• 한국통신학회논문지
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• 제26권11A호
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• pp.1938-1945
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• 2001

본 논문에서는 입력된 2차원 정지영상에 차등적 이동기법을 적용한 스테레오스코픽 3차원 입체영상 변환 기법을 제안하였다. 즉. 입력된 2차원 영상에서 시차 및 폐색 정보를 이용하여 상대적인 거리 정보를 예측하고, 예측된 정보를 바탕으로 영상 객체들을 명암 레벨에 따라 분할한 다음, 분할된 각 영상은 수평 시차에 따라 차등적으로 영역을 이동시킴으로써 최적의 입체감을 갖는 스테레오 3 타원 입체 영상을 구현하였다. 그리고, 입력 영상과 재구성된 영상간의 PSNR 비교실험 결과 시차에서 약 1.6dB정도 향상됨을 확인하였고, 상용 스테레오 뷰어를 통한 실험결과에서는 4∼5 픽셀 범위의 영역이동으로 재구성된 스테레오 영상들에서 가장 높은 입체감을 보이는 것을 확 인하였다.

• Nutrition Research and Practice
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• 제14권6호
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• pp.679-690
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• 2020

BACKGROUND/OBJECTIVES: Concerns about regional disparities in heathy eating and nutritional status among South Korean adults are increasing. This study aims to identify the magnitude of regional disparities in diet and nutritional status among Korean adults who completed the 2017 Korea National Health and Nutrition Examination Survey (KNHANES). SUBJECTS/METHODS: The participants were a nationally representative sample of Korean adults aged 19 years and older from the 2017 KNHANES (n = 6,126). We employed the svy commands in STATA to accommodate the complex survey design. The relative concentration index (RCI), absolute concentration index (ACI) and index of disparity were used to measure regional nutritional inequalities. RESULTS: Overweight and obese adults were more prevalent among the poor than among the rich in urban areas (RCI = -0.041; P < 0.05), while overweight and obese adults were more prevalent among the rich than among the poor in rural areas of South Korea (RCI = 0.084; P < 0.05). Economic inequality in fruit and vegetable intake ≥ 500 g per day was greater in rural areas than in urban areas in both relative size (RCI = 0.228 vs. 0.091, difference in equality = 0.137; P < 0.05) and absolute size (ACI = 0.055 vs. 0.023, difference in equality = 0.032; P < 0.05). CONCLUSIONS: This study provides useful information identifying opposite directions in the relative concentration curves between urban and rural areas. Adult overweight/obesity was more prevalent among the poor in urban areas, while adult overweight/obesity was more prevalent among the rich in rural areas. Public health nutrition systems should be implemented to identify nutritional inequalities that should be targeted across regions in South Korea.

• 한국통신학회논문지
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• 제29권1C호
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• pp.83-91
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• 2004

에피폴라 Rectification은 서로 다른 시점에서 얻은 두 영상에 대해 각 영상의 에피폴을 미리 정해진 점으로 옮기는 호모그래피를 적용함으로써 두 영상의 에피폴라 지오메트리를 동일한 기준 평면으로 변환하여 에피폴라 라인을 수평 방향으로 정렬시키는 과정이다. 이때 호모그래피에 의해 변환된 영상 사이에서도 에피폴라 제약조건이 성립해야 하며, 이를 만족시키는 호모그래피가 여러 개 존재하므로 제약조건을 추가하여 응용에 적합한 호모그래피를 구하게 된다. Rectification 결과 두 영상은 스테레오 영상화되어 쉽게 변위값을 구할 수 있으므로 영상 내객체의 3차원 정보를 추정하여 영상분할에 활용할 수 있다. 본 논문에서는 객체분할에 적용할 수 있는 Rectification 방법을 제안하고 이 결과를 객체분할에 적용하였다. 객체분할을 위해 색상정보와 상대적인 변위값의 연속성을 동시에 이용하면 단일 객체가 색상에 의해 분할되거나 혹은 색상이 비슷하여 다른 객체가 병합되는 문제를 보완할 수 있다. 실험을 통해 Rectification 결과영상으로부터 획득한 단일 객체의 변위값이 연속성을 갖음을 확인하였고 이를 통해 제안하는 Rectification 방법이 객체분할에 적합함을 보였다.

