• Title/Summary/Keyword: 루카스

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On the construction of a new topological network using Lucas-Padovan sequence (루카스-파도반 수열을 이용한 새로운 위상적 네트워크 구축)

  • Gwangyeon Lee;Jinsoo Kim;Kisoeb Park;Moonseong Kim
    • Journal of Internet Computing and Services
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    • v.24 no.1
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    • pp.27-37
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    • 2023
  • In this paper, we define a new Lucas-Padoovan sequence using the Padovan sequence, and a new topological interconnection network is constructed using it. Coding nonnegative integers using subsequences of the Lucas-Padovan sequence, and using this to construct a new Lucas-Padovan cubes to deal with topological properties.

Handled in real-time tracking of moving object occlusion (가림현상에 대처한 실시간 이동 물체 추적)

  • Kim, Hag-Hee;Yun, Han-Kyung
    • The Journal of Korea Institute of Information, Electronics, and Communication Technology
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    • v.4 no.3
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    • pp.158-166
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    • 2011
  • Generally, moving object tracking used Lucas-Kanade feature tracking method which is strong in movement, rotation and size. But this method is very weak of occlusion by background or another object and so on. In this case, this method tracks backgrounds or another objects instead a moving object, or a tracking is finished. In order to solve this problem, we proposes Lucas-Kanade feature tracking method which introduce a destimation function and prediction function.

Godel's Theorem and Mind as Turing Machine (튜링 기계로서의 마음과 괴델의 정리)

  • HwanSunwoo
    • Korean Journal of Cognitive Science
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    • v.6 no.3
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    • pp.5-23
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    • 1995
  • According to a well-known argument (so-called the Godelian argument) proposed by Lucas. Godel's theorem refutes the thesis of mechanism. that is, the thesis that human cognitive system is no more than a Turing machine. The main aim of this paper is to show that this argument is not successful. However. I also argue that many pre-existing objections (by Benacerraf, Slezak. Boyer. Hofstadter etc.) to Gooelian argument are not satisfactory. either. Using Tarski's theorem. I then strengthen what I caII the consistency objection to Godelian argument. In my dilemma objection obtained. Godelian argument doesn't work because the argument has a false premise if we have the concept of global truth and the argument cannot be stated if not.

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Comparison of chest compression and ventilation volume using LUCAS and manual in virtual reality-based ambulance simulation -A manikin study- (가상실현 기반 구급차에서 루카스와 수기에 의한 가슴압박과 인공호흡 비교 -마네킨 연구-)

  • Lee, Jae-Gook;Kim, Jin-Su;Roh, Sang-Gyun
    • The Korean Journal of Emergency Medical Services
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    • v.22 no.3
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    • pp.67-76
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    • 2018
  • Purpose: The purpose of this study was to evaluate the quality of chest compressions and ventilation when using an mechanical device(LUCAS) and 2-men manual cardiopulmonary resuscitation(CPR) performed on a minikin, as well as to propose a more effective CPR method during transit. Methods: Data were collected by LUCAS and manual virtual reality based ambulance simulation. Analysis was performed using SPSS software 12.0. The average and standard deviation of chest compression depth and ventilation were analyzed using descriptive statistics and t-test. Results: In the virtual reality based LUCAS and manual CPR results, LUCAS showed better chest compression and lower incomplete chest release than manual CPR. During CPR with a chest compression-ventilation ratio of 30:2 in virtual reality ventilation with bag-valve mask was able to deliver an adequate volume of breathing. Conclusion: It is suggested that rescuers on ambulance may consider using LUCAS as an alternative to high-quality chest compression during transit.

Go down, Moses: The New Possibility of Lucas Beauchamp as a Mulatto Hero (『내려가라, 모세여』(Go Down, Moses): 루카스 보챔프가 제시하는 뮬라토 주인공의 가능성)

  • Song, Eun-Ju
    • English & American cultural studies
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    • v.10 no.2
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    • pp.127-147
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    • 2010
  • In Faulkner's many works, most Mulattoes are represented as tragic characters who feel confused with their racial identity and are sacrificed by the Southern racism in the end. However, in Go Down, Moses Lucas Beauchamp is an exceptional mulatto in that he survives the Southern racism and achieves some dignity as a human. It is because he maintains the relationship with his family and environment as a skilled farmer. Although Southerners idealized their lives in plantations as nature-friendly and ecological way of life, plantation owners had little direct relationship with land as plantations were cultivated by black slaves' labor. Therefore, white landowners had little knowledge about cultivation and ecological awareness. Although Lucas Beauchamp is criticized as he has the strong will to power and patriarchal attitude, it is partly caused from endeavor to overcome the suppression as a black male whose masculinity is denied in the Southern society. In spite of his limitation, he shows the possibility to escape from the curse prevailing in the South, which abuses land and other races through the relationship with others and land. He has positive aspects in that he has genuine relationship with land and others and takes his responsibility for others, searching the most suitable way to survive as a black.

