• 제목/요약/키워드: Human perception

검색결과 1,526건 처리시간 0.032초

Adaptive Processing for Feature Extraction: Application of Two-Dimensional Gabor Function

  • Lee, Dong-Cheon
    • 대한원격탐사학회지
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    • 제17권4호
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    • pp.319-334
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    • 2001
  • Extracting primitives from imagery plays an important task in visual information processing since the primitives provide useful information about characteristics of the objects and patterns. The human visual system utilizes features without difficulty for image interpretation, scene analysis and object recognition. However, to extract and to analyze feature are difficult processing. The ultimate goal of digital image processing is to extract information and reconstruct objects automatically. The objective of this study is to develop robust method to achieve the goal of the image processing. In this study, an adaptive strategy was developed by implementing Gabor filters in order to extract feature information and to segment images. The Gabor filters are conceived as hypothetical structures of the retinal receptive fields in human vision system. Therefore, to develop a method which resembles the performance of human visual perception is possible using the Gabor filters. A method to compute appropriate parameters of the Gabor filters without human visual inspection is proposed. The entire framework is based on the theory of human visual perception. Digital images were used to evaluate the performance of the proposed strategy. The results show that the proposed adaptive approach improves performance of the Gabor filters for feature extraction and segmentation.

어머니의 양육태도와 아동의 자기역량지각 (Mother's parenting-attitudes and children's perceived competences)

  • 박성옥
    • 한국생활과학회지
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    • 제14권2호
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    • pp.269-276
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    • 2005
  • The purpose of this study is to examine, according to sex and grade, the relationship and difference between mothers' parenting attitudes and self-perceived competences of their children. 197 children of the 4th through the 6th grade were selected from an elementary school in Daejeon area. We used the Perceived Competence Scale for Children (Harter, 1982) to measure their self-perceived competence and the Mother's Parenting Attitudes Scale (1990, Lee & Park) to measure parenting attitudes of their mothers. Major findings are as follows: First, there were significant differences in the children's self-perceived competence according to their perception of parental warmth and control. Children with more perception of parental warmth and consistent control considered themselves higher in cognitive and social competences and in self-worth. Boys perceived higher mother's consistent control and positive participation in parenting-attitudes than girls. Girls perceived themselves higher than boys in global self-worth. Next, Out of the three grades the 4th graders indicated more perception of attachment, authoritarian control, and positive participation in parenting attitudes. There was statistically no difference in self-perceived competences of children according to their grades. Finally, there were correlations between mothers' parenting attitudes and perceived competences of their children. Children with more perception of parental warmth, attachment, positive participation, and consistent control showed higher level of physical competence, social competence, and global self-worth.

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전자상거래에서 의류소비자가 느끼는 이점과 위험지각에 관한 연구 (Clothing Consumers' Percention of Benefits and Risks on Internet Shopping)

  • 김기정;김상원;박재영;박혜선
    • 한국생활과학회지
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    • 제9권1호
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    • pp.97-106
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    • 2000
  • We investigated clothing consumers' perception of benefits and risks on internet shopping and tried to identify the perceptual differences according to presence of real experiences of internet shopping, intention to buy clothings using the internet, clothing items, and demographic variables. A total of 441 people aged of twenties and thirties were surveyed for analysis. The mean values, standard deviation, Student's t-test, paired t-test, ANOVA and multiple range test were used for statistical analysis. The results of this study included: 1. Clothing consumers perceived the internet shopping as a convenient, time-saving method, and an easy way to compare clothing items, but not a cheap tool. The most highly perceived risk was inability to identify the size of clothing item, followed by shortage of stock, delivery problem, color, textiles, after-service, and exposure of personal informations in a decreasing order. 2. Those who had real experiences of internet shopping or who had intention to use it tended to perceive more benefits and less risks on the internet shopping. 3. Perception of risks and benefits differed according to the clothing items and demographic variables.

