• 한국방송∙미디어공학회:학술대회논문집
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• 한국방송공학회 2010년도 추계학술대회
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• pp.4-7
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• 2010

3D 콘텐츠에 대한 관심이 증가함에 따라 3D 시청 및 제작에 대한 가이드라인의 필요성도 함께 증가하고 있다. 3D 안정 시청 가이드 라인은 3D 시청으로 인한 시청자의 시각적 불쾌감이나 피로감을 방지하는데 목적을 두고 있으며, 최근 일본의 3DC에서는 과도한 수렴-조절 불일치를 방지하기 위해 양안 시차 $1^{\circ}$를 쾌적 시차 범위로 권고하고 있다. 하지만 이 쾌적 시차는 절대적인 수치가 아니며, 콘텐츠의 특성 및 시청 조건에 따라 변하는 것으로 추정된다. 본 논문에서는 쾌적 시차를 갖는 3D 영상 콘텐츠에서 객체의 모션으로 인해 양안시차가 시공간적으로 변할 때, 야기되는 시각적 불편함의 변화에 대하여 관찰한다. 특히, 깊이 방향 모션 및 수평 방향 모션에서 객체의 속도 변화에 대한 시각적 피로감의 정도를 주관적 평가를 통하여 측정한다.

• 한국인공지능학회지
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• 제5권2호
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• pp.1-14
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• 2017

This research proposes a method to provide visually impaired persons with better medical services and to mitigate their difficulties in taking medicines in their daily lives. Normally, pharmaceutical information are distributed in a form of printed materials, but it is not accessible by those who are visually impaired. Since persons who are visually impaired by accidents or diseases are required to take more types of medicines compared to other handicapped persons, and thus it is an important matter to let them have appropriate medicines at the right time. Although there are several web sites which are run by the Ministry of Health and Welfare providing pharmaceutic information, the information on those web sites are duplicated and some of the menus are similar, and thus giving users difficulties and discomfort in finding appropriate pharmaceutical information. Since ontology can define and describe the resource in an information system more clearly, in this research, an ontology consists of pharmaceutical information and knowledge on medicines is constructed to give patients more precise information more efficiently. Also, a service in which users can have voice guidance on pharmaceutical information retrieve from the ontology-based information system by contacting RFID sticker on the medicine to the reader.

• 한국방송∙미디어공학회:학술대회논문집
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• 한국방송공학회 2013년도 하계학술대회
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• pp.160-162
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• 2013

본 논문에서는 스테레오스코픽 디스플레이에 사용되는 스테레오 영상의 피로도를 분석하여 스테레오 영상의 시청 및 제작에 응용될 수 있는 시스템을 제안한다. 스테레오 영상의 피로도는 스테레오 영상의 시청 및 제작 시 영상의 품질을 향상시키기 위해 고려해야 할 가장 중요한 요소이나, 현재 이에 관한 국제 표준이 정해지지 않아 디스플레이 및 스테레오 영상 제작자마다 다른 기준으로 피로도를 분석하고 있다. 따라서, 본 논문에서는 시청자의 신체적 특성, 디스플레이 장치의 크기, 시청거리, 영상의 특성 등 시청자의 피로도에 영향을 미치는 모든 요소를 종합적으로 고려한 실용적인 피로도 분석 시스템을 제안한다. 제안하는 피로도 분석 시스템은 The zone of comfortness 와 peak signal to noise ratio (PSNR) estimation 기술을 응용하여 영상의 시차(disparity), PSNR, 디스플레이 크기, 시청거리, 시청자의 양안 거리로부터 수렴-조절 불일치 (vergenceaccommodation conflict)와 양안 입사 자극 불일치 정도를 추정해 스테레오 영상의 피로도를 계산한다. 제안하는 시스템을 통하여 스테레오스코픽 디스플레이 장치에서 영상과 시청자 특성을 고려한 최적의 시청환경을 시청자에게 제안할 수 있으며, 스테레오 영상 제작에 있어 목표 시청 환경에 대해 피로도를 최소화할 수 있는 영상의 제작 등의 응용이 가능하다.

• 척추신경추나의학회지
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• 제4권2호
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• pp.1-12
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• 2009

Objectives : The purpose of this study was to investigate the relationship between pain and psychological state in female office workers with neck pain. Methods : Experimental group of 31 healthy subjects complained of neck and arm discomfort related to computer use which lasted more than 3 months in the past year and was present in the past 7 days as well as on the day of test. Outcomes were assessed by meridian-electromyography(MEMG), Neck Disability Index(NDI), Visual Analog Scale(VAS), Beck Depression Inventory(BDI), Stress Reaction Inventory(SRI), Holmes & Rahe Social Readjustment Rating Scale(SRRS). Results : The NDI score and BDI score had a correlationship(r=0.48), and the NDI score and SRI score also had a correlationship(r=0.48), significantly. The NDI score and contraction power of upper trapezius by MEMG had a correlationship significantly, but with the other muscles the NDI score didn't have correlationships. The NDI score and the SRI score were significantly higher in depression group(BDI score ${\circ}{\surd}$14). The contraction power of trapezius by MEMG was significantly lower in depression group. Conclusions : The results suggest that mental stress can be a major risk factor of neck pain in female office workers.

