• Title/Summary/Keyword: Human dimension

Search Result 486, Processing Time 0.027 seconds

Back-Propagation Neural Network Based Face Detection and Pose Estimation (오류-역전파 신경망 기반의 얼굴 검출 및 포즈 추정)

  • Lee, Jae-Hoon;Jun, In-Ja;Lee, Jung-Hoon;Rhee, Phill-Kyu
    • The KIPS Transactions:PartB
    • /
    • v.9B no.6
    • /
    • pp.853-862
    • /
    • 2002
  • Face Detection can be defined as follows : Given a digitalized arbitrary or image sequence, the goal of face detection is to determine whether or not there is any human face in the image, and if present, return its location, direction, size, and so on. This technique is based on many applications such face recognition facial expression, head gesture and so on, and is one of important qualify factors. But face in an given image is considerably difficult because facial expression, pose, facial size, light conditions and so on change the overall appearance of faces, thereby making it difficult to detect them rapidly and exactly. Therefore, this paper proposes fast and exact face detection which overcomes some restrictions by using neural network. The proposed system can be face detection irrelevant to facial expression, background and pose rapidily. For this. face detection is performed by neural network and detection response time is shortened by reducing search region and decreasing calculation time of neural network. Reduced search region is accomplished by using skin color segment and frame difference. And neural network calculation time is decreased by reducing input vector sire of neural network. Principle Component Analysis (PCA) can reduce the dimension of data. Also, pose estimates in extracted facial image and eye region is located. This result enables to us more informations about face. The experiment measured success rate and process time using the Squared Mahalanobis distance. Both of still images and sequence images was experimented and in case of skin color segment, the result shows different success rate whether or not camera setting. Pose estimation experiments was carried out under same conditions and existence or nonexistence glasses shows different result in eye region detection. The experiment results show satisfactory detection rate and process time for real time system.

An Experimental Research on the Usability of Indirect Control using Finger Gesture Interaction in Three Dimensional Space (3차원 공간에서 손가락 제스쳐 인터랙션을 이용한 간접제어의 사용성에 관한 실험연구)

  • Ham, Kyung Sun;Lee, Dahye;Hong, Hee Jung;Park, Sungjae;Kim, Jinwoo
    • The Journal of the Korea Contents Association
    • /
    • v.14 no.11
    • /
    • pp.519-532
    • /
    • 2014
  • The emerging technologies for the natural computer interaction can give manufacturers new opportunities of product innovation. This paper is the study on a method of human communication about a finger gestures interaction. As technological advance has been so rapid over the last few decades, the utilizing products or services will be soon popular. The purpose of this experiment are as follows; What is the usefulness of gesture interaction? What is the cognitive impact on gesture interaction users. The finger gestures interaction consist of poking, picking and grasping. By measuring each usability in 2D and 3D space, this study shows the effect of finger gestures interaction. The 2D and 3D experimental tool is developed by using LeapMotion technology. As a results, the experiments involved 48 subjects shows that there is no difference in usability between the gestures in 2D space but in 3D space, the meaningful difference has been found. In addition, all gestures express good usability in 2D space rather than 3D space. Especially, there are the attractive interest that using uni-finger is better than multi-fingers.

High-$T_c$ 2nd-order SQUID Gradiometer for Use in Unshielded Environments (비차폐 환경에서의 고온초전도 SQUID 2차 미분기의 특성연구)

  • 박승문;강찬석;이순걸;유권규;김인선;박용기
    • Progress in Superconductivity
    • /
    • v.5 no.1
    • /
    • pp.50-54
    • /
    • 2003
  • We have fabricated $∂^2$$B_{z}$ /$∂x^2$ type planar gradiometers and studied their properties in operation under various field conditions. $YBa_2$$Cu_3$$O_{7}$ film was deposited on $SrTiO_3$ (100) substrate by a pulsed laser deposition (PLD) system and patterned into a device by the photolithography with ion milling technique. The device consists of 3 pickup loops designed symmetrically Inner dimension and the width of the square side loops are 3.6 mm and 1.2 mm, respectively, and the corresponding dimensions of the center loop are 2.0 mm and 1.13 mm. The length of baseline gradiometer is 5.8 mm. Step-edge junction width is 3.0 $\mu\textrm{m}$ and the hole size of the SQUID loop is 3 $\mu\textrm{m}$ ${\times}$ 52 $\mu\textrm{m}$. The SQUID inductance is estimated to be 35 pH. The device was formed on a 20 mm ${\times}$ 10 mm substrate. We have tested the behavior of the device in various field conditions. The unshielded gradiometer was stable under extremely hostile conditions on a laboratory bench. Noise level 0.45 pT/$\textrm{cm}^2$/(equation omitted)Hz and 0.84 pT/$\textrm{cm}^2$/(equation omitted)Hz at 1 Hz for the shielded and the unshielded cases, which correspond to equivalent field noises of 150 fT/(equation omitted)Hz and 280 fT/(equation omitted)Hz, respectively. In spite of the short baseline of 5.8 mm, the high common-mode-rejection-ratio of the gradiometer, $10^3$, allowed us to successfully record magnetocardiogram of a human subject, which demonstrates the feasibility of the design in biomagnetic studies.

