• Title/Summary/Keyword: 인간 숙련자 기술

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Natural Hand Detection and Tracking (자연스러운 손 추출 및 추적)

  • Kim, Hye-Jin;Kwak, Keun-Chang;Kim, Do-Hyung;Bae, Kyung-Sook;Yoon, Ho-Sub;Chi, Su-Young
    • 한국HCI학회:학술대회논문집
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    • 2006.02a
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    • pp.148-153
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    • 2006
  • 인간-컴퓨터 상호작용(HCI) 기술은 과거 컴퓨터란 어렵고 소수의 숙련자만이 다루는 것이라는 인식을 바꾸어 놓았다. HCI 는 컴퓨터 사용자인 인간에게 거부감 없이 수용되기 위해 인간과 컴퓨터가 조화를 이루는데 많은 성과를 거두어왔다. 컴퓨터 비전에 기반을 두고 인간과 컴퓨터의 상호작용을 위하여 사용자 의도 및 행위 인식 연구들이 많이 행해져 왔다. 특히 손을 이용한 제스처는 인간과 인간, 인간과 컴퓨터 그리고 최근에 각광받고 있는 인간과 로봇의 상호작용에 중요한 역할을 해오고 있다. 본 논문에서 제안하는 손 추출 및 추적 알고리즘은 비전에 기반한 호출자 인식과 손 추적 알고리즘을 병행한 자연스러운 손 추출 및 추적 알고리즘이다. 인간과 인간 사이의 상호간의 주의집중 방식인 호출 제스처를 인식하여 기반하여 사용자가 인간과 의사소통 하는 것과 마찬가지로 컴퓨터/로봇의 주의집중을 끌도록 하였다. 또한 호출 제스처에 의해서 추출된 손동작을 추적하는 알고리즘을 개발하였다. 호출 제스처는 카메라 앞에 존재할 때 컴퓨터/로봇의 사용자가 자신에게 주의를 끌 수 있는 자연스러운 행동이다. 호출 제스처 인식을 통해 복수의 사람이 존재하는 상황 하에서 또한 원거리에서도 사용자는 자신의 의사를 전달하고자 함을 컴퓨터/로봇에게 알릴 수 있다. 호출 제스처를 이용한 손 추출 방식은 자연스러운 손 추출을 할 수 있도록 한다. 현재까지 알려진 손 추출 방식은 피부색을 이용하고 일정 범위 안에 손이 존재한다는 가정하에 이루어져왔다. 이는 사용자가 제스처를 하기 위해서는 특정 자세로 고정되어 있어야 함을 의미한다. 그러나 호출 제스처를 통해 손을 추출하게 될 경우 서거나 앉거나 심지어 누워있는 상태 등 자연스러운 자세에서 손을 추출할 수 있게 되어 사용자의 불편함을 해소 할 수 있다. 손 추적 알고리즘은 자연스러운 상황에서 획득된 손의 위치 정보를 추적하도록 고안되었다. 제안한 알고리즘은 색깔정보와 모션 정보를 융합하여 손의 위치를 검출한다. 손의 피부색 정보는 신경망으로 다양한 피부색 그룹과 피부색이 아닌 그룹을 학습시켜 얻었다. 손의 모션 정보는 연속 영상에서 프레임간에 일정 수준 이상의 차이를 보이는 영역을 추출하였다. 피부색정보와 모션정보로 융합된 영상에서 블랍 분석을 하고 이를 민쉬프트로 추적하여 손을 추적하였다. 제안된 손 추출 및 추적 방법은 컴퓨터/로봇의 사용자가 인간과 마주하듯 컴퓨터/로봇의 서비스를 받을 수 있도록 하는데 주목적을 두고 있다.

