• The Journal of the Petrological Society of Korea
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• v.21 no.2
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• pp.113-128
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• 2012

The chemical composition of the continental crust play an important role in understanding of crustal formation and evolution and quantifying other processes taking place within continental crust. We summarized geochemical data reported in the previous literature for the crustal rocks in the Korean Peninsula and divided their chemical composition into geologic time scale. In the variation diagram normalized by average composition of the upper crustal rocks, the geochemical characteristics of the upper crust during Triassic period is different from those of the upper crustal rocks after Jurassic period or before Precambrian. However, the geochemical characteristics of the Jurassic and Precambrian period are similar each other. Our summarized data indicate that the source material of Triassic upper crust may be different from that of Jurassic or Precambrian upper crust.

• Archives of design research
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• v.15 no.4
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• pp.243-252
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• 2002

The enlarge the range of internet users require user centered design method what understanding of cognitive faculties about users by different age groups. This study aims at analyzing cognitive faculties about visual information on web interface by different age groups, presenting visual perception cognitive process model as an evaluation model and proposing an effective web interface design guideline, On the basis of analyzing cognitive faculties verified what each detail property of visual perception cognitive process model as form, color, space, movement and physiological, physical cognitive faculties had have individual cognitive faculties. As the result visual perception cognitive process model suggested in this study can be used as an evaluation model of web interface and users' cognitive faculties analyzed in visual perception measurement by different age groups can be applied as a web interface design guideline. In addition, this study has a meaning in that it makes a chance to extend a web designer's roles and establish a direction of future research by usability of different age groups.

• Archives of design research
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• v.19 no.2 s.64
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• pp.5-14
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• 2006

Visual perception is ability that analyze visual information about things accepting through eyes in central nervous system. That is, it is ability that recognize and discriminates a visual stimulus, and analyzes by combining such stimulus with previous experience. At today, work which clears visual perception obstacle's cause through visual perception test and grasps all special quality of visual perception obstacle's is used method of treating that improve visual perception obstacle by visual perception training program. Present, visual perception test tools using the paper and pens are used mainly on psychological consultation of welfare facilities and education for the handicapped or occupational therapy, but a lot of problems are discovered in it. Therefore, purpose of this paper is to develop prototype of web-based visual perception test program that can construct to database to solve existing problem, and to design graphic item. As a result, classified measurement pattern that can diagnose visual perception by three, and illustrated development direction of graphic item for examination with this. Also, extracted check list item that should consider for design and construction of visual perception test program and the variable for feasibility study of believability, and presented process for prototype development.

• Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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• 2008.05a
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• pp.113-116
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• 2008

본 연구는 국내학술지의 논문 중 고령자의 시지각에 관한 연구의 내용을 분석하여 고령자의 시지각 특성에 맞는 생활환경조성에 필요한 기초자료를 얻기 위하여 수행하였다. DBPLA의 고령자(노인)에 관한 연구 538편과 한국노년학회지에 게재된 663편의 논문, 총 1201편의 학술논문을 연구대상으로 삼아, 고령자의 시지각과 관련된 내용(색체, 조명, 시각, 시지각)을 분석하였다. 그 결과, 고령자와 관련된 연구는 계속 증가하고 있으나 고령자 시지각과 관련된 연구는 매우 부족한 것을 알 수 있었다. 따라서 고령자의 시지각 특성을 파악할 수 있는 다양한 연구의 필요성이 제기되며, 고령자가 자립적인 생활을 하는데 도움을 줄 수 있는 도구의 개발이나 생활환경의 디자인의 필요성을 밝히는 바이다.

• Journal of Families and Better Life
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• v.12 no.2
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• pp.229-238
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• 1994

본 연구는 시간자원의 중요성이 증가하는 현대사회에서 주부가 지각하는 시간압박 감이 점차 높아질것으로 예상되는 가운데 시간압박감이 소비자행동에 어떻게 작용하고 그로 인한 문제점은 무엇인지 밝혀보려는 의도에서 수행되었다. 서울시에 거주하는 주부 546명을 대상으로 시간압박지각정도를 측정하고 이를 바탕으로 소비자집단을 분류된 소비자 집단 사이에 인구.사회 경제적특성과 시간 절약형 내구제의 구매의사결정 과정의 차이가 있는지 분석하였다. 그 결과 시간 압박지각 정도에 따라 고.중.저의 세집단으로 구분되었는데 중간집단에 가장 많은 응답자가 포함되었고 높게 지각하는 집단에 가장 적은 응답자가 포함되었다. 그러나 기존의 연구와는 달리 취업주부의 18.7%가 시간압박을 낮게 지각하는 집단에, 그리고 전업주부의 6.8%가 시간압박을 높게 지각하는 집단에 분류되어 취업주부가 시간압박을 높게 지각하는 전형적인 소비자집단이 아닐수 있음을 발견하였다. 집단별 인구.사회경제적 특성과 시간절약형내구재의 구매의사결정과정의 차이도 부분적으로 밝혀졌으나, 예상과 달리 시간압박감을 높게 지각하는 집단의 시간절약형내구재의 소유와 사용이 오히려 낮게 나타났다.

