• Journal of Information Processing Systems
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• 제15권4호
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• pp.785-796
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• 2019

Due to the view point, illumination, personal gait and other background situation, person re-identification across cameras has been a challenging task in video surveillance area. In order to address the problem, a novel method called Joint Bayesian across different cameras for person re-identification (JBR) is proposed. Motivated by the superior measurement ability of Joint Bayesian, a set of Joint Bayesian matrices is obtained by learning with different camera pairs. With the global Joint Bayesian matrix, the proposed method combines the characteristics of multi-camera shooting and person re-identification. Then this method can improve the calculation precision of the similarity between two individuals by learning the transition between two cameras. For investigating the proposed method, it is implemented on two compare large-scale re-ID datasets, the Market-1501 and DukeMTMC-reID. The RANK-1 accuracy significantly increases about 3% and 4%, and the maximum a posterior (MAP) improves about 1% and 4%, respectively.

• 대한통합의학회지
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• 제11권3호
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• pp.35-47
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• 2023

Purpose : As the population aging deepens, the number of elderly people with arthritis is also continuously increasing. Accordingly, this study intended to identify the factors influencing the health-related quality of life (HINT-8) of the elderly with arthritis according to household type and provide baseline data for developing a measure to enhance the life quality of the elderly with arthritis. Methods : The factors influencing the health-related quality of life (HINT-8) of the elderly with arthritis were identified based on the raw data from the Korea national health and nutrition examination survey conducted in 2021. Data were analyzed with SPSS Statistics ver 25.0 for windows (IBM Corp), and the significance level (α) was set to .05. Statistical analysis was performed with t-test, ANOVA, multiple regression analysis, and post-hoc analysis with Duncan test. Results : The factors that influenced the health-related quality of life (HINT-8) of single-households were medical aid (β=-.17, p=.045), restriction of activity (β=-.17, p=.023), self-rated health status (β=.29, p<.001), and anxiety scale (β=-.36, p<.001). The factors that influenced the health-related quality of life (HINT-8) of multi-households were an age of 75 or over (β=-.14, p=.011), living in rural (β=-.14, p=.003), the outpatient department treatment experience (β=-.09, p=.047), self-rated health status (β=.26, p<.001), anxiety scale (β=-.29, p<.001), and stress (β=-.22, p<.001). Conclusion : Factors affecting the health-related quality of life (HINT-8) of the elderly with arthritis were found to be different between single-person households and multi-person household. Therefore, it is necessary to prepare measures to improve the quality of life of the elderly with arthritis by considering the factors influencing the health-related quality of life (HINT-8) of the elderly with arthritis according to the household type identified in this study.

• 대한토목학회논문집
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• 제33권6호
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• pp.2503-2508
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• 2013

최근 20~30년사이 수도권 1인가구의 비율은 크게 증가하였으며, 총 인구의 감소에도 불구하고 1인가구수는 지속적으로 증가할 것으로 예상된다. 그러나 국내 교통분야에서는 1인가구 증가가 교통분야에 미치는 연구가 미흡한 실정이다. 본 연구는 수도권 가구통행실태조사를 활용하여 가구 속성별로 가구규모에 따른 통행발생의 차이를 알아보기로 하였다. 연구방법으로는 수도권 가구통행실태조사 자료에서 가구 속성과 가구원 속성, 통행 속성에 대하여 가구규모별로 통행발생횟수(/일/인)을 산출하였다. 유의성검토를 거쳐 1인가구와 타 규모(2인 이상)가구와의 비교를 통하여 1인가구만의 통행발생 특성을 분석하였다. 연구 결과로는 전체적으로 1인가구의 통행발생은 타 규모 가구의 통행발생보다 높게 나타났으며, 주택종류, 거주형태, 지역, 통행수단 속성에서도 차별된 통행발생 특성을 보여주었다. 본 연구의 결과가 1인가구의 통행발생 특성을 반영한 통행발생모형 구축 등 교통정책개발에 이바지하길 기대하여본다.