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유치원 특성 변인이 $4{\sim}5$세 유아의 운동능력에 미치는 영향 (The Effect of Kindergarten's Factors on Athletic Movement Ability in $4{\sim}5$ Years Old Children)

  • 오연주
    • 한국생활과학회지
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    • 제13권3호
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    • pp.407-415
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    • 2004
  • The purpose of this study was to investigate the effect of kindergarten's factors on athletic movement ability in early childhood. The factors included teacher's perception of athletic movement, length of time for physical activity, and number of athletic facilities in the kindergarten. The subjects consisted of 551 children aged from four to five years in 8 private kindergartens. The instruments used for this study were the obstacle course of Project Spectrum for measuring athletic movement ability, and the questionnaire to investigate the teacher's perception, length of time for physical activity, and number of athletic facilities in the kindergarten. The data from all the tests were analyzed by correlation and regression analyses. The results of this study exhibited that the length of time for physical activity was the most important factor among three factors, and the teachers' perception of athletic movement and the number of athletic facilities in the kindergarten were also deciding factors for the children's athletic movement ability.

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사용자 행동 자세를 이용한 시각계 기반의 감정 인식 연구 (A Study on Visual Perception based Emotion Recognition using Body-Activity Posture)

  • 김진옥
    • 정보처리학회논문지B
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    • 제18B권5호
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    • pp.305-314
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    • 2011
  • 사람의 의도를 인지하기 위해 감정을 시각적으로 인식하는 연구는 전통적으로 감정을 드러내는 얼굴 표정을 인식하는 데 집중해 왔다. 최근에는 감정을 드러내는 신체 언어 즉 신체 행동과 자세를 통해 감정을 나타내는 방법에서 감정 인식의 새로운 가능성을 찾고 있다. 본 연구는 신경생리학의 시각계 처리 방법을 적용한 신경모델을 구축하여 행동에서 기본 감정 의도를 인식하는 방법을 제안한다. 이를 위해 시각 피질의 정보 처리 모델에 따라 생물학적 체계의 신경모델 검출기를 구축하여 신체 행동의 정적 자세에서 6가지 주요 기본 감정을 판별한다. 파라미터 변화에 강건한 제안 모델의 성능은 신체행동 자세 집합을 대상으로 사람 관측자와의 평가 결과를 비교 평가하여 가능성을 제시한다.

쇠고기 이력제 정착을 위한 주부들의 쇠고기 이력제의 이용실태, 인식도 및 이용의도 분석 (Analysis on Housewives' Usage, Perception and Willingness to Use Beef Traceability for Settlement of Beef Traceability)

  • 김효정;김미라
    • 한국식품조리과학회지
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    • 제29권6호
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    • pp.795-803
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    • 2013
  • This study examined the usage, perception and willingness to use beef traceability. The data were collected from 255 housewives in Busan and Gyeongnam region through a self-administered questionnaire. Frequency, Cronbach's ${\alpha}$, t test, one-way ANOVA, Duncan's multiple range test, Pearson's correlation analysis, and multiple regression analysis were conducted by SPSS Windows V.20.0. Only twelve percent of the respondents experienced to use beef traceability. Most respondents checked it by kiosk or bar code reader in a store. On the other hand, eighty-eight percent did not use beef traceability. The reasons for not usage of it were "Do not know beef traceability very well", "Do not know how to use beef traceability", and "Information from packing or counters is reliable" in order. In the level of perception of beef traceability, safety assurance was highest, followed by information quality, usefulness, and information accessibility. The percentage of correct answers of knowledge about beef traceability was not high. The multiple regression analysis showed that employment status, knowledge about beef traceability, information quality, information accessibility, and usefulness were significant factors to affect the willingness using beef traceability.

공공시설의 여가환경 적합성 인지와 물리적 상태 평가 -중노년층 이용자를 중심으로- (The Perception of the Appropriateness and the Evaluation of the Physical State in the Public Community Facilities as Leisure Facilities -Focused on the Middle-aged and the Aged-)

  • 홍성희;김성희
    • 한국생활과학회지
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    • 제9권3호
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    • pp.349-362
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    • 2000
  • The purpose of this study was to identify the factors affected on the perception of appropriateness and the evaluation of physical state in the public community facilities. The sample of the study were consisted of 381 middle-aged and the aged who were participated in the leisure programs of the public community facilities and were living in Seoul and Daegu. Frequencies, means, one-way ANOVA, and multiple regression were employed for the analysis. The results of the study were as follows: The perception of appropriateness and the evaluation of the physical state in the public community facilities were differed by the type of facilities. The factors affected on the perception of appropriateness of the public community facilities were region, the access of transportation, and leisure attitude of the middle-aged and the aged. The factors had effects on the evaluation of the physical state of the facilities were educational attainment, health status, region, the access of transportation and the leisure participation.

