• Title/Summary/Keyword: depth perception

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Visual Discomfort Analysis of Binocular Depth Change on 3D Stereoscopic Imaging (입체영상의 양안 깊이 변화에 따른 시청 피로도 분석)

  • Kim, Nam-Gyu
    • Journal of Digital Contents Society
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    • v.16 no.1
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    • pp.127-135
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    • 2015
  • The development of stereoscopic display hardwares and 3D authoring softwares expands its application areas from particular virtual simulation applications to general movies, games, advertising applications. However, the binocular-based 3D stereoscopic images cause fatigue to viewers. Recent performed many research results about the binocular stereoscopy's depth perception and viewers' fatigue are derived from experimental users studies. In some results, watching and making guidelines for 3D stereoscopic imaging contents are introduced. The 3D stereoscopic-related contents have the contradictory aspects, which are audiences' pursuit of a tolerable minimum fatigue and producer's its of excessive depth changes for providing viewers' immersion. This paper provides user experiments and analysis data in aspects of 3D depth changes. For use of producers, a safety zone and translational velocity of 3D depth changes are introduced. Also, on the viewer side, we present the depth change adaptation time by using an EEG device.

Perception of the Body and Clothing Style according to the Period of Body Design Experience -Focusing on Women in their 20s- (바디 디자인 경험기간에 따른 몸의 인식과 의복 스타일에 미치는 영향 -국내 20대 여성을 중심으로-)

  • Lee, Joohyung;Ha, Jisoo
    • Fashion & Textile Research Journal
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    • v.22 no.3
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    • pp.287-295
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    • 2020
  • This study examined body perception, body design behavior and clothing style for women in their 20s according to the period of body design experience. Body perception was analyzed from the two viewpoints of seeing the body as the subject of social suppression and as the means of self-expression. This could lead to understanding how modern women perceive their bodies based on experiences of body design. In-depth Interviews conducted through semi-structured questionnaires among women in their 20s were divided into body design experience less than 24 months and the group of body design experience more than 24 months. The results of this study are as follows. First, both groups did not feel satisfaction in terms of body perception. Women in the less than 24 months group showed their eager for firm body as well as skinny body influenced by social media, while the group with more than 24 months, felt a strong suppression to have a perfect body as a professional due to the expectations of others. Second, the group with less than 24 months conducted body designs to satisfy themselves, while group with more than 24 months focused on the body shape changes through systematic exercise and a strict diet plan that indicated a strong desire to show their perfect body to others. Third, the two groups showed differences in their clothing style.

Is Science Experience Enough for Early Elementary Students? - A Case Study on the Perception of Science and Science Experience of Early Elementary Students - (초등 저학년 학생들에게 과학 경험은 충분할까? - 초등 저학년 학생의 과학에 대한 인식과 과학 경험에 대한 사례 연구 -)

  • Lee, Ga Ram;Park, Il-Woo;Ju, Eunjeong
    • Journal of Korean Elementary Science Education
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    • v.39 no.4
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    • pp.475-493
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    • 2020
  • In Korea, the lower elementary grades are applying a topic-oriented integrated curriculum. It causes a lack of science content and inquiry experience for young children. The purpose of this study is to understand the scientific experiences and perceptions of the lower elementary graders and to inquire about the meaning of those experiences in their science learning. Four students (male 2, female 2), their parents, and their first-year homeroom teachers participated in the study. The data collection was mainly conducted through in-depth interview of them. Results showed that the 'experiments' were the student's the main perception of science, and the epistemic emotion that students mainly feel about science was 'curiousness'. Since most experiences were dependent on non-formal educational experience, the parents were an important factor to determine their experiences about science. Various factors, such as students' scientific experiences, their epistemic emotions, and the parents, interacted to form children's perception of science. The positive perception of science affected the level of motivation and expectation for science learning as the third grade. It is suggested that improvement of curriculum and textbooks should emphasize scientific exploration for the lower graders of elementary school, which provides them meaningful scientific experience in school.

