• Title/Summary/Keyword: way-points

Search Result 1,209, Processing Time 0.031 seconds

Feature Extraction for Endoscopic Image by using the Scale Invariant Feature Transform(SIFT) (SIFT를 이용한 내시경 영상에서의 특징점 추출)

  • Oh, J.S.;Kim, H.C.;Kim, H.R.;Koo, J.M.;Kim, M.G.
    • Proceedings of the KIEE Conference
    • /
    • 2005.10b
    • /
    • pp.6-8
    • /
    • 2005
  • Study that uses geometrical information in computer vision is lively. Problem that should be preceded is matching problem before studying. Feature point should be extracted for well matching. There are a lot of methods that extract feature point from former days are studied. Because problem does not exist algorithm that is applied for all images, it is a hot water. Specially, it is not easy to find feature point in endoscope image. The big problem can not decide easily a point that is predicted feature point as can know even if see endoscope image as eyes. Also, accuracy of matching problem can be decided after number of feature points is enough and also distributed on whole image. In this paper studied algorithm that can apply to endoscope image. SIFT method displayed excellent performance when compared with alternative way (Affine invariant point detector etc.) in general image but SIFT parameter that used in general image can't apply to endoscope image. The gual of this paper is abstraction of feature point on endoscope image that controlled by contrast threshold and curvature threshold among the parameters for applying SIFT method on endoscope image. Studied about method that feature points can have good distribution and control number of feature point than traditional alternative way by controlling the parameters on experiment result.

  • PDF

Safe Climbing Path Planning by Image Processing (영상 처리에 의한 안전한 등반 경로 계획)

  • Yeom, Dong-Hae;Kim, Jong-Sun;Joo, Young-Hoon
    • Journal of the Korean Institute of Intelligent Systems
    • /
    • v.22 no.2
    • /
    • pp.187-191
    • /
    • 2012
  • This paper deals with a safe climbing path planning for unmanned automatic vehicles. Unlike the existing path planning schemes, the safety is the highest priority for our approach. To achieve this, the global potential field which includes a dangerous zone as well a given terrain information is generated, and the way-points are determined by using image processing such as the erosion operation. The proposed method can reduce the computation effort and the amount of information, and provide the safe climbing path which is similar to human's intuition.

A Case Study on Strategic Shift from Smart-Work to Work-Smart of Company K

  • Kang, Yong-Sik;Kwon, Sun-Dong;Woo, Su-Han
    • Journal of Information Technology Applications and Management
    • /
    • v.25 no.3
    • /
    • pp.55-66
    • /
    • 2018
  • Early smart-work of company K was a technology-led way of applying ICT such as smart phones and mobile devices to business. After company K perceived the limitations of ICT-driven smart work, it propelled the work-smart, doing a work smart toward the way that human beings become central and a creative organizational culture is engendered. Company K propelled work-smart strategy in eight categories: simplification of data requirements, establishment efficient meeting culture, streamlining reporting and approval process, simplified document creation, overtime decrease, spreading flexible work system, settlement of healing leave, creating work-smart place. Company K set up an organizational culture secretariat dedicated to work-smart promotion and selected task priorities in consideration of urgency and effectiveness. Owing to such efforts, the company K's work-smart index rose sharply to 72 points this year from 56 points in the previous year. At the organizational culture survey, employees responded that organizational culture improved in all area. For a better future, company K analyzed its work-smart outcomes and planned progressively to improve its work-smart efforts based on employees opinions. This case study will serve as a guideline, for companies to make efforts to going forward to today work-smart beyond yesterday smart-work.