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A Study on the Automation of Deburring Process Using Vision Sensor (비젼 센서를 이용한 디버링 공정의 자동화에 관한 연구)

  • 신상운;갈축석;강근택;안두성
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 1994.10a
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    • pp.553-558
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    • 1994
  • In this paper, we present a new approach for the automation of deburring process. An algorithm for teaching skills of a human expert to a robot manipulator is developed. This approach makes use of TSK fuzzy model that can express a highly nonlinear functional relation with small number of rules. Burr features such as height, width, area, cutting area are extracted from image processing by use of the vision system. Cutting depth, repeative number and normal cutting force are chosen as control signals representing actions of the human expert. It is verified that our processed fuzzy model can accurately express the skills of human experts for the deburring process.

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Cognitive Decision Making Model with Human Sensibility Factors (감성요소를 포함하는 인지적 의사결정 모형)

  • 이구형;김영준
    • Proceedings of the Korean Society for Emotion and Sensibility Conference
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    • 1997.11a
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    • pp.193-198
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    • 1997
  • 고도로 자동화된 시스템에서 인간이 수행하는 작업은 대부분 '감시와 반응'으로 단순화될수 있으며, 시스템에 이상이나 비상사태가 발생되는 경우 이에 대응되는 조치를 취하기 위한 정보처리와 의사결정을 수행하는 인지과정이 중요한 사항이다. 본 연구는 숙련된 작업자가 인지적 의사결정과정에서 잘못된 정보처리를 초래하는 원인으로 감각정보의 잘못된 해석에 있다고 보았으며, 이 과정에 감성의 영향을 도입하였다. 인간감성의 특성은 감각자극에 대하여 반사적이고 직관적으로 발생하며, 개인에 따라 다양함과 함께 애매모호성과 변화성을 가지고 있다. 감성은 두뇌의 limbic systim에 축적된 생활경험의 기억에 의하여 발생되며, 이 후에 발생되는 감정이나 두뇌에서의 정보초리에 영향을 미친다. 감성의 발생과 정보처리 및 의사결정과정에 대한 영향을 모형화하기 위해서는 조종사의 레이더 감시에 대한 인지과정을 정밀하게 기술하였으며, 이 과정에 감성요소를 도입하여 인지모형을 개발하였다.

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A Development of CNC Engraving Machine System for Non-experts (비숙련자를 위한 CNC 조각기 시스템의 개발 방안 연구)

  • Yang, Min Cheol;Chung, Yunchan
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.41 no.7
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    • pp.673-682
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    • 2017
  • As the culture of making things based on "do-it-yourself" (DIY) activity is increasingly promoted, the use of recent digital technologies and tools, including the 3D printer, have become widespread. However, the use of computerized numerical control (CNC) engraving machine is considered difficult because of the complicated procedures and specialized knowledge required for its operation. Therefore, this study aims to resolve the issue that limits the usability of the CNC engraving machine. This paper presents a novel CNC engraving machine system for non-experts based on human-centered design. First, the size and type of the workpiece and tool are reduced. Second, computer-aided process planning (CAPP) steps such as tool path generation, workpiece clamping, and corresponding coordinate system are automated by compromising productivity and efficiency. As a result, a CNC engraving machine system that can be easily used by non-experts was developed. This development has great significance in that it opens up the possibility of using the CNC engraving machine for a wider range of DIY activities.

The Visual Expression Means in Human-Computer Interaction Design (인간-컴퓨터 상호작용 디자인(HCI Design)에서의 시각적 표현수단에 관한 연구)

  • 김명석;유시천
    • Archives of design research
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    • v.9
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    • pp.101-114
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    • 1994
  • This study deals with the issue of actual HCI design embodiment through the investigation on how to interpret and use visual expression means in HCI design in a semantic way. The purpose of this study is to provide the method by which designers can make the user-centered guidelines in HCI design. As a part of the user\ulcornercentered design approaches, this study is based on the understanding of user group types which are divided by his/her extent of exposure to computer especially and is focussed on applying the level of each group's apprehension of visual expression means to the embodiment of HCI design. Major findings of this study are: First, it proposes the 'Visual Tokens Models' as a basic source for the understanding and the embodiment of visual expression means in HCI design; Second, it has examined the correlations between the characteristics of Visual Tokens and user group types that is, naive users, casual users, and expert users; Third, it proposes guidelines for the user-centered embodiment of HCI design in accordance with the correlations.