• Asian Pacific Journal of Cancer Prevention
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• 제15권2호
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• pp.623-627
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• 2014

Background: Esophagus cancer (EC) is among the five most common cancers in both sexes in Iran, with an incidence rate well above world average. Social rank (SR) of individuals and regions are well-known independent predictors of EC incidence. The aim of current study was to assess gender and social disparities in EC incidence across Iran's provinces through 2003-2009. Materials and Methods: Data on distribution of population at province level were obtained from the Statistical Centre of Iran. Age-standardized incidence rates of EC were gathered from the National Cancer Registry. The Human Development Index (HDI) was used to assess the province social rank. Rate ratios and Kunst and Mackenbach relative indices of inequality ($RII_{KM}$) were used to assess gender and social inequalities, respectively. Annual percentage change (APC) was calculated using joinpoint regression. Results: EC incidence rate increased 4.6% and 6.5% per year among females and males, respectively. There were no gender disparities in EC incidence over the study period. There were substantial social disparities in favor of better-off provinces in Iran. These social disparities were generally the same between males and females and were stable over the study period. Conclusions: The results showed an inverse association between the provinces' social rank and EC incidence rate in Iran. In addition, I found that, in contrast with international trends, women are at the same risk of EC as men in Iran. Further investigations are needed to explain these disparities in EC incidence across the provinces.

• 가정과삶의질연구
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• 제25권2호
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• pp.37-46
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• 2007

This study aims to explore the variable factors by which fathers affect nursing practices. for this study 544 married couples were interviewed, which resulted in the following conclusions. First, wives have higher fairness than husbands in sharing their parental roles. Second, in some couples, there was a difference seen in the expectations of each parents nursing capability, but rarely were differences in real nursing practices actually observed. Third, all couples interviewed showed some disparity between their expectations of parental nursing capability and their real nursing practices, where the expectations for nursing capability were higher than the real nursing practices. Fourth, higher expectations for nursing capabilities from fathers result in them having better parental roles. Fifth, there is no correlation between parental nursing practices and social demographic variables. Lastly, the impacts on the parental nursing practices are ranked by relative importance as parental nursing capability, the wife's expectation for parental nursing capability and so on.

• 전자공학회논문지
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• 제54권4호
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• pp.115-121
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• 2017

본 논문에서는 실제 공장환경에서 상용화되고 있는 AGV 시스템의 효과적이고 지능적인 경로설정을 위한 스테레오 카메라 시스템 기반의 지능형 시각 시스템을 제안하였다. 즉, 평행식 스테레오 카메라를 이용하여 좌, 우 입력 영상간의 시차지도와 깊이정보를 검출하고, AGV 시스템과 장애물간의 거리와 위치좌표인 2차원 경로좌표를 산출하여 장애물과 다른 물체들과의 상대 거리를 산출하였다. 산출된 2차원 경로좌표를 토대로 AGV 시스템의 효과적이고 지능적인 경로설정에 따라 자율적으로 주행하게 된다. 실 시간적으로 입력되는 스테레오 영상을 사용하여 실험한 결과 AGV 시스템과 전방에 존재하는 장애물까지의 거리 오차가 평균 2% 이하로 유지됨으로써 AGV 시스템의 실제 상용화 가능성을 제시하였다.

• 한국정보교육학회:학술대회논문집
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• 한국정보교육학회 2010년도 하계학술대회
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• pp.135-142
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• 2010

지난 수십년 동안 이공계 전공자에게 요구되는 역량의 범위가 다양화되었다. 이공계 인재가 직무 현장에서 성공을 거두려면, 전공에 대한 지식뿐 아니라, 경영, 경제, 법제도 등 사회적 맥락의 이해가 견고해야 하는 시대다. 이러한 맥락에서 본 연구에서는 국내 145개 기업을 대상으로 이공계 전공자에게 요구되는 역량인자를 수집, 성향, 기술, 지식의 범주로 분류하고, 그 상대적 중요성을 도출하였다. 이를 바탕으로 전국 182개 4년제 대학의 융합교육 현황을 조사하여 그 격차를 분석하였다. 뿐만 아니라, 융합교육의 지역적 격차 및 교육기관 간 질적 격차를 분석하여 시사점을 제시하였다.

