• 제목/요약/키워드: Characteristic of task

검색결과 238건 처리시간 0.027초

화상처리를 이용한 동작분석 시스템에 관한 연구 (Motion analysis system using image processing)

  • 박경수;반영환;이안재;임창주;오인석;이현철
    • 대한인간공학회지
    • /
    • 제16권3호
    • /
    • pp.71-75
    • /
    • 1997
  • This paper presents the development of videobased 3-dimensional tracking system. Measurement of human motion is important in the application of ertonomics. The system uses advanced direct video measurement technology. Passive retro-reflecting markers are attached to a subject and movements of markers are observed by two CCD cameras. Infrared light emitted near the CCD cameras is reflected by the markers and is detected by the cameras. The images are captured by Samsung MVB302 board and the centers of markers are calculated by DSP program. The positions of markers are transferred from MVB02 board to the computer through AT bus. The computer then tracks the position of each marker and saves the data. This system has dynamic accuracy with 0.7% average error and 4.2% maximum error, and the sampling rate to 6 .approx. 10 Hz, and this system can analyse the trajectory and speed of the marker. The results of this study can be used for operator's motion analysis, task analysis, and hand movement characteristic analysis.

  • PDF

제품규격 작성방법에 관한 연구 -품질기능전개기법적용중심으로- (A Study for the Establishing Method of Product Standard - Mainly for the Quality Function Development -)

  • 한정오
    • 산업경영시스템학회지
    • /
    • 제15권26호
    • /
    • pp.49-58
    • /
    • 1992
  • It is the greatest task to prescribe accurately and concretely consumer's needs of qualities into the product standards in an enterprise manufacturing and sailing products, From this point of view, Quality Function Deployment system is introduced to inguire into the establishing method of product standards closely Above all, the decision of quality characteristic in the product standards and the estblishing method of product standard are introduced to satisty in this repord. Applying to the product standards in Qulity Function Deployment system, frst it is systematically brought quality function to consumer's needs of qualities into the products. Second the method is concerned with quality function assurance applied in induction of product quality. Also it is available to establish method of product quality level in almost every company.

  • PDF

Weather Prediction Using Artificial Neural Network

  • Ahmad, Abdul-Manan;Chuan, Chia-Su;Fatimah Mohamad
    • 대한전자공학회:학술대회논문집
    • /
    • 대한전자공학회 2002년도 ITC-CSCC -1
    • /
    • pp.262-264
    • /
    • 2002
  • The characteristic features of Malaysia's climate is has stable temperature, with high humidity and copious rainfall. Weather forecasting is an important task in Malaysia as it could affetcs man irrespective of mans job, lifestyle and activities especially in the agriculture. In Malaysia, numerical method is the common used method to forecast weather which involves a complex of mathematical computing. The models used in forecasting are supplied by other counties such as Europe and Japan. The goal of this project is to forecast weather using another technology known as artificial neural network. This system is capable to learn the pattern of rainfall in order to produce a precise forecasting result. The supervised learning technique is used in the loaming process.

  • PDF

영상을 이용한 3차원 위치 추적 시스템 개발1 (Video-based 3-dimensional tracking system)

  • 박경수;반영환;이안재;임창주
    • 대한인간공학회:학술대회논문집
    • /
    • 대한인간공학회 1996년도 추계학술대회논문집
    • /
    • pp.160-165
    • /
    • 1996
  • This paper presents the development of video-based 3-dimensional tracking system. Measurement of human motion is important in the application of ergonomics. The system uses advanced direct video measurement technology. Passive retro-reflecting markers are attached to a subject and movements of markers are observed by two CCD cameras. Infrared light emitted near the CCD cameras is reflected by the markers and is detected by the cameras. The image ae captured by Samsung MVBO2 board and the center of markers is calculated by DSP program. The position of markers are transferred from MVB02 board to the computer through AT bus. The computer then tracks the position of each marker and saves the data. This system has dynamic accuracy with 1% error and the sampling rate to 6-10 Hz, and can analyse the trajectory and speed of the marker. The results of this study can be used for operators motion analysis, task analysis, and hand movement characteristic analysis.

  • PDF

중국소수민족 포의 연구 (A Study on Pao, A Caftan type Subculture Garment in China Nationality)

  • 정은택;박춘순
    • 복식
    • /
    • 제50권6호
    • /
    • pp.155-162
    • /
    • 2000
  • Classifying the diverse and complex clothing category of nationality subcultures in China is not a simple task. However, summing up, it can be largely classified that clothing of the northern area is long trousers and short skirt. Among the clothing of Nationality in China, especially, Pao(robe: 袍) has its diversity and colorfulness. whose elements forming its each characteristic feature has enough value to be investigated fully in the historical point of view. The conclusions of this study reveals that Pao in nationality subculture in China can possibly be divided into the four types as Qipao(旗袍) in Dongpei area, Mongopao(蒙古袍) in Inner Mongolia, Qiapan in Xinjiang area, and Zangpao in Tibet area. The modes of Qipao and Mongopao are mainly similar in that they have diagonally on the right, stand collar in composition, but Qipao shows its diversity in collar and slashes, and Mongopao also shows diversity in its colare and waistband. Since western culture flowed into China along with its open door and reform policy, the splendid color and distinctive pattern, decoration, diversified method of compositions and clothing categories of Nationality cultures are disappearing in its their originality and nationality.