• 한국멀티미디어학회논문지
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• 제24권5호
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• pp.659-666
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• 2021

With the continuous development of deep learning, human behavior recognition algorithms have achieved good results. However, in a multi-person recognition environment, the complex behavior environment poses a great challenge to the efficiency of recognition. To this end, this paper proposes a multi-person pose estimation model. First of all, the human detectors in the top-down framework mostly use the two-stage target detection model, which runs slow down. The single-stage YOLOv3 target detection model is used to effectively improve the running speed and the generalization of the model. Depth separable convolution, which further improves the speed of target detection and improves the model's ability to extract target proposed regions; Secondly, based on the feature pyramid network combined with context semantic information in the pose estimation model, the OHEM algorithm is used to solve difficult key point detection problems, and the accuracy of multi-person pose estimation is improved; Finally, the Euclidean distance is used to calculate the spatial distance between key points, to determine the similarity of postures in the frame, and to eliminate redundant postures.

• 제어로봇시스템학회논문지
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• 제22권1호
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• pp.66-73
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• 2016

An Inertial Measurement Unit (IMU)-based Attitude and Heading Reference System (AHRS) can calculate attitude and heading information with long-term accuracy and stability by combining gyro, accelerometer, and magnetic compass signals. Motivated by this characteristic of the AHRS, this paper presents a Motion-Tracking and Localization (MTL) method for a person or walking robot using multi-AHRSs. Five AHRSs are attached to the two calves, two thighs, and waist of a person/walking robot. Joints, links, and coordinate frames are defined on the body. The outputs of the AHRSs are integrated with link data. In addition, a supporting foot is distinguished from a moving foot. With this information, the locations of the joints on the local coordinate frame are calculated. The experimental results show that the presented MTL method can track the motion of and localize a person/walking robot with long-term accuracy in an infra-less environment.

• 한국콘텐츠학회논문지
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• 제18권12호
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• pp.272-280
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• 2018

본 연구는 고령장애인 실태와 생활만족도를 분석하여 생활만족도를 향상시키는 방안을 제시하는데 목적이 있다. 연구자료는 한국장애인고용공단에서 조사한 8차 장애인고용패널 자료를 활용하고, 연구대상은 1인 가구 126명, 다인가구 326명이다. 분석은 $x^2$, ANOVA, 로지스틱 회귀분석으로 SPSS 24.0 프로그램을 활용하였다. 연구결과 첫째, 연구대상자는 남성, 유배우자, 경증장애, 신체외부 장애, 비수급자, 미취업자가 많고, 생활만족도 수준은 3.27로 나타났다. 둘째, 고령장애인 1인가구는 다인가구에 비해 여성, 무배우자, 중증 장애, 장애수용이 낮은 경우, 전반적 건강상태가 좋지 않은 경우, 일상생활에서 도움이 필요하고, 차별경험이 많은 경우, 미취업, 낮은 월소득, 수급자, 주관적 소속계층이 낮은 것으로 나타났다. 셋째, 1인가구 고령장애인 생활만족도 영향 요인은 장애수용(p<.05), 전반적 건강상태(p<.05), 사회활동 참여도(p<.05), 종교생활(p<.05)이 유의미하게 나타났고, 다인가구 고령장애인 생활만족도 영향 요인은 장애수용(p<.001), 전반적 건강상태(p<.001), 주관적 소속계층(p<.05)이 유의미하게 나타났다. 결과를 바탕으로 고령장애인 생활만족도를 향상시키기 위한 방안을 제시하였다.

• 지역연구
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• 제40권1호
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• pp.69-88
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• 2024

본 연구는 청년 1인가구와 노년 1인 가구를 중심으로 지역환경이 스트레스에 미치는 영향을 비교분석하는 것을 목적으로 한다. 분석을 위하여 본 연구는 '2019년 지역사회건강조사'를 활용하였으며 지역환경을 사회적 환경과 물리적 환경으로 구분하여 이항 로지스틱 회귀분석을 실시하였다. 분석결과는 다음과 같다. 첫째, 1인가구와 다인가구 간 스트레스에 영향을 미치는 환경요인에는 차이가 있으며, 이러한 차이는 노년층에 비해 청년층에서 상대적으로 크게 나타났다. 둘째, 청년 1인가구의 스트레스는 주로 물리적 환경요인의 영향을 받았으며, 노년 1인가구의 스트레스는 물리적 환경요인 뿐만 아니라 사회적 환경요인으로부터 영향을 받는 것으로 나타났다. 이러한 결과를 바탕으로 1인가구의 정신건강 증진을 위한 지원정책을 실시함에 있어 연령별 특성과 고려한 지역수준의 지원이 제공되어야 함을 제시한다.