Types of Subjective Perception of Hearing-Impaired Persons on Sign Language Interpretation (수화언어통역서비스에 대한 청각장애인의 주관적 인식 유형)

  • Oh, Soo-Kyung;Song, Mi-Yeon
    • 재활복지
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    • v.21 no.4
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    • pp.1-31
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    • 2017
  • This study identities various types of subjective perception of hearing-impaired persons on sign language interpretation using Q-methodology in an attempt to explore ways for developing more useful sign language interpretation services for them. For this purpose, 35 statements are extracted based on literatures and in-depth interviews and Q-classification is conducted for 20 interviewees. The results identify a common perception on the provision of sign language interpreter to frequently used institutions of hearing-impaired persons. They also derive three distinguished types of perception: seeking specialization of sign language interpretation, seeking traditional sign language interpretation services and seeking expansion and improvement of sign language interpretation services. Based on the results, the study suggests residence of sign language interpreters in public facilities, improvements of qualification system and education and training courses, specialization by field and improvement of the practice of sign language interpretation services, provision of customized services to the elderly and use of sign language interpreters reflecting the needs of the users.

Exploring Different Users' Perception of Smart Harness on Construction Sites (건설현장 스마트 안전대 사용자별 인식 차이에 관한 연구)

  • Kim, Hyeon-tae;Ahn, Chang-bum;Park, Moon-seo
    • Journal of the Korea Institute of Construction Safety
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    • v.4 no.1
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    • pp.22-29
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    • 2021
  • To prevent fall from height, interest in the development and introduction of smart harness is increasing as policies and laws such as mandatory use of smart safety equipment at construction sites. However, despite the potential of smart harness, construction safety cannot be contributed unless adopted or used by users. The objective of this research is to examine the perception between safety managers and workers on smart harness, user perception according to user's experience and differences through semi-structured in-depth interviews. As a result of the interview and comparative analysis, both safety managers and workers perceived smart harness as uncomfortable, and workers with experience in using smart harness perceived that simple functions that inform risks are useful for securing safety. This research results show different user's perception of smart harness can be confirmed how much factors affect the use of smart harness, which can provide implication into establishing measures to strengthen the use of smart harness in the future.

Perceptions of Elementary School Teachers on the Use of Analogy Generation in Scientifically-gifted Education (과학영재교육에서 비유 만들기 활동의 활용에 대한 초등학교 교사들의 인식)

  • Noh, Tae-Hee;Yang, Chan-Ho;Kang, Hun-Sik
    • Journal of Korean Elementary Science Education
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    • v.30 no.1
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    • pp.22-37
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    • 2011
  • In this study, we investigated the perceptions of elementary school teachers on the use of analogy generation in scientifically-gifted education. The relationships among the perceptions and the self-perception as teacher for scientifically-gifted students were also investigated. A survey was administered to 119 elementary school teachers, and in-depth interviews with some teachers were conducted. The results revealed that the teachers had a relatively good understanding of the advantages/disadvantages of analogy generation in cognitive, affective, and learning environmental aspects. Their perceptions on the usability of analogy generation and their willingness to practice of it in scientifically-gifted education was also positive. They highly perceived on the various factors related to effective uses of it in scientifically-gifted education. Their self-perception as teacher for scientifically-gifted students was comparatively low, and significantly related with the perceptions on the advantages of it, the usability, the practical methods to use, and the various factors related to effective uses in scientifically-gifted education. Educational implications of these findings are discussed.

Perception on Social Mix of Managers and Residents in the Mixed Housing Complexes for Sale and Rental Apartment (분양임대혼합아파트 단지의 소셜믹스에 대한 관리자 및 거주자 의식조사)

  • Lee, Soomin;Kim, Youngjoo
    • Journal of the Korean housing association
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    • v.25 no.6
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    • pp.27-37
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    • 2014
  • The purpose of this study was to identify the perception on social mix of managers and residents in the mixed housing complexes for sale and rental apartment. For the research purpose, concept and background of social mix, relevant policies, preceding research trend of social mix were organized through the literature analysis. In addition, observation study was executed to examine physical aspects of three selected sites as research subjects. Also, current state and awareness for social mix were conducted by using in-depth interview with 6 managers and 30 residents in selected areas with semi-structured questionnaires from June 3 to 7, 2013. The results of the study are as following: In the aspect of management, managers said that the biggest issue of mix-housing complex was dualization of management subject such as delegate of residents and tenants. Therefore, legislation which is suitable for unique features of mix-housing complex is required. To decrease disharmony between condominium and rental apartment, controlling the distribution ratio between condominium and rental apartment can be a good way. Accommodating middle class in mixed-housing complex is considered to reduce the social gap. Socially, multilateral and continuous effort through government, industry and academic area is required to inspire positive awareness on social mix among residents in mixed housing complex.