  • PDF

Suzhou Historical Gardens and City′s Sustainable Development

  • Huang, We
    • Journal of the Korean Institute of Landscape Architecture International Edition
    • /
    • 제1호
    • /
    • pp.127-130
    • /
    • 2001
  • Suzhou historic gardens include classical gardens, places of interest and palaces built by hills and waters. They are geographically distributed in the ancient city and the suburbs. Considered as both chinese and world class historic cultural heritage, these precious tourist resources have been included in the systematic urban planning of Suzhou and they are an integral part of the urban green plan and symbol and characteristic of the urban view. These gardens are also important for tourist industry-one of the pillar industries Suzhou. Therefore, historic gardens play an especially important role in the city's continuous development and it becomes an important task to make good protection, planning, construction and management of these historic gardens.

  • PDF

Development of an evaluation tool model for the effective measurement of cyber motion sickness in immersive virtual reality

  • Kim Seung Uk
    • International Journal of Advanced Culture Technology
    • /
    • 제12권2호
    • /
    • pp.345-352
    • /
    • 2024
  • We are designed to solve cyber motion sickness, an important task that must be addressed for the growth of the virtual reality content industry. Not only the industry but also academia are paying a lot of attention. However, despite long interest and research on the phenomenon of cyber motion sickness, a solution has not been drawn. This is deeply related to the lack of tools that can effectively measure cyber motion sickness. Therefore, in this paper, prior studies on cyber motion sickness were analyzed to develop a tool that can effectively measure cyber motion sickness when users experience immersive virtual reality. The measurement method of cyber motion sickness used in previous studies, each characteristic and limitation, and common factors related to cyber motion sickness were analyzed. Each of the related factors was derived as sub-factors. Based on the analyzed contents, an effective cyber motion sickness measurement evaluation tool model in immersive virtual reality was presented. It is expected that the evaluation tool model can be used for the study of cyber motion sickness.

비영역적 업무공간의 사용자 의식에 관한 연구 (A Study on User Awareness regarding Non-Territorial Workplaces)

  • 조지연;박영기
    • 한국실내디자인학회논문집
    • /
    • 제13권6호
    • /
    • pp.196-204
    • /
    • 2004
  • Non-territorial workplace has different characteristic from conventional workplace in terms of interior and architectural design and organization management even the user awareness. The purpose of this study is to examine the non-territorial workplace and suggest needs for improving the quality and efficiency of work. To fulfill this task, information describing various environmental conditions and user awareness were gathered from the non-territorial office in Seoul. Data were collected by using questionnaires regarding general information of user and satisfaction of environmental elements that were established on pre-study. Finally, based on the results of this study, the users of non-territorial workplace seem to be satisfied with utilization of space and working but discontent with psychological element such as privacy, security and affinity. Therefore designers should focused more on psychological elements according to users awareness which is the finding in this study among other elements.

중년기 전업주부의 생활진단 척도개발 (Development of Life-Scale for Middle Aged full time homemakers)

  • 지영숙;이광자;곽소현
    • 가족자원경영과 정책
    • /
    • 제7권1호
    • /
    • pp.23-39
    • /
    • 2003
  • The purpose of this study is to develop the life scale of the middle aged homemakers. The life scale are composed of spouse relation 8 items, child education relation 7 items, home economy relation 4 items, homework relation 3 items, selfish health relation 6 items, parent relation 3 items, and interest and social activity relation 4 items. The reliability coefficient of the development scale was Cronbach'α =.83 and the correlations of each demesne was high. For the better future life in this study, the middle aged homemakers are needed the improvement of conjugal relations, the child education, the health, the interest, and the enlargement of social relations. This life scale can help to evaluate their middle age, and to the planning of energetic healthful future, and useful to understanding characteristic and the developmental task of middle aged homemakers.

  • PDF

최적화용 신경망의 성능개선을 위한 새로운 최적화 기법 (A new optimization method for improving the performance of neural networks for optimization)

  • 조영현
    • 전자공학회논문지C
    • /
    • 제34C권12호
    • /
    • pp.61-69
    • /
    • 1997
  • This paper proposes a new method for improving the performances of the neural network for optimization using a hyubrid of gradient descent method and dynamic tunneling system. The update rule of gradient descent method, which has the fast convergence characteristic, is applied for high-speed optimization. The update rule of dynamic tunneling system, which is the deterministic method with a tunneling phenomenon, is applied for global optimization. Having converged to the for escaping the local minima by applying the dynamic tunneling system. The proposed method has been applied to the travelling salesman problems and the optimal task partition problems to evaluate to that of hopfield model using the update rule of gradient descent method.

  • PDF