• Title/Summary/Keyword: Visual Paradigm

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Retinotopy of human visual cortex; A Study with 3T fMRI

  • 윤효운;정관진;임동미;조은미;송명성;연은경;박현욱
    • Proceedings of the KSMRM Conference
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    • 2002.11a
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    • pp.109-109
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    • 2002
  • Purpose: The aim of the study is to see the representation patterns of human visual cortex by perceiving some geometrical shapes. Method: 3 humans as subjects for the fMRI experiment. A classical block or box car design was used as experimental paradigm. 3 different types of fan shapes and concentric circles were presented.

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QLF Concept and Clinical Implementation (QLF의 원리와 임상적 활용)

  • Kim, Baek-Il
    • The Journal of the Korean dental association
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    • v.49 no.8
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    • pp.443-450
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    • 2011
  • The leading paradigm of dentistry had been focused on the rehabilitation treatment that identifies active caries, manages them surgically, and restores their original functions. However, changes in the external environment including the current disease prevalence require dentistry to have a paradigm shift. The new paradigm suggests the detection of caries in their earlier stages over the visual diagnosis of cavities, and the reversal of the incipient caries by non-surgical approach. For this to be achieved, a high-technology detection device recognizing changes in the earlier stages which can not he visually observed is needed. Development of early caries detection device has recently become a major issue in preventive dentistry on account of this need, and QLF(Quantitified Light induced Fluorescence) conspicuously stands out among the newly released devices. In this study, the fundamental concept of QLF(Quantitified Light induced Fluorescence) and the possible clinical applications of the earlier intraoral camera model as well as the recently designed digital camera model will be discussed.

Study on Spatio-Temporal Eye-Hand Coordination in Targeting Tasks (지시운동 수행동안 안구와 손의 시공간적 협응에 관한 연구)

  • Eun, H.I.;Yu, M.;Lee, A.R.;Kim, D.W.;Kwon, T.K.;Kim, N.G.
    • Journal of Biomedical Engineering Research
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    • v.28 no.3
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    • pp.417-422
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    • 2007
  • In this study, we investigated spatio-temporal eye-hand coordination by the "Global effect paradigm", a target-distracter configuration Global effect is observed a variety of visual tasks, for example, during rapid automatic tracking, scanning for target detail, and the comparison of target configurations. Global effect used to investigate eye-hand coordination with a task that presents a target close to a distracter. Eight young subjects participated in the experiments. The experiments consist of using a distracter less eccentric than the targe1 and using a distracter more eccentric than target. Each experiment consist of tasks which are making reference, pointing the target with watching visual stimulation(saccade) and pointing the target. The subject's task was to move towards the target as quickly as possible. We measured the eye movement by using EOG and the hand movement by using NDI Optotrak system. This study shows that eye and hand movement exists for global effect paradigm in spatio-temporal coordination.

Environmental Design and Cognitive Ecology (환경디자인과 인지생태론)

  • Kim, Joo-Mi
    • Journal of Science of Art and Design
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    • v.13 no.1
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    • pp.23-37
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    • 2008
  • Recently, there are getting popular form generation-related design methodologies and scientific discourses about the nature of nature in the environmental design. The necessity of visual perception and cognitive research is growing in this respect. Accordingly, this study was designed to discuss environmental design and cognition in the ecological perspective. This study was intended to study the structural factors of cognitive ecological space. This study focused on the systematic principle of new environmental design based on cognitive ecological approaches and what kinds of design effects this design principle has on the human being in the long nm. The results are as follows. First, the results suggests that fractal pattern should be an alternative to design cognitive ecological space and new paradigm of architecture is based on the nature of nature and human sensibility. Accordingly, they have proposed that fractal design is more empirical and environment-friendly than rational linear design. Second, this study classified the variables of cognitive ecological space into nature, tradition, preference judgement, aesthetic value, and schema. Accordingly, such features as symbol, tradition, and nature restricted by modernistic ideology should be added to new paradigm-based environmental design. Third, accordingly, this study stresses that cognitive ecological environmental design doesn't include buildings of modernism and deconstruction and is based on new science of complexity.

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A Study on the Modem Accomodation of Formative Beauty of Traditional Dress Styles (전통 복식 조형미의 현대적 수용에 관한 연구)

  • Kim, In-Kyung
    • The Research Journal of the Costume Culture
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    • v.15 no.4
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    • pp.713-725
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    • 2007
  • This treatise is designed to discover the principle of timeless continuity of Korean design from the perspective of modem accomodation of formative beauty of tractional dress style with the focus on measurement analysis of dress from visual perspective. For this purpose in this research the following subjects are studied with concentration: the 1st phase debate on the dress style appearing in the Kokuryo murals and genre painting during the later period of Chosun Dynasty regarding the formative beauty of dress style. 2nd phase debate on the points of changes and transformations during given age and given principle of Korean designs being maintained across the span of time in the context of madern accomodation of such traditional dress. From historical perspective characteristics of each given age and principles of visual formative principles appear in various ways variety attributable to mutually interactive principles according to historical background and culture. For this reason it can be said that they are determined by different paradigm or forms from characteristics of Korean style design in the present and future and those for traditional forms of dress in the past.