• 말소리와 음성과학
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• 제3권2호
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• pp.37-52
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• 2011

This study investigates patterns of the alignment of the accentual peaks in bisyllabic words of the CVNCV, CVNV, and CVNNV structures in North Kyungsang Korean. Based on the tonal alignment, patterns of the F0 pitch excursion are discussed relative to one another. Issues are addressed concerning how the tonal targets are aligned, and how the tonal specifications of nasals in postvocalic, intervocalic, and prevocalic environments are supplied in the LH, HL, and HH classes. Tonal specification of nasals in various environments is accounted for by extension of the L target, displacement of the pitch peak, and interpolation between two tonal targets, depending on the tonal class. The results in this study provide preliminary evidence that the categorical alignment of the tonal targets is implemented by simply checking the presence or absence of a nasal before or after the nucleus vowel on the segmental string, without reference to the constituency of the nasal in the syllable structure. However, the prosodic structure has a key role to play in explaining speaker-dependent variations in the tonal alignment. Sensitivity to tautosyllabicity has an effect on the shape of the F0 contour, and disparity in the patterns of the pitch excursion is represented as a function of syllable structure correlated with segmental composition of the nasal.

• Asian Pacific Journal of Cancer Prevention
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• 제13권7호
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• pp.3077-3082
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• 2012

Aim: The incidence of biliary tract cancer (BTC) is many-fold higher for American Indians (AI) relative to non-Hispanic whites (NHW). Neither gallstones nor genetics can account for this difference. There is speculation that certain fatty acids in bile may play a role in preventing BTC. Since diet may influence composition of bile, we compared the dietary intakes of urban AI and NHW adult women in New Mexico. Methods: Design, a cross-sectional study of the diets of lactating AI and NHW women was conducted. Setting, the University of New Mexico Hospital. Participants, healthy lactating women 18 to 39 years of age were recruited. Main outcome measures, a three-day diet record for each participant was analyzed. Results: The AI women consumed less calcium (p = 0.04) and significantly less short and intermediate chain-length fatty acids (C4-C12), but nearly twice as much proinflammatory arachidonic acid as the NHWs (p <0.01). The intake of dairy products by AI women was less than NHW women (p = 0.01) while the intake of processed meat products was higher (p <0.01). Conclusion: Dietary factors may account for the difference in the risk of BTC between AI and NHW women.

• 한국컴퓨터정보학회논문지
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• 제22권10호
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• pp.145-150
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• 2017

This study aims to analyze panel data using OECD Health data of 34 years to examine how significant the inequality of income is to the inequality of health. The data was from OECD's pooled Health data of 32 countries from 1980 to 2013. The process of determining analysis model was as follows; First, through the descriptive statistics, we examined averages and standard deviation of variables. Second, Lagrange multiplier test has done. Third, through the F-test, we compared Least squares method and Fixed effect model. Lastly, by Hausman test, we determined proper model and examined effective factor using the model. As a result, rather than Pooled OLS Model, Fixed Effect Model was shown as effective in order to consider the characteristics of individual in the panel. The results are as follows: First, as relative poverty rate(${\beta}=-19.264$, p<.01) grows, people's life expectancy decreases. Second, as the rate of smoking(${\beta}=-.125$, p<.05) and the rate of unemployment (${\beta}=-.081$, p<.01) grows, people's life expectancy decreases. Third, as health expenditure(${\beta}=.414$, p<.01) shares more amount of GDP and as the number of hospital beds(${\beta}=-.190$, p<.05) grows, people's life expectancy increases.