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임상아동 어머니의 성격특성과 어머니가 지각한 자녀의 성격특성간의 관계 (Relationship Between the Characteristics of Mother's Personality and Their Perception of Clinical Children's Personality)

  • 장정백
    • 한국생활과학회지
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    • 제19권6호
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    • pp.993-1002
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    • 2010
  • This study sought to determine wether the reliability of the KIP-C is affected by mothers' scores on of MMPI. Particiapants in this study were 100 mothers whose children visited the a children's psychiatric hospital. They were sorted into two groups; diagnosis consistent group and diagnosis inconsistent groups. the diagnosis inconsistent group showed significantly higher scores on L(p<.001) and K(p<.001) scales, while the diagnosis consistent group had higher scores on F, Ma and Si scales. When comparing the KPI-C of the groups, the diagnosis consistent groups showed significantly higher scores in ANX, SOM and HPR scales(p<.05). A correlation analysis of the validity scales of MMPI and the scales of KPI-C also showed significant correlation. It was also shown that the characteristics of the mothers' personality have important effects on their perception of their children's problems. In particular, the stronger the mothers defensive characteristics, the lower the reliability of their perception of their children's problems. Reciprocally, reliability was higher when the mothers acknowledged their problems.

초등학교 교사의 영양교육에 대한 인식 조사 연구 (Perception of Elementary School Teachers about Nutrition Education)

  • 김경애;정난희;오순희
    • 한국가정과학회지
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    • 제7권2호
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    • pp.13-30
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    • 2004
  • The purpose of this study was to investigate the status of teacher's perception about the nutrition education of elementary schooL The results of this study were as follows. Most of the teachers responded that nutrition education necessitate in curriculum of elementary school, the main reason for necessity of nutrition education was for proper growth, they thought starting period of nutrition education was to begin when children are in a kindergarten and a infant home. The perception for a suitable person to teach the nutrition education showed dietician, parents, class teacher and a related teacher in oder and the time of that is a related class, as a spare time at everyday, a special activity time, and service a meal in order. Importances of the contents of a nutrition education were proper eating habits, growth and nutrition, a food hygiene and a disease in order. Problems of elementary students' nutrition were a unbalanced eating, a ingestion a processing and instant food too much, lack of table manner, fatness and a weak child in order. The most of expected effects through the nutrition education were a good table habits and manners, the way of a efficient nutrition education were a need of link with parents, a need of link the dietician. a teacher's class and training in order. The average score of nutrition knowledge was 6.3$\sim$6.9 out of 10 and teachers of Gwangju scored more higher on nutrition knowledge than teachers of Jeonnam, as they arranged a dietician was so.

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청소년의 자원봉사활동이 시민의식과 긍정적 자기지각 및 또래관계에 미치는 영향 - 중학생과 고등학생 간 비교 - (Effects of Youth Voluntary Service on Sense of Citizenship, Positive Self-perception, and Peer Relation - The Comparison between Middle School and High School Students-)

  • 조호운;조성환;김영희
    • 한국생활과학회지
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    • 제21권4호
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    • pp.729-744
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    • 2012
  • The purpose of this study was to investigate the effects of youth voluntary on sense of citizenship, positive self-perception, and peer relations, which procedures was conducted by being comparison between middle school students and high school ones. This study also use the data given by 2st of the Seoul Education Longitudinal Study(SELS), which subjects were 7,593 youths(3,566 in middles school students and 4,027 in high school ones). The most significant variable for youth's peer relations was sense of citizenship both middle school and high school student, which indicates not only that it is encouraged by sense of citizenship but also that developing and leading the sense of citizenship for youth should be given by the school welfare policy. Positive self-perception in middle school youth influenced the second effect on their peer relations, but high school student's peer relation was impacted by the voluntary service into a secondary effect.