• Title/Summary/Keyword: Visual Studies

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A Study on the Improvement of Human Operators' Performance in Detection of External Defects in Visual Inspection (품질 검사자의 외관검사 검출력 향상방안에 관한 연구)

  • Han, Sung-Jae;Ham, Dong-Han
    • Journal of the Korea Safety Management & Science
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    • v.21 no.4
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    • pp.67-74
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    • 2019
  • Visual inspection is regarded as one of the critical activities for quality control in a manufacturing company. it is thus important to improve the performance of detecting a defective part or product. There are three probable working modes for visual inspection: fully automatic (by automatic machines), fully manual (by human operators), and semi-automatic (by collaboration between human operators and automatic machines). Most of the current studies on visual inspection have been focused on the improvement of automatic detection performance by developing a better automatic machine using computer vision technologies. However, there are still a range of situations where human operators should conduct visual inspection with/without automatic machines. In this situation, human operators'performance of visual inspection is significant to the successful quality control. However, visual inspection of components assembled into a mobile camera module belongs to those situations. This study aims to investigate human performance issues in visual inspection of the components, paying more attention to human errors. For this, Abstraction Hierarchy-based work domain modeling method was applied to examine a range of direct or indirect factors related to human errors and their relationships in the visual inspection of the components. Although this study was conducted in the context of manufacturing mobile camera modules, the proposed method would be easily generalized into other industries.

Objective quantification of the impact of blepharoplasty on the superior visual field

  • Kim, Hyodong;Lee, Sanghun;Son, Daegu;Yeo, Hyeonjung
    • Archives of Plastic Surgery
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    • v.49 no.1
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    • pp.19-24
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    • 2022
  • Background Blepharoplasty has both aesthetic and functional benefits in patients with pseudoptosis; however, previous studies could not demonstrate its beneficial effects quantitatively and objectively. The authors objectively analyzed the visual field before and after surgery and investigated whether measurements of the visual field can be applied as a suitable predictor of surgical outcomes. Methods In total, 18 eyelids in nine patients with pseudoptosis who had undergone simple skin excision blepharoplasty were evaluated prospectively from February to May 2016. The visual fields were analyzed preoperatively and 3 months postoperatively using the Goldmann kinetic perimetry test. The visual field test area was assessed using Adobe Photoshop. Results Blepharoplasty had an average 4.99-fold beneficial effect on the superior visual field. In particular, more improvement was seen in the superior temporal quadrant than in the nasal quadrant. No correlation was found between the preoperative margin-to-reflex distance 1 (MRD1) and the surgical outcome (P=0.119). However, there was a strong correlation between the preoperative superior visual field and the surgical outcome (P=0.001). Conclusions Using the Goldmann kinetic perimetry test, we objectively and quantitatively proved the beneficial effect of blepharoplasty on patients with pseudoptosis. Furthermore, we demonstrated that the preoperative visual field is a better preoperative surgical outcome predictive factor than the preoperative MRD1.

A Study on the Shopping Life through Mobile Visual Search

  • Tungyun Liu;Sijun Sung;Heeju Chae
    • Asia-Pacific Journal of Business
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    • v.15 no.1
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    • pp.45-69
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    • 2024
  • Purpose - To examine the influence of mobile visual search as a strategic technology service on consumer perceived economic value and customer commitments, which in turn affect consumer's usage intention of mobile visual search. This study also explores the moderating effect of different levels of consumer online shopping orientation. Design/methodology/approach - One-by-one open-ended in-depth interview was first undertaken to 15 Korean consumers to figure the features of mobile visual search. Then a conceptual model was built to verify the hypotheses that indicate the impact of mobile visual search on consumer perceived economic value and customer commitment, which further influence consumer's usage intention. Findings - The results show Convenience, Information quality, Personalization, Text-free search interface design and Visual communication of mobile visual search positively influence consumer perceived economic value and customer commitment and in turn positively affect consumer's usage intention. Moreover, the different levels of consumer online shopping orientation also found to have different effects on consumers' perception and behavior of using mobile visual search in online fashion shopping. Research implications or Originality - The present study verified that mobile visual search is a service tool that consumers want to use in the online fashion shopping journey since it provides economic benefits.