• 대한지역사회영양학회지
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• 제24권6호
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• pp.476-484
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• 2019

Objectives: The rise of one-person households may have consequences for food consumption patterns, and eating habits. This study investigated the home meal replacement (HMR) use and eating habits among adults in their 20s-30s living in one-person households. Methods: A total of 247 adults aged 26-39 years participated in this study. The subjects were divided into three group according to the household type; one-person households (n=80), two-person households (n=49), and multi-family (three and more members) households (n=118). Their use of HMRs (classified as ready-to-eat, ready-to-cook, and fresh convenience foods) and their eating habits were all compared. Results: The mean age of the subjects was 30.5 years, 47.8% were male, and there was no significant difference in age, gender, occupation, and monthly income according to the type of household. The intake frequency of total HMR and ready-to-eat foods was significantly higher in one-person households among the three groups. People in one-person households consumed more HMRs alone, and spent more money to buy HMRs. Undesirable dietary habit scores like unbalanced eating (p<0.05) and eating salty foods (p<0.05) were significantly higher in the one-person households. Among the total subjects, the unbalanced eating scores showed a significant positive correlation with the intake frequency of ready-to-eat foods, while the unbalanced eating scores showed negative correlation with the preference of fresh convenience foods. The scores for eating salty foods showed a significant positive correlation with the intake frequency and preference of ready-to-eat foods and ready-to-cook foods, while there was negative correlation with the intake frequency and preference of fresh convenience foods. Conclusions: Adults in their 20s-30s in one-person households consumed more ready-to-eat foods than those in multi-family households. In addition, people with one-person households had more unbalanced diets and ate more salty foods, and these undesirable eating habits showed a significant positive correlation with the use of ready-to-eat or ready-to-cook foods. These results should be addressed for producing healthier ready-to-eat/ready-to-cook foods and implementing nutrition education for making healthy food choices of one-person households, which are steadily increasing.

• 디지털융복합연구
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• 제17권7호
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• pp.387-393
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• 2019

본 연구는 장애노인 고용특성을 살펴보고 취업 영향요인을 파악하는데 목적이 있다. 분석자료는 한국장애인고용공단의 2차웨이브 1차 장애인 고용패널조사 자료를 활용하였다. 대상 장애노인은 452명이다. 통계분석은 기술통계, 카이스퀘어, 로지스틱 회귀분석을 실시하였다. 연구결과 첫째, 장애노인 취업집단은 미취업집단에 비해 경증장애, 건강상태가 좋은 경우, 만성질환이 없는 경우, 자격증이 있는 경우, 공공취업서비스 경험이 없는 경우, 유배우자인 경우, 비수급자인 경우, 가구소득이 높은 경우가 많았다. 둘째, 장애노인 취업에 영향을 미치는 공통 요인은 공공취업서비스 경험(p<.01), 가구소득(p<.01)이고, 다인가구 장애노인 취업 영향요인은 장애수용(p<.05), 1인가구 장애노인 취업 영향요인은 기초생활보장수급(p<.05)으로 확인되었다. 연구결과를 바탕으로 장애노인의 취업 지원방안을 제시하였다.

• 한국유기농업학회지
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• 제30권1호
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• pp.1-20
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• 2022

With the recent rapid increase in single-person households, food companies are releasing small packaging and small-capacity products regardless of product line such as beverages, fresh foods, and home snacks, and food consumption patterns are also changing. Meanwhile, as a series of accidents related to food safety occurred during cost-effective consumption pursuing price-performance, more consumers wanted to choose products that have been proven safe even with higher money due to food safety anxiety. Considering the concept of 'safety' of food, this study by using the 'ordered probit model' empirically investigated whether there is a difference in the degree of preference for safety in food consumption behavior between single-person and multi-person households. Summarizing the results, it was found that women rather than men, and elderly households among young and single-person households had a higher demand for food safety. The results of marginal effects considering food safety variables show that respondents with low frequency of delivery and take-out use are considering food safety more, and that single-person households are considering safety more than multi-person households. In the future, the population structure of Korea will continue to increase in single-person and elderly households, and women's economic activities will also continue to increase. Therefore, the growing home convenience food market needs marketing strategies to secure and emphasize food safety, such as sterilizing treatment technology for hygiene and safe container development from environmental hormones, and needs a lot of support and attention to meet changes in food culture trends and demographic structure.