars: a randomized controlled trial

  • Demir, Esin;Ataoglu, Hanife
    • Journal of Dental Anesthesia and Pain Medicine
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    • v.20 no.1
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    • pp.9-17
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    • 2020
  • Background: This study aimed to compare the pain levels during anesthesia and the efficacy of the QuickSleeper intraosseous (IO) injection system and conventional inferior alveolar nerve block (IANB) in impacted mandibular third molar surgery. Methods: This prospective randomized clinical trial included 30 patients (16 women, 14 men) with bilateral symmetrical impacted mandibular third molars. Thirty subjects randomly received either the IO injection or conventional IANB at two successive appointments. A split-mouth design was used in which each patient underwent treatment of a tooth with one of the techniques and treatment of the homologous contralateral tooth with the other technique. The subjects received 1.8 mL of 2% articaine. Subjects' demographic data, pain levels during anesthesia induction, tooth extractions, and mouth opening on postoperative first, third, and seventh days were recorded. Pain assessment ratings were recorded using the 100-mm visual analog scale. The latency and duration of the anesthetic effect, complications, and operation duration were also analyzed in this study. The duration of anesthetic effect was considered using an electric pulp test and by probing the soft tissue with an explorer. Results: Thirty patients aged between 18 and 47 years (mean age, 25 years) were included in this study. The IO injection was significantly less painful with lesser soft tissue numbness and quicker onset of anesthesia and lingual mucosa anesthesia with single needle penetration than conventional IANB. Moreover, 19 out of 30 patients (63%) preferred transcortical anesthesia. Mouth opening on postoperative first day was significantly better with intraosseous injection than with conventional IANB (P = 0.013). Conclusion: The IO anesthetic system is a good alternative to IANB for extraction of the third molar with less pain during anesthesia induction and sufficient depth of anesthesia for the surgical procedure.

The Domestic Trend of Chuna Treatments on Lumbar Spinal Disorder (요추부 질환에 적용하는 추나 치료에 대한 국내 연구 동향)

  • Choi, Hee-Seung;Choi, Young-Il;Son, Seol-Ki;Choi, Chul-Woo;Im, Han-Bit;Kim, Dong-Hwan;Jeong, Yeon-Jae
    • The Journal of Churna Manual Medicine for Spine and Nerves
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    • v.7 no.2
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    • pp.25-38
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    • 2012
  • Objectives : The present study examines the domestic trend of Chuna treatments on lumbar spinal disorder in Korea. Methods : We investigated the studies on Chuna treatments for lumbar spinal disorder via searching 10 Korean web databases. As a result, 63 research papers were found to be analyzed according to their published year, the titles of journals, the types of study, the techniques of Chuna, the instruments for assessment, the Chuna technique and the number of the treatment trials by the cases of lumbar spinal disorder and ethical approvals. Results : The number of the research papers published tends to increase every year. The studies on Chuna treatments were mainly published in The Journal of Korea CHUNA Manual Medicine for Spine & Nerves. The most frequently adopted technique of Chuna in the examined studies was Cox flexion & distraction technique. Visual analogue scale(VAS), oswestry disability questionnaire(ODI) were used as primary means of assessments. The ethical problems of the examined studies needed to be improved. Conclusion : Reviewing the domestic trend of studies on Chuna treatments for lumbar spinal disorder and examining the strong and weak points of those treatments are essential for the future studies. It is anticipated that this review benefits the future in-depth study on the treatments for Chuna in Korean medicine.

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