Design of Fuzzy Logic System for Mobile Robot based on Visual Servoing

  • Song, Un-Ji;Yoo, Seog-Hwan;Choi, Byung-Jae
    • Proceedings of the Korea Society of Information Technology Applications Conference
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    • 2005.11a
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    • pp.113-117
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    • 2005
  • This paper describes a visual control scheme, fuzzy logic system for visual servoing of an autonomous mobile robot. An existing communication autonomous mobile robot always needs to keep the object in image to detect the moving object. This is a problem in an autonomous mobile robot for spontaneous activity. To solve it, some features for an object are taken from an image and then use in the design of fuzzy logic system for decision of moving location and direction of visual servoing contrivance(apparatus). So continuous tracking is possible by moving the visual servoing contrivance. We present some simulation results and further studies in the Section of Simulation and Concluding Remarks.

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The Effect of Using a Two Step Verbal Cue to a Visual Target above Eye Level on the Parkinsonian Gait (파킨슨병 환자 보행에서 눈 높이 위수준의 시작 목표에 대한 두 걸음 구두 암시의 효과)

  • Kim, Jong-Man;Ahn, Duk-Hyun;Choi, Woon-Sung
    • Physical Therapy Korea
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    • v.1 no.1
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    • pp.92-97
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    • 1994
  • It is well known that visual cues can improve the motor performance of Parkinsonian patients. Previous laboratory studies have examined the effects of visual cueing to the floor. This case study examined the effects of using a visual cue above eye level on the gait of a Parkinsonian man. It was found that cueing the patient to a target above eye level while waking not only improved the kinematic parameters of the gait cycle but also facilitated a more functional gait pattern with re-intergration of arm swing, rhythm, heel strike and a more erect posture. Visual targeting above eye level may serve as an important clinical tool for physiotherapists treating Parkinsonian patients.

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A Study on Visual Factors Affecting Purchase of Convenient Store's Packed-meal on Mobile Application (모바일 애플리케이션을 통한 편의점 도시락 구매 과정에 영향을 미치는 시각 요소에 관한 연구)

  • Lee, Da-Hyun;Kim, Seung-In
    • Journal of Digital Convergence
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    • v.18 no.11
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    • pp.443-448
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    • 2020
  • The purpose of research is identifying visual factors affecting purchase of convenient store packed-meals through mobile applications. Previous studies have not covered mobile applications on purchase of convenient store packed-meals and this inspired the research topic. Document analysis and online survey are mainly implemented and 4 visual factors; typography, product image, main color, brand logo have been set as a research variables. It is revealed that consumers recognize product image prior to the rest and their purchase intentions are most significantly affected by product image. In conclusion, the product image should encourage consumers to have expectation on packed-meal and need to deliver credibility at the same time. Hence, the application should be designed to solely spotlight product image to lead consumer's concentration on it. The research can be further expanded by including non-visual factors as its variables or increasing scale of survey samples.

Microphotographs and the Invisible Method of Specimen Preparation (현미경 사진, 그리고 감추어진 방법)

  • Sung, Han-Ah
    • Journal of Science and Technology Studies
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    • v.11 no.2
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    • pp.67-96
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    • 2011
  • Studies in scientific visualization have disclosed a visual chain among many scientific visualizations, which starts from the photographs that have many details to diagrams that enable scientists to make specific claims due to their abstract characters. Located at both ends of the visual chain, photographs and diagrams are regarded as being different kinds and having different characteristics. The photographs - or microphotographs to be precise - that this paper discusses, however, had been removed of unnecessary details and were prepared with carful attention to illustrative functions that diagrams usually perform. Following microphotographic changes in a Korean laboratory, this article shows that the knowledge of specimen preparation was transmitted from an American leading group to the Korean laboratory through a direct contact, and that with this, the technique of taking microphotographs of the laboratory was much improved. The specimen preparation method is, however, a tacit knowledge that is invisible in both group's papers. This article argues that the method of specimen preparation is the driving force that made the microphotographs act like carefully prepared diagrams and acquire objectivity.