  • PDF

A Study on the Correlation of Factors in 3-D Stereoscopic Visual-perception (3차원 입체영상에서 시지각(時知覺) 요인의 상관관계)

  • Cho, Yong-Keun
    • Cartoon and Animation Studies
    • /
    • s.19
    • /
    • pp.161-181
    • /
    • 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.

  • PDF

Analysis of Impact Factors of Affective Commitment in Organization of Dental Hygienist in Susan Area -Focused on Quality of Working Life(QWL)- (부산권 치과위생사의 정서적 조직몰입 영향 요인 분석 -근로생활의 질을 중심으로-)

  • Kwon, Su-Jin;Bae, Sung-Kwon
    • The Journal of the Korea Contents Association
    • /
    • v.9 no.5
    • /
    • pp.156-165
    • /
    • 2009
  • This research is for dental hygienists to pursue affection and commitment in organization together with improvement of quality of working life by analyzing factors of working life affecting affective commitment in organization of dental hygienists, to find out plans to increase sense of accomplishments of working life and ultimate satisfaction of life, and to suggest direction for human resources management in management of dental clinics. Objects of investigation were dental hygienists working at dental medical institutions in Busan area with questionnaire survey and 197 sheets of questionnaires were used in the study. As the result of the study, high correlation was shown between composition elements of quality of working life and affective commitment per factor and as the result of quality factors of working life affecting affective commitment in organization, work environment, inter-personal relations, and social meaningfulness provided meaningful impacts on affective commitment in organization. It is believed to be important that dental medical institutions need to promote pride and love of companies in the future by providing regular social services or services for local residents so that employees can form smooth inter-personal relationships among employees with improvement of working environment and welfare in personnel management dimension. And for dental hygienists, they shall improve their work performances and enhance vocational values for development of their institutions and them with positive thinking through ceaseless efforts.

The Impact of Humane Entrepreneurship on Business Ecosystem and Economic Development (인간중심 기업가정신이 비즈니스 생태계와 경제개발에 미치는 영향)

  • Kim, Yong Jin;Kim, Ki-Chan;Song, Chang Seok;Kang, Myung Soo
    • The Journal of Small Business Innovation
    • /
    • v.20 no.4
    • /
    • pp.3-10
    • /
    • 2018
  • With the advancement in digital transformation with smart technologies and the collapse of industry borders, increasing is the importance of understanding customer problems, fostering employee capabilities, and enhancing the partner capabilities to properly provide the best service to customers. This is what is called the humane entrepreneurship in the 4th Industrial Revolution. Humane entrepreneurship is believed to play a critical role in developing business ecosystems and thus economic growth of nations. We empirically tested the ideas that 1) entrepreneurship as a meta-structuring action shape the healthiness of business ecosystem and 2) subsequently both entrepreneurship and business ecosystems affect economic development of a country. The results indicate that humane entrepreneurship does not directly affect healthiness of business ecosystem, but the balanced humane entrepreneurship together with opportunity in business ecosystems has a positive relationship with GDP growth. In other words, opportunity can be appropriated by entrepreneurs who have balanced sense between human and enterprise dimension. Data collection and methodologies are discussed further in the paper.

  • PDF

Effect of occlusal balance on center of gravity in body (교합균형이 자세 중심(重心)에 미치는 영향에 관한 연구)

  • Lee, Yun;Choi, Dae-Kyun;Lee, Sung-Bok
    • Journal of Dental Rehabilitation and Applied Science
    • /
    • v.19 no.2
    • /
    • pp.57-67
    • /
    • 2003
  • Suppose that dental occlusion is related to body posture. We want to find out that improving occlusal balance may affect vibration and distribution of C.O.P. in which way, by measuring change of posture and center of gravity (center of pressure, C.O.P.) which plays important role in measuring balance sensation. Total 11 students at Kyung Hee dental college students, 4 females and 9 males (age: 23-30) participated in this test, who have normal occlusion (Angle's classification I), no TMJ problems. All of the participants have no tooth loss except 3rd molar, no prosthesis over single tooth restoration, no orthopedic problems which affect balance sensation, and no otorhinolaryngological problems. First, we registrated bite by centric relation, and then fabricated stabilization splint that is increased 3.5mm vertical dimension around premolar region. By F-scan (Tekscan Inc., Boston, Mass), we measured discrepancy of average contact pressure of left and right foot. And we also measured discrepancy of vibration of C.O.P(center of pressure). before setting stabilization splint and after wearing stabilization splint at intervals of 1 week, 2 weeks, 3 weeks after. In normal human beings, improved occlusal balance by stabilization splint leads to decrease of vibration of C.O.P. (P<0.05). One week after wearing stabilization splint, vibration of C.O.P. decreased reliably (P<0.05), two weeks after wearing stabilization splint, vibration of C.O.P. decreased similarly comparing to before wearing and one week after wearing. (P<0.05) After two weeks and three weeks, however, it was hard to find reliability. (P>0.05) Difference between average contact pressure of right and left foot also decreased. (P<0.05) We could find decrease after one week of wearing stabilization splint (P<0.05) and two weeks after, the decrease was more reliable than one week after. (P<0.05) After two weeks and three weeks, however, it was hard to find reliability. Improvement of occlusal balance leads to decrease of vibration of C.O.P. and decrease of difference between right and left average contact pressure.