• Cartoon and Animation Studies
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• s.19
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• pp.161-181
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• 2010

Human beings experience the outside world through senses and have developed various ways of representation to preserve what they've experienced. The rapid progress of digital technology has opened a new era of representation technology, and furthermore, is functioning as a technology which offers new experiences. The sensory experiences through the sense of sight, which humans depend on more than 70% to perceive the outside world, have been becoming the center of representing the reality as the 3-D graphics technology has been growing, and developing by being grafted onto different areas of study. Various technologies to express the sense of reality, such as the technology to reinforce the virtual reality and to represent it in the reality, computer graphic, TUI technology, and five sensory technologies which apply humans' senses, are making advancement based on humans' visual features and sensory elements. In particular, the 3-D technology to display solidness provides not only representation but also new sensory experiences, and is emerging as the key technology to image contents. However, compared to the development of technology of 3-D graphics, there have been few basic studies on the principles of the sense of vision. Therefore, in this study, the principles and elements to sense videos will be examined. The sensory features of 3-D images to represent the sense of reality will be researched into, especially focusing on the experiential and physiological elements to sense 3-D structures, and the physical and psychological elements to sense shapes, which might be hopefully the basic study for producing 3-D contents.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 2003.11a
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• pp.1161-1165
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• 2003

본 연구에서는 인터넷 쇼핑에서 소비자들이 구매결정으로 지연하고 불안해하는 원인을 제품군별로 기존의 지각된 위험과 더불어 새로운 쇼핑방식 이용에 따른 위험 그리고 소비자 특성 등과 관련지어서 알아보았다. 연구결과, 인터넷 쇼핑 시 소비자가 지각하는 위험은 제품군에 따라서 다르게 나타났다. 인터넷 쇼핑몰에서의 쇼핑경험이 없는 소비자들이 경험이 있는 소비자들보다 위험을 더 높게 지각함으로써 더 불안해했다. 쇼핑빈도에 관해서는 제품군에 관계없이 쇼핑빈도가 증가함에 따라서 지각된 위험이 감소하였다. 인터넷쇼핑을 경험한 집단과 무경험 집단을 판별해주는 소비자 특성변수로는 제품군에 관계없이 충동구매경향성과 의견선도로 나타났다. 소비자 특성과 불안 요소인 지각된 위험간의 관련성은 제품군에 따라서 다르게 나타났다. 본 연구는 제품군별로 인터넷쇼핑 경험집단과 무경험 집단 간의 지각된 위험에서의 차이와 두 집단을 판별해주는 소비자 특성변수를 실증적으로 살펴봄으로서 인터넷쇼핑의 이용가능성을 더욱 높일 수 있는 기초 자료를 제공했다는 점에서 의의를 갖는다.

• Journal of the Institute of Electronics and Information Engineers
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• v.51 no.4
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• pp.131-143
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• 2014

We propose a no-reference perceptual fog density and visibility prediction model in a single foggy scene based on natural scene statistics (NSS) and perceptual "fog aware" statistical features. Unlike previous studies, the proposed model predicts fog density without multiple foggy images, without salient objects in a scene including lane markings or traffic signs, without supplementary geographical information using an onboard camera, and without training on human-rated judgments. The proposed fog density and visibility predictor makes use of only measurable deviations from statistical regularities observed in natural foggy and fog-free images. Perceptual "fog aware" statistical features are derived from a corpus of natural foggy and fog-free images by using a spatial NSS model and observed fog characteristics including low contrast, faint color, and shifted luminance. The proposed model not only predicts perceptual fog density for the entire image but also provides local fog density for each patch size. To evaluate the performance of the proposed model against human judgments regarding fog visibility, we executed a human subjective study using a variety of 100 foggy images. Results show that the predicted fog density of the model correlates well with human judgments. The proposed model is a new fog density assessment work based on human visual perceptions. We hope that the proposed model will provide fertile ground for future research not only to enhance the visibility of foggy scenes but also to accurately evaluate the performance of defog algorithms.

• Therapeutic Science for Rehabilitation
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• v.12 no.2
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• pp.55-68
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• 2023

Objective : This study aims to analyze the effects of visual perception intervention by systematically reviewing the studies that applied visual perception intervention to children with cerebral palsy. Methods : The databases used were PubMed, EMbase, Science Direct, ProQuest, Koreanstudies Information Service System (KISS), Research Information Sharing Service (RISS), and the National Assembly Library. The keywords used were cerebral palsy, CP, and visual perception. According to the PRISMA flowchart, 10 studies were selected from among studies published from January 1, 2012 to March 30, 2022. The quality level of the selected studies, the demographic characteristics of study participants, the effectiveness of interventions, area and strategies of intervention, assessment tools to measure the effectiveness of interventions, and risk of bias were analyzed. Results : All selected studies confirmed that visual perception intervention was effective in improving visual perception function. In addition, positive results were shown in upper extremity function, activities of daily living, posture control, goal achievement, and psychosocial areas as well as visual perception function. The eye-hand coordination area was intervened in all studies. Conclusion : In visual perception intervention, It is necessary to evaluate the visual perception function by area, and apply systematically graded customized interventions for each individual.

• Proceedings of the Korean Institute of Landscape Architecture Conference
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• 2006.10a
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• pp.18-22
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• 2006