Analysis of food irradiation education for elementary, middle, and high school students for three years in South Korea

  • Choi, Yoonseok;Kim, Jaerok;Han, Eunok
    • Nutrition Research and Practice
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    • v.10 no.2
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    • pp.237-244
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    • 2016
  • BACKGROUND/OBJECTIVES: The current South Korean government policy on food irradiation technology should be reformed based on an in-depth investigation of the communications aspect, because the issue is no longer of a technological nature, given the proven safety and efficacy of the processes. SUBJECTS/METHODS: The target population of the education program consisted of elementary, middle, and high school students attending 310 schools in South Korea (2013: 63 schools, 2014: 104 schools, 2015: 143 schools). Data subjected to analysis were 13,327 pre-education and 12,641 post-education questionnaires received from 7,582 elementary, 2,671 middle, and 3,249 high school students who participated in the education program from May 2012 to April 2015 (n = 12,831), after the exclusion of inadequately filled-in questionnaires. RESULTS: Analysis of the three-year educational effect trend was conducted by comparing levels of variables before and after food radiation education. The analysis yielded the finding that the post-education levels were significantly higher for all variables. That is, for interest in education, perception (necessity, safety, subjective knowledge, and information acquisition), objective knowledge, and attitude, with the sole exception of objective knowledge in 2013. CONCLUSIONS: Given that post-education levels of perception, knowledge, and attitude concerning irradiated foods increased considerably compared to pre-education levels, behavior change should be induced by providing continuous education to enhance, these primary variables.

Chronically Ill Patients' Perception of Hospital Nurses (만성질환자의 병원간호사에 대한 인식)

  • Lee, Byoung-Sook;Lee, Mi-Aie;Eo, Yong-Sook
    • Journal of Korean Academy of Nursing
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    • v.48 no.3
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    • pp.311-322
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    • 2018
  • Purpose: The purpose of this qualitative research was to investigate chronically ill patients' perception of hospital nurses. Methods: Individual in-depth interviews and qualitative content analysis were used for data collection and analysis respectively. Participants were 13 chronically ill hospitalized patients or outpatients in three universities hospitals. All interviews were recorded and transcribed verbatim. Data were analyzed using the qualitative content analysis suggested by Graneheim and Lundman (2004). Results: Three themes emerged from the 10 sub-themes, which were categorized from the 21 condensed meaning units by interpreting the underlying meanings. The three themes were "person giving comfort and support by caring", "person facilitating the process of healing", and "person taking the initiative in power relations". Two themes involved positive experiences of patients and the other included negative ones. Conclusion: The results showed that the participants perceived the hospital nurses as devoted to caring for patients and facilitating treatments, but authoritative in performing their duty. Based on these results, it is recommended that hospital nurses improve their nursing knowledge, skills and humanistic attitude.

Nurse's Perception on Do-Not-Resuscitate Orders (심폐소생술 금지에 대한 간호사의 인식)

  • Jo, Jeong-Lim;Lee, Eun-Nam;Byun, Sook-Jin
    • Journal of Korean Critical Care Nursing
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    • v.4 no.1
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    • pp.11-24
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    • 2011
  • Purpose: The purpose of this study was to grasp the subjectivity of the nurses toward DNR (Do not resuscitation) order. Methods: Q methodology was employed to explore the nurses' subjectivity. Q population consisted of 292 statements that were obtained through individual in-depth interviews targeting 30 employees(nurses, doctors, staff members) and literature review. Finally, 30 nurses classified 34 statements using a 9 point scale. Results: The current survey that probed into the subjectivity of the nurses relative to DNR order abstracted four categories. The first type (restrictive acceptance type) perceived the determinants of DNR as the patient's hopeless state. The second type (evidence-based type) emphasized the decision based on the guideline. The third type (medical personnel-centered type) showed the characteristic that depends passively on the professional judgement. The fourth type (rationalistic type) emphasized rational characteristic that DNR decision needs to be made by considering several situations such as economic and psychological burden of family and the quality of life. Conclusion: These types of nurse's perception need to be considered in the nurses' continuing educational program in order to confront affirmatively and positively with ethical dilemma.

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