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University museum and informatization (대학박물관과 정보화)

  • Lee Jeong-Ho
    • KOMUNHWA
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    • no.57
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    • pp.301-314
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    • 2001
  • 1) Traditional university museums use displays and photo collections of antiquities as means for educating present and future generations. But the success in their mission hinges on whether they can induce the gallery to visit the places. Fortunately, sin

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An Unthinking Sage? Plotinus' Model of Non-Deliberative Action (생각하지 않는 현자(賢者)? 플로티누스의 비-숙고적 행동 모델)

  • Song, Euree
    • Journal of Korean Philosophical Society
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    • no.125
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    • pp.63-89
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    • 2019
  • The aim of this paper is to examine the so-called theory of automatic action attributed to Plotinus, according to which the sage can act automatically without deliberation or reasoning. Concerns were raised that such a theory runs the risk of turning the agent into an automaton by reducing action to mechanical reflexes to external stimuli. I attempt to show that Plotinus does not hold a theory of automatic action by arguing that the Plotinian sage's non-deliberative action is not automatic at all. For this purpose, I first draw attention to the non-deliberative action of the World-Reason (i.e. the reason of the World-Soul), which is supposed to present an ideal model of action. Indeed, Plotinus mentions that the World-Reason rules the world "as if automatically". This is, however, meant to indicate the spontaneous and natural manner in which the World-Reason rules. In this respect, the way the World-Reason works is compared to the way nature (i.e. the productive power of the World-Soul) works. But Plotinus points out that the World-Reason knows what to do, whereas nature works without knowing. In this connection, Plotinus makes it clear that the World-Reason does not calculate or deliberate about what to do because it already knows it. To clarify this point, I turn to Plotinus' analogy of practical wisdom (phronêsis) and skill, according to which the World-Reason is compared to an accomplished craftsman or artist, who confidently works without any doubt, hesitation or difficulty, thereby expressing her intelligence, unmediated by deliberation. From this perspective, non-deliberative action according to practical wisdom turns out to be superior to deliberative action. Plotinus admits that there are difficult circumstances in which even the skilled craftsman, unlike the World-Reason who always controls the whole situation, needs to deliberate or calculate, but he is nevertheless confident that the craftsman easily finds the solution. This suggests that the sage, who possesses practical wisdom, can act normally like a great master or virtuoso without deliberation, but in an emergency situation he also employs deliberation, but resourcefully and creatively responds to challenge. The attempt is made to elucidate the Plotinian model of sage's action with the help of Csikzentmihalyi's concept of 'flow' and Annas' application of it to the analogy of virtue and skill. Finally, it is shown that the sage's virtuous action, in spite of being a habituated action, is not a passive, routinized, automatic action, but an active, flexible, intelligent action.

Generation of Building and Contour Layers for Digital Mapping Using LiDAR Data (LiDAR 데이터를 이용한 수치지도의 건물 및 등고선 레이어 생성)

  • Lee Dong-Cheon;Yom Jae-Hong
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.23 no.3
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    • pp.313-322
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    • 2005
  • Rapid advances in technology and changes in human and cultural activities bring about changes to the earth surface in terms of spatial extension as well as time frame of the changes. Such advances introduce shorter updating frequency of maps and geospatial database. To satisfy these requirements, recent research efforts in the geoinformatics field have been focused on the automation and speeding up of the mapping processes which resulted in products such as the digital photogrammetric workstation, GPSIINS, applications of satellite imagery, automatic feature extraction and the LiDAR system. The possibility of automatically extracting buildings and generating contours from airborne LiDAR data has received much attention because LiDAR data produce promising results. However, compared with the manually derived building footprints using traditional photogrammetric process, more investigation and analysis need to be carried out in terms of accuracy and efficiency. On the other hand, generation of the contours with LiDAR data is more efficient and economical in terms of the quality and accuracy. In this study, the effects of various conditions of the pre-processing phase and the subsequent building extraction and contour generation phases for digital mapping have on the accuracy were investigated.