Optical Flow-Based Marker Tracking Algorithm for Collaboration Between Drone and Ground Vehicle (드론과 지상로봇 간의 협업을 위한 광학흐름 기반 마커 추적방법)

  • Beck, Jong-Hwan;Kim, Sang-Hoon
    • KIPS Transactions on Software and Data Engineering
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    • v.7 no.3
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    • pp.107-112
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    • 2018
  • In this paper, optical flow based keypoint detection and tracking technique is proposed for the collaboration between flying drone with vision system and ground robots. There are many challenging problems in target detection research using moving vision system, so we combined the improved FAST algorithm and Lucas-Kanade method for adopting the better techniques in each feature detection and optical flow motion tracking, which results in 40% higher in processing speed than previous works. Also, proposed image binarization method which is appropriate for the given marker helped to improve the marker detection accuracy. We also studied how to optimize the embedded system which is operating complex computations for intelligent functions in a very limited resources while maintaining the drone's present weight and moving speed. In a future works, we are aiming to develop collaborating smarter robots by using the techniques of learning and recognizing targets even in a complex background.

The Effect of a Mechanical Chest Compressions for Out-of-hospital Advanced Cardiac Life Support (병원 전 전문심장소생술을 위한 기계적 가슴압박기의 효과)

  • Lee, Hyeon-Ji
    • Journal of Convergence for Information Technology
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    • v.9 no.11
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    • pp.227-233
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    • 2019
  • The purpose of this study is to evaluate the quality of chest compression by conducting comparison research between mechanical chest compressor(LUCAS) and manuale cardiopulmonary resuscitation(CPR) in a out-of-hospital environment and suggest effective advanced cardiac life support using mechanical chest compressors. For this, a out-of-hospital cardiac arrest was simulated with a team of 3 ambulance workers, and manuale CPR and CPR using LUCAS were performed on site and during transport in an ambulance. The research results are as follows: the comparison of manuale CPR between on site and in an ambulance revealed that on-site manuale CPR showed significant differences in the average compression depth, compression rate, and relaxation rate. Second, the comparison between manuale CPR and LUCAS in an ambulance showed significant differences in the average compression depth, compression rate, the number of compression per minute.

Detection of Illegal U-turn Vehicles by Optical Flow Analysis (옵티컬 플로우 분석을 통한 불법 유턴 차량 검지)

  • Song, Chang-Ho;Lee, Jaesung
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.39C no.10
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    • pp.948-956
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    • 2014
  • Today, Intelligent Vehicle Detection System seeks to reduce the negative factors, such as accidents over to get the traffic information of existing system. This paper proposes detection algorithm for the illegal U-turn vehicles which can cause critical accident among violations of road traffic laws. We predicted that if calculated optical flow vectors were shown on the illegal U-turn path, they would be cause of the illegal U-turn vehicles. To reduce the high computational complexity, we use the algorithm of pyramid Lucas-Kanade. This algorithm only track the key-points likely corners. Because of the high computational complexity, we detect center lane first through the color information and progressive probabilistic hough transform and apply to the around of center lane. And then we select vectors on illegal U-turn path and calculate reliability to check whether vectors is cause of the illegal U-turn vehicles or not. Finally, In order to evaluate the algorithm, we calculate process time of the type of algorithm and prove that proposed algorithm is efficiently.

A proposal for the relevant use of computer graphics in film (영화에서 적절한 컴퓨터 그래픽 기법의 활용을 위한 제안)

  • 김인철
    • Archives of design research
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    • v.11 no.2
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    • pp.5-14
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    • 1998
  • The hopes for making vivid images of mankind made 'film' that reflects easy communications. Film have made satisfactions to imagination of man by varied experimental expressions from the beginning. Many of directors and producers were eager to make film to be with relevant views. At last film has making to do with the digital tool, so called 'Computer Graphics' . Making images through computers have changed more better with the developing skills of softwares. NASA has developed Aero-Simulations first, it have called computer graphics for the first time in history. The computer graphics can make images with very varieties that had not exprerienced before and we won't expect the upcomming skills of it. Special Effects(SFX) through the films began the genre of Science Fiction in the era of ideology and space competetions and producer George Lucas made the firm named ILMOndustrial Light & Magic) to making picture of SFX. At last 'Abyss', 'Terminator II', 'Toy Story' and 'Forrest Gump' have made to us with many splendid arangements by the computers. Especially, we can concluded that the relevant expressions as in 'Forrest Gump' is the unexpected charming and human images with wonder. In Korean films are less varied, relevant and reasonable than that of American films, in this study I hope to develope more natural Korean computer graphic in near future.

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