• 제목/요약/키워드: depth perception

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비대면 근무에 대한 인식 비교 후속 연구 : 근로자와 관리자의 상호지향성 (A Follow-up Study of Views on Contactless Work : Workers' and Managers' Coorientation)

  • 권호중;민대환
    • 한국IT서비스학회지
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    • 제20권3호
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    • pp.27-40
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    • 2021
  • There have been a series of mixed reviews on the 'untact work' which was implemented for the safety of the organizational members from Covid-19. This study reports a follow-up study with a quantitative approach to issues identified by in-depth interviews with workers and managers who have experiences in work from home. To compare the views of workers and managers on untact work, 264 workers and 141 managers were surveyed. An analysis of agreement, congruency, and accuracy on the basis of the co-orientation model shows that workers are more positive about the untact work than managers and that managers are found to have a negative perception on untact work. This seems to be a burden on workers. More specifically, managers and workers show significant perception gaps on the issues of unfair evaluation and work-life balance. The results imply that organizations need to make efforts to minimize the perception gaps between workers and managers. This would bring about benefits from untact work.

중등학교 기술 수업과 기술 교사에 대한 대학 신입생의 인식 (First-year College Students' Perception toward Their Secondary School Technology Classrooms and Teachers)

  • 권혁수;모주순
    • 대한공업교육학회지
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    • 제39권2호
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    • pp.37-57
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    • 2014
  • 이 연구는 중 고등학교 기술교육 현장의 모습을 그리기 위해 최근 중 고등학교에서 기술교육을 직접 받았던 대학생들의 기술교육에 대한 인식을 조사하였다. 이 연구의 목적을 달성하기 위하여 기술수업에 대한 설문지와 심층 면담을 사용하였다. 기술수업에 대한 설문지 참가자는 2013년 입학한 신입생을 대상으로 사범대학생 10개 학과의 224명과 비 사범대학 9개 학과의 203명을 포함한 427명으로 2013년 3월부터 11월까지 실시하였다. 설문지의 내용은 중 고등학교에서의 기술수업과 교사에 대한 선호도, 기술수업에서의 학습경험, 기술교사에 대한 생각, 그리고 기술교육의 개선방향으로 구성되었고 5점 Likert 척도와 개방형 질문으로 조사하였다. 설문조사를 마친 후 개인 면담 연구 참가 중 희망자 22명 전원을 개별 면담하였다. 수집된 자료를 기반으로 기술통계와 주제 분석이 이루어졌으며 그 결과는 다음과 같다. 이 연구의 결과 최근 기술교육을 받은 대학 신입생들의 기술수업에 대한 경험은 수업 내용 또는 실습 내용으로 표현되고(54.4%), 부정적인 인식(29.1%)이 긍정적인 인식(16.5%)보다 높게 나타났다. 기술수업에 대한 인식은 주로 수업 내용 외 수업방법과 그들의 흥미의 주제로 표현되었다. 기술교사에 관한 인식은 보통 수준의 선호도를 보였고 교사의 수업 방법, 교사의 태도 또는 성격, 과목에 대한 흥미의 주제로 표현되었다. 이 연구의 참가자들이 가장 많이 경험한 기술수업에서의 수업방법은 강의식 수업(60.48%)이고 문제해결 또는 협동학습은 19.31%였다. 기술교육의 인식 향상과 발전을 위해서 가장 먼저 기술수업방법의 변화를 지적하였고, 학습 환경과 교육과정의 개선, 학습내용에 대한 변화가 필요하다고 제안하였다. 이 연구의 결과를 토대로 기술과 기술교육에 대한 다양한 대중의 인식에 관한 체계적인 후속 연구가 필요할 것이다.

Stereoscopic Conversion of Monoscopic Video using Edge Direction Histogram

  • Kim, Jee-Hong;Kim, Dong-Wook;Yoo, Ji-Sang
    • 한국방송∙미디어공학회:학술대회논문집
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    • 한국방송공학회 2009년도 IWAIT
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    • pp.67-70
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    • 2009
  • This paper proposes an algorithm for creating stereoscopic video from a monoscopic video. A viewer uses depth perception clues called a vanishing point which is the farthest from a viewer's viewpoint in order to perceive depth information from objects and surroundings thereof to the viewer. The viewer estimates the vanishing point with geometrical features in monoscopic images, and can perceive the depth information with the relationship between the position of the vanishing point and the viewer's viewpoint. In this paper, we propose a method to estimate a vanishing point with edge direction histogram in a general monoscopic image and to create a depth map depending on the position of the vanishing point. With the conversion method proposed through the experiment results, it is seen that stable stereoscopic conversion of a given monoscopic video is achieved.

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Two Independent mechanisms for perception of motion in depth

  • Shioiri, Satoshi
    • Journal of the Optical Society of Korea
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    • 제4권1호
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    • pp.25-29
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    • 2000
  • Two different binocular cues are known for detecting motion in depth. One is disparity change in time and the other is inter-ocular velocity difference. Shioiri, Saisho and Yaguchi (1999) demon-strated that motion in depth can be seen based solely on inter-ocular velocity differences as well as on the disparity change in time. They used conditions in which either cue was minimized and measured performance based on motion in depth, finding better performance than chance level when either velocity cue or the disparity cue was almost isolated. However, there may have been influences from the cue minimized in each condition, since it was practically impossible to isolate perfectly either cue. I re-analyzed their data to examine whether the performance in the condition with disparity change and that in the condition with inter-ocular velocity difference were correlated. The result showed the correlation is very low and therefore, we can conclude that the visual system has two different mechanisms for motion in depth.