• 한국가구학회지
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• 제26권4호
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• pp.328-333
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• 2015

The museum is a important place to inform the value of various antiquities and relics. The museum, founded in domestic, were increased 90% in 2013 compared to 2006, and total number of including private museums were increased more than three times over the past decade. There are installing a variety of illumination and air-conditioning system, such as the spot lighting of exhibition explanation. But the exhibition explanation should not happen to visual perception disabilities by lighting. According to ICOM (International Council of Museum), it is stipulating that the museum should not to occur glare. However, we confirmed some occurred the glare and it was lack of previous studies about prevention plan. In this study, we verified occurrence of the glare by illumination angles and visitor's eye-level. The luminance values were determined by using DSLR camera and illuminometer. As a result, when illumination angle is 90 degree, the glare did not occurred by the luminance value ratio of over 0.167 regardless of eye-level. By contrast, the angle 30 degree was appeared glare with all level. And this study was compared luminance values that obtained through experiment and surveying.

• 동의생리병리학회지
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• 제30권6호
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• pp.474-479
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• 2016

This case study reports patients suffering from migraine and vertigo had treated with Samul-tang plus Yijin-tang Gamibang. Two patients had taken Samul-tang and Yijin-tang Gamibang three times a day during hospitalization in oriental hospital. One patient had been hospitalized for 2 weeks and other had been for 3weeks. We control dose of added herbs according to other symptoms like dyspepsia, sleep discomfort, flushing, heating sense and diarrhea for each patients. We measure migraine by migraine disability assessment (MIDAS) and dizziness by korean dizziness handicap inventory (KDHI). Also we measure overall improvement with Visual Analogue Scale(VAS). The main symptoms had been steadily decreased to VAS2. Patient complaing of dyspepsia, heating sense, flushing had been improved with reduction of dyspepsia and patient with diarrhea, abdominal discomofort had been improved following reduction of diarrhea. Two patients didn't agree with study because this paper was written following retrospective study but patients claimed no side effect. Samul-tang plus Yijin-tang Gamibang may be considered as a treatment of migrainous vertigo with digestive problems.

• 대한한의학회지
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• 제23권4호
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• pp.73-90
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• 2002

Objectives: This study investigated significant factors that influence functional evaluation of stroke so as to be a fundamental data for estimating prognosis of stroke patients. Methods: 204 patients were studied within 7 days of admission, after the diagnosis of stroke through brain CT scan, brain MRI scan and clinical observations. They were hospitalized in the oriental medical hospital of Dongeui University from February to July in 2001. They were examined at the early stage of onset, after 2 weeks, 4 weeks and 6 weeks, and measured for average mark and the degree of improvement by using the Activity Index. Results: Ischemic stroke, past history of stroke, hypertension, diabetes mellitus, risk factor of obesity, non-professional emergency treatment and hospitalizing time after 1 day from onset, high blood pressure, tachycardia pulse and high blood sugar in abnormal vital sign in acute stage, conscious, cognitive or communication disorder, motor aphasia, dysphagia, constipation for more than 3 days, urinary incontinence, visual field defect, insomnia, and chest discomfort in early stage of onset had a negative influence on functional evaluation. Conclusions: Type of stroke, past history, risk factors, emergency treatment and hospitalizing time after onset, abnormal vital sign and intercurrent symptoms in Acute stage were relevant factors in predicting functional evaluation of stroke.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제37권
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• pp.5.1-5.4
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• 2015

Dry eye syndrome is a relatively common disease of the tears and ocular surfaces that results in discomfort, visual disturbance, and tear film instability with possible damage to the ocular surfaces. Microvascular submandibular gland (SMG) transfer offers a surgical alternative for a permanent autologous substitution of tears using the basal secretion of a transplanted SMG. Long-term follow-up reveals that this technique is a lasting and effective solution for patients with severe dry eye syndrome. The uncomfortable symptoms were relieved, and the frequency of use of pharmaceutical tear substitutes was reduced. Objective examination showed significant improvement in tear film and some features of ocular surface such as breakup time of tear film and corneal staining. Patients may suffer from obstruction of Wharton's duct or epiphora after surgery. Activation of secretion-related receptors could improve the early hypofunction of the denervated SMG and prevent the duct obstruction. Reduction surgery, partial SMG transplantation, uses of atropine gel or Botulinum toxin A could be the choices of treatment for epiphora.

• 대한한방내과학회지
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• 제23권1호
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• pp.133-140
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• 2002

Objective : This study was designed to report the clinical effects of Cheonggan-soyosan-gamibang on patients who have suffered from UL-symptom(鬱症). Method : Patients complained of a headache, dizziness, chest discomfort, burning feeling, indigestion. Anorexia, insomnia, and fatigue, etc. We concluded that these symptoms are UL-symptoms(鬱症). Therefore, we treated patients with oriental medicine, especially Cheonggan-soyosan-gamibang, and found that those symptoms and signs were improved by VAS, which is visual analogue scale. Result : After patients were treated with Cheonggan-soyosan-gamibang, symptoms and signs were improved by VAS. Conclusion : Through this study, Cheonggan-soyosan-gamibang on patients who have suffered from UL-symptoms(鬱症), proved to be effective.

• 동의신경정신과학회지
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• 제19권2호
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• pp.279-288
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• 2008

In this case, a 33 year-old female patient had a chronic headache with Panic disorder, and accompanied gastroenteric troubles(vomiting, nausea, dyspepsia and abdominal discomfort), for fifteen years. It may be the symptoms of Phlegm-syncope headache, and we treated this disease with oriental medical treatment, including the Banhabaekchulcheonma-tang, Breathing retraining and Cognitive retructuring. The effects of treatment were measured by were using BPI(Brief Pain Inventory), VAS(Visual analog scale). In Conclusion, Chronic headache with panic disorder was improved by our treatment.