A Study on the Structure and Characteristics of the Utilization Support Systems(USS) to Aid the Use of Social Welfare Services in Japan's Social Welfare Systems (일본의 사회복지체제에 있어서 사회복지서비스에 대한 이용지원체제의 구조와 특징에 관한 연구)

  • Chung, Jae-Wook
    • Korean Journal of Social Welfare
    • /
    • v.57 no.1
    • /
    • pp.121-146
    • /
    • 2005
  • The purpose of this paper is to analyze the structure and characteristics of the utilization support systems(USS), which has been institutionalized to aid the use of social welfare services in Japan's social welfare systems recently. In order to conduct such purposes, this paper made the process as follows. Firstly, this paper examined the developmental processes of social welfare systems, and the back ground of institutionalization of USS in Japan. Secondly, this paper formulated at ideal dimension the analytic model which was to explain the structure and characteristics of the USS. To build this model, this paper used two factors which were the connective dependency to the welfare support systems and the feasible-satisfying alternative setting for user. Thirdly, this paper analyzed the characteristics of the user-driven support facilities which has already activated in social welfare systems in Japan. According to the result of analyzing such model, this paper explained that USS in Japan has possessed the structure and characteristics, such as to aid self actualization and human right of user, to compose the inner coalition organization with supply systems, to emphasize the employee to train care management's skill, and to keep up bounded openness to USS's participation. Therefore, oligopoly market is formulated owing to bounded openness in the field of USS and the role of social worker such as a care manager is emphasized on making care plan.

  • PDF

The Study on the Relationships between Team Leader's Emotional Intelligence and Subordinate's Organizational Attitude, Behavior Focused on Examining the Mediated Effect of Leader Trust (상사신뢰의 매개효과에 따른 팀장의 감성지능이 부하의 태도 및 행동에 미치는 영향력 분석)

  • Kim, Sung-Eun
    • Management & Information Systems Review
    • /
    • v.31 no.2
    • /
    • pp.199-230
    • /
    • 2012
  • This study introduced trust dimension as a mediating variable and analyzed in order to investigate the empirical mechanism on the process of leader's emotional intelligence which is a emotional factor to produce organizational effectiveness. Based on the empirical analysis, first of all, this study found whether the team leader's emotional intelligence gives an influence on the subordinate's trust in leader. Secondly, this study examined the multidimensionality of trust by selecting subordinate's cognition-based trust and affect-based trust on the team leader as mediating variables between team leaders's emotional intelligence and subordinate's affective commitment, organizational citizenship behavior. I found the theoretical implications based on this study; first, from the view on cognition-based and emotion-based trust, the integrated verification of the process of the trust in leader as a mediating role, second, verification of the relationship between leader's emotional intelligence and trust in leader which was not studied before, third, the methodological try to prevent from the common method bias problem through the evaluation of a team leader on a subordinate's organizational citizenship behavior. This study also suggested the ways to apply those theoretical implications to human resource management.

  • PDF

Evaluating and Improving Urban Resilience to Climate Change in Local Government: Focused on Suwon (기초지자체 기후변화 대응을 위한 도시회복력 평가 및 증진방안: 수원시를 대상으로)

  • Kim, Eunyoung;Jung, Kyungmin;Song, Wonkyong
    • Journal of Environmental Impact Assessment
    • /
    • v.27 no.4
    • /
    • pp.335-344
    • /
    • 2018
  • As the damage caused by the abnormal climate due to climate change is increasing, the interest in resilience is increasing as a countermeasure to this. In this study, the resilience of Suwon city was examined and the plan to improve the resilience were derived against climate impacts such as drought, heatwave, and heavy rain. Urban resilience is divided into social resilience (e.g. vulnerable groups, access to health services, and training of human resources), economic resilience (e.g. housing stability, employment stability, income equality, and economic diversity), urban infrastructure resilience (e.g.residential vulnerability, capacity to accommodate victims, and sewage systems), and ecological resilience (e.g. protection resources, sustainability, and risk exposure). The study evaluated the urban resilience according to the selected indicators in local level. In this study, the planning elements to increase the resilience in the urban dimension were derived and suggested the applicability. To be a resilient city, the concept and value of resilience should be included in urban policy and planning. It is critical to monitor and evaluate the process made by the actions in order to continuously adjust the plans.