Applications of Artificial Neural Networks for Using High Performance Concrete (고성능 콘크리트의 활용을 위한 신경망의 적용)

  • Yang, Seung-Il;Yoon, Young-Soo;Lee, Seung-Hoon;Kim, Gyu-Dong
    • Journal of the Korean Society of Hazard Mitigation
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    • v.3 no.4 s.11
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    • pp.119-129
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    • 2003
  • Concrete and steel are essential structural materials in the construction. But, concrete, different from steel, consists of many materials and is affected by many factors such as properties of materials, site environmental situations, and skill of constructors. Concrete have two kinds of properties, immediately knowing properties such as slump, air contents and time dependent one like strength. Therefore, concrete mixes depend on experiences of experts. However, at point of time using High Performance Concrete, new method is wanted because of more ingredients like mineral and chemical admixtures and lack of data. Artificial Neural Networks(ANN) are a mimic models of human brain to solve a complex nonlinear problem. They are powerful pattern recognizers and classifiers, also their computing abilities have been proven in the fields of prediction, estimation and pattern recognition. Here, among them, the back propagation network and radial basis function network ate used. Compositions of high-performance concrete mixes are eight components(water, cement, fine aggregate, coarse aggregate, fly ash, silica fume, superplasticizer and air-entrainer). Compressive strength, slump, and air contents are measured. The results show that neural networks are proper tools to minimize the uncertainties of the design of concrete mixtures.

A Case Study on the Human Relation Difficulties of Elementary School Beginning Teachers and the Resolution Strategy in the School (초등학교 초임교사가 학교에서 맺는 인간관계에 대한 어려움과 그 해결전략에 관한 사례연구)

  • Jeon, Sun suk
    • Korean Educational Research Journal
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    • v.41 no.1
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    • pp.25-57
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    • 2020
  • The purpose of this study is to analyze the characteristics of beginning teachers in elementary school as they experience the lifecycle of teachers, to analyze and comprehend the difficulties of these teachers based on their characteristics, and to propose a resolution strategy. The study is intended to assist beginning teachers in adapting well to their work and profession as teachers in order to contribute to the growth in quality of education; it is also intended to prepare beginning teachers to utilize their time in elementary school as a period of self-improvement to become proficient teachers. The difficulties in human relations that beginning teachers experience in school can be divided into three major categories: relations with administrators and fellow teachers, relations with parents of students, and relations with students. The standardized and uniform culture of a school and the administrators and fellow workers imposing such a culture are the reason for the difficulties that beginning teachers face, and the question of what kind of fellow teachers the beginning teachers will encounter in their first school exerts a serious influence on the growth of these teachers, who have just begun their career in education. Furthermore, the lack of skills to discipline students eventually leads beginning teachers to face difficulties in controlling students in the classroom, and the process of encountering and resolving various classroom problems contributes to the growth of teachers' proficiency. Moreover, the attitude of students' parents who behave toward them as novice teachers serves as the reason for beginning teachers to lose their confidence or face difficulties in their careers, and exerts an influence on student counseling and guidance. The resolution strategy that beginning teachers apply as they encounter such problems with the entities in the educational field is as follows: imitation, listening, and accepting the thoughts and to renounce. To resolve the difficulties that beginning teachers experience, it is necessary to allocate space and time to discuss their difficulties and possible plans for resolution during the beginning teachers' training period and initiate a mentoring system in schools. Lastly, it is necessary that the offices of education continuously conduct qualitative research on beginning teachers and publish casebooks on such studies.

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