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Query by Visual Example: A Comparative Study of the Efficacy of Image Query Paradigms in Supporting Visual Information Retrieval (시각 예제에 의한 질의: 시각정보 검색지원을 위한 이미지 질의 패러다임의 유용성 비교 연구)

  • Venters, Colin C.
    • Journal of Information Management
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    • v.42 no.3
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    • pp.71-94
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    • 2011
  • Query by visual example is the principal query paradigm for expressing queries in a content-based image retrieval environment. Query by image and query by sketch have long been purported as being viable methods of query formulation yet there is little empirical evidence to support their efficacy in facilitating query formulation. The ability of the searcher to express their information problem to an information retrieval system is fundamental to the retrieval process. The aim of this research was to investigate the query by image and query by sketch methods in supporting a range of information problems through a usability experiment in order to contribute to the gap in knowledge regarding the relationship between searchers' information problems and the query methods required to support efficient and effective visual query formulation. The results of the experiment suggest that query by image is a viable approach to visual query formulation. In contrast, the results strongly suggest that there is a significant mismatch between the searchers information problems and the expressive power of the query by sketch paradigm in supporting visual query formulation. The results of a usability experiment focusing on efficiency (time), effectiveness (errors) and user satisfaction show that there was a significant difference, p<0.001, between the two query methods on all three measures: time (Z=-3.597, p<0.001), errors (Z=-3.317, p<0.001), and satisfaction (Z=-10.223, p<0.001). The results also show that there was a significant difference in participants perceived usefulness of the query tools Z=-4.672, p<0.001.

A Study on the Multi-sensory Preferences and Image Influences of Outdoor Leisure Spaces (옥외여가공간의 다중감각 선호 및 이미지 영향력 연구)

  • Yun Hee-Jeong;Im Seung-Bin
    • Journal of the Korean Institute of Landscape Architecture
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    • v.34 no.3 s.116
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    • pp.23-31
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    • 2006
  • Multi-sensory design results from sensory design paradigm and image centricism, which stimulates 5 sensation; visual, auditory, haptic, smell and taste sensation when we experience environment. This is helpful for designing outdoor space considering integrated sensation not only visual and auditory sensation as well as for improving visitor's satisfaction. Therefore, this study mainly intended to analyse the multi-sensory preference and the image influence of outdoor leisure space. For these purpose, this study selected 3 leisure spaces around Seoul city; Gwan-ak mountain(the type oriented natural resource), Insa-dong(the type oriented cultural resource) and Seoul land as theme park(the type oriented facility) and a survey was performed with a total of 204 visitors at the above spaces in winter and summer. The results of this study indicate that visual sensation was evaluated most high at 3 outdoor leisure spaces in both winter and summer. Visitors at Gwan-ak mountain and Seoul land prefer visual and haptic sensation, but visitors at Insa-dong prefer visual and haptic sensation in summer, visual and taste sensation in winter. Above all, this study led the designer to consider diverse sensation to access leisure space, especially haptic sense, which can be an effective design strategy to satisfy visitors.

A Study on Representation Techniques of Visual Tactility in the Surface of Contemporary Architectutre (현대건축의 표면에 나타난 시각적 촉각의 표현기법에 관한 연구)

  • Jeon, You-Chang;Kim, Sung-Wook
    • Korean Institute of Interior Design Journal
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    • v.17 no.3
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    • pp.139-147
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    • 2008
  • Modern architecture's optical mechanism focused on Ocuularcentrism neglects the tactility of vision and tends to eliminate the optical and tactile dualism of traditional spaces by representing spaces and surfaces that are abstract and cold-hearted. In other words, all sensory experiences, except for visual experiences, are eliminated to make it impossible to create the substantial core of architecture that combines time, image, and surface textures. The fast-changing social trends, the emergence of new materials and technologies, and the corresponding development of various types of media since the Industrial Revolution have changed the paradigm of human perception and representation. With the development of media, other sensory experiences besides visual experience have been stressed and human perception has converted from single perspective to complex perspective. In result, new sensory items, such as visual tactility, have replaced the traditional vision-centered hierarchy. The composition of architectural surfaces has represented the functional and commercial needs of technology, structure, as well as the socio-cultural needs of the community. In contemporary times, it is being changed and developed by the new tactility and the corresponding expression of modern architecture. Based on the visual representation of tactility of architectural surface, this study used a composition of surface that combines various events, meanings, and senses to examine how architecture can mediate and reproduce viewers' visual experiences and discover the existential relationship between architecture and men.

Trends on Object Detection Techniques Based on Deep Learning (딥러닝 기반 객체 인식 기술 동향)

  • Lee, J.S.;Lee, S.K.;Kim, D.W.;Hong, S.J.;Yang, S.I.
    • Electronics and Telecommunications Trends
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    • v.33 no.4
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    • pp.23-32
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    • 2018
  • Object detection is a challenging field in the visual understanding research area, detecting objects in visual scenes, and the location of such objects. It has recently been applied in various fields such as autonomous driving, image surveillance, and face recognition. In traditional methods of object detection, handcrafted features have been designed for overcoming various visual environments; however, they have a trade-off issue between accuracy and computational efficiency. Deep learning is a revolutionary paradigm in the machine-learning field. In addition, because deep-learning-based methods, particularly convolutional neural networks (CNNs), have outperformed conventional methods in terms of object detection, they have been studied in recent years. In this article, we provide a brief descriptive summary of several recent deep-learning methods for object detection and deep learning architectures. We also compare the performance of these methods and present a research guide of the object detection field.

The Development and Application of Elementary Convergence Teaching and Learning Strategy Using the Science Visual Media (과학 영상매체를 활용한 초등 융합형 교수학습 전략 개발 및 적용)

  • Kwon, Nanjoo
    • Journal of Science Education
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    • v.38 no.1
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    • pp.29-40
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    • 2014
  • The new paradigm of the 21st Century science education explores a wide range of possibilities that can foster students' interest toward science and creative convergence thinking. The purpose of this study was to utilize science visual media that can improve students' scientific creativity and artistic sensibility. Curriculum reorganization can be one solution for the primary convergence science teaching and learning strategies using science visual media. Through a new and exciting experiment to a various science visual media such as science picture, TV film, movie, UCC, etc., we hope this teaching and learning strategy can increase the students' scientific interest and attitude.

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