만성질환을 가진 노인의 의료경험과 미충족의료 인식 (Medical Experiences and Unmet Health Care Perception among Elderly People with Chronic Disease)

  • 민동후;조정연;김정길;서수진;김미경;심은혜;차유현;김창엽
    • 보건행정학회지
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    • 제28권1호
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    • pp.35-47
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    • 2018
  • Background: The purpose of this study is to elucidate the context of medical experience and the perception of unmet healthcare of elderly people with chronic diseases based on in-depth interview data. Methods: We carried out in-depth interviews with 10 elderly people with chronic diseases using semi-structured questionnaires based on literature review. The in-depth interview data were analyzed using thematic analysis; one qualitative research methodology, three core meaning categories, and four attributes associated with unmet healthcare were ultimately derived. Results: The context of the medical experience were based on the following three categories: (1) discomfort due to diseases and high medical needs, (2) the poor community medical environment and difficulties in accessing to metropolitan medical institutions, and (3) inconvenience caused by long waiting time and side effects of medicine. In addition, the elderly with chronic disease realized the unmet healthcare as (1) the availability related to the desired medical institutions at the right time, (2) the affordability related to their economic capacity, (3) the effectiveness of the medical services they experienced, and (4) the appropriateness related to receiving medical services in a pleasant environment. Conclusion: The perception of unmet healthcare among the elderly with chronic disease is the result of interaction of multi-level and multi-dimensional factors related with their medical experience.

혁신 단서에 따른 고기능성 내의의 지각 -준거 가격, 선호도, 품질 지각 차이 및 변수 간 관계- (Perception of High Functional Underwear According to Innovation Cues: Perception Difference of Reference Price, Preference, Quality and their Relationships)

  • 정인희
    • 한국의류학회지
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    • 제37권5호
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    • pp.645-654
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    • 2013
  • This study investigated the difference of reference price, preference and quality perception of high functional underwear according to innovation cues. High functional underwear was selected as a research stimulus due to its technological innovative characteristics. A total of 93 male university students participated as subjects and data were collected by simple random experimental design operationalized with three types of innovation stimulus cues. Two types of internal reference price perception-expected price and fair price, preference, and 9 items of product quality perception-8 functional properties and overall quality of stimulus were measured with a questionnaire. The result supported the difference of reference price and quality perception by product innovation cue. The higher cue level group perceived two types of reference price and the overall quality higher than the lower cue level group. The difference of the expected price and fair price, the influence of functional properties on overall quality, and relations of the variables were discussed in depth.

The Effect of Driving Simulator Program on Elderly Drivers

  • Kim, Deokju
    • International Journal of Advanced Culture Technology
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    • 제9권2호
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    • pp.18-31
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    • 2021
  • The purpose of the present study was to present evidence for driving interventions for the elderly by conducting programs that can improve visual perception and cognitive function in a driving simulator for elderly drivers and analyse their effects. Three elderly subjects who were 65 years or older, did not have physical and cognitive impairments, and were able to drive themselves participated in the present study. A total of 12 intervention sessions, of which subjects participated in 10 sessions of nine different visual perception and cognitive function programs available in a driving simulator, were conducted and pre- and post-program assessments were conducted (two assessments in total). The assessments included the evaluation of visual perception, frontal lobe function, concentration, safe driving behaviour, and self-efficacy. The results showed positive effects of the driving simulator program on the visual perception, frontal lobe function, concentration, safe driving behaviour, and self-efficacy of all subjects. Changes in the simulator results showed remarkable improvement in the response evaluation, judgment evaluation, and predictive power evaluation, but showed difficulties in interference tasks and depth perception in common. The results showed positive effects of driving simulator training on the driving ability of the elderly, and consistent provision of such training is expected to improve the quality of life of the elderly by securing the safety of driving and actively supporting social participation.

입체영상과 평면영상의 심도 인지량에 관한 연구 (Visual depth perception of three dimensinal images and two dimensional images)

  • 조암
    • 대한인간공학회지
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    • 제10권1호
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    • pp.11-22
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    • 1991
  • This paper aims to examine experimentally the difference of subjectively measured degree of depth between two dimensional (2D) and three dimensional (3D) images. For this paper, two experiments were conducted; in the first experiment, the subjects were asked to estimate the distance between two objects presented with different depths, while in the second experiment, the subjects' role was to rank three objects in the order of distance from the screen. In both experiments, the objects were presented either in 2D or 3D images. The results of the experiments show that the use of 3D images can induce more accurate and more stable estimates of distance than the use of 2D images. However, it is also noted that the absolute degree of depth is not the unique criteria utilized by the subjects for the distinction of small differences of depth.

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노인요양시설에 대한 한국노인의 인식 (Elderly Koreans' Perception of Nursing Homes)

  • 김세영
    • 지역사회간호학회지
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    • 제27권3호
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    • pp.242-253
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    • 2016
  • Purpose: This research aims to understand the perceptions of nursing homes from the perspective of the elderly, explores the themes of such perception and provides supporting evidence for developing nursing intervention that focuses on the subjects of care within nursing homes. Methods: This research is based on qualitative research in a phenomenological methodology. The research participants included elders aged 67~83 living at home in Jeonnam, Jeonbuk Provinces and G City. Data collection methodologies included in-depth interviews and observation of participants. The data were analyzed in the phenomenological methodology by Colaizzi. Results: As a result of the research, it was found that all significant statements about the Korean elders' perception of nursing homes fell within 3 categories with 9 major themes and 23 minor themes. The three observed categories for the Korean elders' perception on nursing homes were: 'places they do not like to be in', 'places they have to be in' and 'places that makes them feel fortunate as they have a place to go'. Conclusion: This research provides foundational tools that will provide a steer for changes in nursing environment, physiological support, programs and education so that the needs of the elderly can be met more sufficiently.