Renovation of Korean Geodetic Control Points

  • Choi, Yun-Soo;Kwon, Jay-Hyoun;Hong, Chang-Ki;Lee, Ji-Sun
    • Spatial Information Research
    • /
    • v.16 no.4
    • /
    • pp.401-410
    • /
    • 2008
  • In this contribution, the renovation of the Korean geodetic control points is introduced. The renovation is described in terms of structure and accuracy. Mainly the establishment of the three-dimensional control points is the renovation on structure which leads many changes in accuracy, contents and hierarchy of the control points. The accuracy of the information is being improved based on the satellite positioning technology and precision geoid being developed. Diverse spatial information such as gravity and environmental elements are considered to be measured at the position of the control points so that the related research is enhanced through the analysis of combined information. In addition, an access to the information of control points and service to the public with spatial information will be faster and more efficient through RFID and CDMA communication. With all these efforts being made currently, the Korean geodetic network will provide the most accurate and diverse spatial information in an efficient way. We hope that these activities lead the trends, roles, and future direction of the geodetic control points.

  • PDF

Efficient Image Warping Mechanism Using Template Matching and Partial Warping (템플릿 매칭과 부분 워핑을 이용한 효율적인 원근 영상 워핑 기법)

  • Jeong, Dae-Heon;Cho, Tai-Hoon
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
    • /
    • 2017.05a
    • /
    • pp.339-342
    • /
    • 2017
  • Geometric transform of an image is used to image correction. Ridid-Body, Simlilary transform, etc, many correction methods are exist in computer vision. Image warping is used to correction for image with perspective. To image warping I extracted 4 feature point about warping position. But It is difficult to extract 4 points accurately and warping result with these point is occurs error over 3 or 4 pixel at warping position. So I used template matching to extract 4 points correctly and selected repeatedly 2 points of 4 points because to confirm result correctly. positions of 2 points are changed in near of 3 by 3 pixel and warped each change. So I selected optimal 4 points with a error of less than 1 pixel and finally, warped image using optimal points. For this way is possible to obtain optimum result.

  • PDF

The Effects of Resilience and Personality Types on Major Satisfaction of Nursing Students (간호대학생의 회복 탄력성과 성격유형이 전공만족도에 미치는 영향)

  • Lee, Jae Kyeum;Kim, Won Jong
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.22 no.6
    • /
    • pp.100-107
    • /
    • 2021
  • This study was a descriptive research to investigate the effects of resilience and personality types on the major satisfaction of nursing students. The participants of this study were nursing students who were attending two universities in D city. Data collection was conducted from September 8 to October 6, 2020. The SPSS/WIN 26.0 program was used for data analysis. Frequency and percentage, mean and standard deviation, Pearson's correlation, independent sample t-test, one-way ANOVA, and multiple regression were used for analysis. The results of this study showed that the average recovery elasticity of nursing students was 3.50 points (5 points), personality type was 2.28 points (4 points), and major satisfaction was 3.12 points (5 points). Personality type A was found in 122 people and personality type B in 136 people. It was found that there was a positive correlation between resilience and major satisfaction, which indicates that the higher the resilience, the higher the major satisfaction. The major satisfaction of nursing students was found to be a significant factor influencing college life satisfaction and human relationships in personality type A, showing 46.2% explanatory power. In personality type B, it was found to be a significant influencing factor in grade and human relationships, showing 42.5% explanatory power. From the above study results, it can be inferred that the development of a college application program that can improve human relationships and increase resilience in college life is required to inspire major satisfaction.

A Study on an Integral State Feedback Controller for Way-point Tracking of an AUV (무인잠수정의 적분 상태 궤환 제어기 설계 및 경유점 추적 연구)

  • Bae, Seol B.;Shin, Dong H.;Park, Sang H.;Joo, Moon G.
    • Journal of Institute of Control, Robotics and Systems
    • /
    • v.19 no.8
    • /
    • pp.661-666
    • /
    • 2013
  • A state feedback controller with integration of output error is proposed for way-point tracking of an AUV (Autonomous Underwater Vehicle). For the steering control on the XY plane, the proposed controller uses three state variables (sway velocity, yaw rate, heading angle) and the integral of the steering error, and for the depth control on the XZ plane, it uses four state variables (pitch rate, depth, pitch angle) and the integral of the depth error. From the simulation using Matlab/Simulink, we verify that the performance of the proposed controller is satisfactory within an error range of 1m from the target way-point for arbitrarily chosen sets of consecutive way-points.