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The Research of Visual and Aesthetic Values of an Asian Ethnic Look (아시안 에스닉 룩의 조형성과 미적가치에 판한 연구)

  • Kwon Ha-Jin;Kim Min-Ja
    • Journal of the Korean Society of Costume
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    • v.56 no.6 s.105
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    • pp.114-131
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    • 2006
  • An Asian Ethnic Look is based on its own values of traditional costumes and the fashion accessories that are influenced by its own genre within their own culture. In this thesis, it contemplates the study of visual values and the traditional influences of the Modern Western Designers and Asian Designers' definitions and the considerations of an Ethnic look in the countries like Middle East, India, Korea, China and Japan. The standard procedure to understand their Visual and Aesthetic values is acknowledgement of body. From that foundation, an Asian Ethnic Look and its Visual and Aesthetic Values were researched through out the Middle East Asian Look, Indian Look, Korean Look, Chinese Look and Japanese Look which effective after 1990's. The studies are further researched to the comparisons and interpretations of the Western Designers and the Asian Designers, and the definitions of an Asian Ethnic Look and its Visual and Aesthetic Values in between those. According to each country's religious attitudes, a beauty of concealment and a beauty of negative space appeal which emphasize an ethics on humanity and non-materialistic attitudes. It takes meanings of a phenomenon of nature's worship, Yin-Yang five elements of principles, oneness of body-mind and oneness of universe-mankind. Following the studies of Visual and Aesthetic Values of an Asian Ethnic Look, in 1990's Western Designers' interpretations were prominent use of the Asian Traditional Motif3. However, the interpretations of the Asian Designers were based on their own traditional ethics and they minimized decorative elements but enhanced naturalism, feminism, calm and sober designs compare to the past. The Asian Designers' interpretations of their visual values were based on their Asian mentality, beauty and its straightforward genuine perspective and respects of their own culture.

A Study on Acquisition Strategy of Records for Artists and Their Records Information Management (시각예술 작가 기록물 수집전략 및 기록정보 관리 연구)

  • Jung, Kong Ju;Park, Ju Seok
    • The Korean Journal of Archival Studies
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    • no.40
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    • pp.61-93
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    • 2014
  • One of the reasons behind the surfacing of such issues is because the record does not exist and even if the records remained, it is because they are not being properly managed. In Korea, National institutions in the field of visual arts, currently there are no archives that manage only the records for the visual arts as an independent institution, and the reality is that the National Museum of Archives is still in the beginning stage as well. This study has conducted a research on the records collection strategy and the management of the record information of an author who is the creator of the visual arts as a starting point of the visual arts. For this purpose, the definition of visual arts and the concept of an author covered in this study will be examined and the types of documentary that may occur in the field of visual arts were analyzed. In addition, the history of an author is its personal record thus a personal history and private archive have been examined. Based on this background, the cases on the personal record and the management of the record information of domestic and foreign authors were analyzed and the implications were derived.

A Study on Effect of Visual Elements of Cosmetic Package Design on Purchasing of MZ Generation (화장품 패키지디자인의 시각 요소가 MZ세대의 구매에 미치는 영향 연구)

  • Lee, Joo-Yeon;Kim, Seung-In
    • Journal of Digital Convergence
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    • v.20 no.2
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    • pp.383-388
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    • 2022
  • This study is about the elements of cosmetic's package design which MZ generation prefer and the effect on purchase. Naming, brand logo, color, typography, layout, illustration, matter & finish, and meaningful are classified 8 visual elements through the pilot study. After that this study analyzes specific visual elements which MZ generation prefer through online survey and In-depth interview based on the 8 visual elements. As a result of study, MZ generation prefer tidy and neat design to decorated style, and they feel brand logo is the most important thing of all 8 visual elements. In additional, meaningful of brand is barley able to compare with price, although it is significant visual element. This study may help to develop the way of the cosmetic's package design for MZ generation.