The Design of Monitoring System to Optimize Points Inspection Intervals (선로전환기 점검주기 최적화를 위한 모니터링시스템 설계)

  • Lim, In-Taek;Park, Jae-Young
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.14 no.7
    • /
    • pp.3444-3449
    • /
    • 2013
  • The control module controlling points has become high-tech. but the introduction of relevant company's inspection intervals and methods, and the adoption of the way which is used in relay interlock system became the cause of a failure by excessive and incorrect maintenance. The Human error in failure recovery process can cause vital accidents including train derailment, the points monitoring system could prevent this problem by monitoring points' operation condition in real time. After conducting the changed inspection intervals that applied the results of the criticality of each failure type, MTBF, MTTR, availability, maintainer's opinion, the work became simplified, and, the failure did not occur for 4 consecutive years in contrast to the previous annual average of 11 failures.

Knowledge and Attitude for Breast Feeding of Middle School Students (중학생의 모유수유에 대한 지식 및 태도)

  • Cho, Eun A
    • Journal of the Korean Society of School Health
    • /
    • v.27 no.2
    • /
    • pp.69-79
    • /
    • 2014
  • Purpose: The purpose of this study was to evaluate middle school students' knowledge and attitudes related to breast feeding. Methods: The knowledge and attitudes related to breast feeding were measured by structured questionnaires. Data were analyzed by descriptive statistics, t-test, one-way ANOVA, and Pearson correlation, using the SPSS/WIN 17.0 program. Results: The level of knowledge of breast feeding was 9.02 points out of 25 points, in average. Attitudes towards breast feeding was 3.77 points out of 5 points, in average. There were significant differences in the knowledge of breast feeding according to grade, feeding type, family type, experiences of observing breast feeding, experiences of obtaining breast feeding information, will to practice breast feeding, and the reasons for low breast feeding rate. There were significant differences in attitudes towards breast feeding according to gender, grade, feeding type, family type, experiences of observing breast feeding, experiences of obtaining breast feeding information, timing of breast feeding education, will to practice breast feeding, and the reasons for low breast feeding rate. There was a significant positive correlation between the knowledge of breast feeding and attitudes towards breast feeding. Conclusion: Middle school students should be provided with various education programs to improve their knowledge of and attitudes toward breast feeding.

Swerve, Trope, Peripety: Turning Points in Criticism and Theory

  • Tally, Robert T. Jr.
    • Journal of English Language & Literature
    • /
    • v.64 no.1
    • /
    • pp.25-37
    • /
    • 2018
  • The turning point is one of the more evocative concepts in the critic's arsenal, as it is equally suited to the evaluation and analysis of a given moment in one's day as to those of a historical event. But how does one recognize a turning point? As we find ourselves always "in the middest," both spatially and temporally, we inhabit sites that may be points at which many things may be seen to turn. Indeed, it is usually only possible to identify a turning point, as it were, from a distance, from the remove of space and time which allows for a sense of recognition, based in part on original context and in part of perceived effects. In this article, Robert T. Tally Jr. argues that the apprehension and interpretation of a turning point involves a fundamentally critical activity. Examining three models by which to understand the concept of the turning point-the swerve, the trope, and peripety (or the dialectical reversal)-Tally demonstrates how each represents a different way of seeing the turning point and its effects. Thus, the swerve is associated with a point of departure for a critical project; the trope is connected to continuous and sustained critical activity in the moment, and peripety enables a retrospective vision that, in turn, inform future research. Tally argues for the significance of the turning point in literary and cultural theory, and concludes that the identification, analysis, and interpretation of turning points is crucial to the project of criticism today.