• Title/Summary/Keyword: sports engineering

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A Study on the Development of Sports Jackets Using LED LIGHTING (LED LIGHTING을 활용한 스포츠 재킷 개발에 관한 연구)

  • Park, Jinhee;Kim, Jooyong
    • Journal of Fashion Business
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    • v.23 no.1
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    • pp.103-115
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    • 2019
  • In this study, we provided examples of light emitting diodes (LEDS) in everyday sportswear and confirmed their usefulness to provide functionality, aesthetics, and entertainment. One type of sports jacket and one set of sportswear were designed and manufactured using LEDs and made available to the general public for use in daily life to provide functionality, aesthetics, and entertainment. To generate digital images, a textural design of a circuit image was developed and applied, and the LEDs were placed on the developed textile in an attempt to merge the LEDs with the design. The product was equipped with a tilt sensor and produced a randomly lighted jacket with LEDs that adjusted according to movement. The LEDs turned on in the desired location by lifting the arm during night sports activities. The tricolor of NEO PIXEL LEDs lit randomly and its rhythmical design could be maximized when moving or exercising outdoors, and also for entertainment. The role of creating interest for lively and unexpected pleasures and the aesthetic beauty of LED lights were also obtained. There was no inconvenience or restriction of movement by LEDs or internal structures using the hot-melting technique, and the removable attachment of the device made it easier to wash.

Forecasting the Results of Soccer Matches Using Poisson Model (포아송 확률 모형을 이용한 축구 경기 결과 예측)

  • Seong, Hyun;Chang, Woo-Jin
    • IE interfaces
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    • v.20 no.2
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    • pp.133-141
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    • 2007
  • As the sales of the Sports Toto, the Korean lottery on sports games, have increased significantly in recent five years, interest in predicting the various results of sports matches has also been raised. Dixon and Coles (1997) proposed a bivariate Poisson model to predict the results of English soccer league matches. In this paper, we pay attention to the physical condition of players that may affect soccer match results and revise Dixon and Coles' model to consider probable fatigue due to the players' short rest followed by their frequent matches. We observed the fatigue effect in the match results, and found positive betting returns available when using our prediction model. Furthermore, the validity of probability-based odds in European and Korean betting markets is analyzed.

The Relationship between the Distance and Release Parameters in Korean Female Javelin Throwers (한국 여자 창던지기 선수들의 기록과 릴리즈 요인과의 관계)

  • Kim, Tae-Sam;Ryu, Ji-Seon;Lee, Soon-Ho
    • Korean Journal of Applied Biomechanics
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    • v.22 no.2
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    • pp.131-140
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    • 2012
  • This study was to investigate the relationship between the distance and projection factors, angle factors of javelin in women's javelin throwing. The data were collected in the 2011 National Sports Festivals for 11 players. Three-Dimensional motion analysis using a system of 4 video cameras at a sampling frequency of 60 fields/s was performed for this study. The factors of release conditions calculated using Matlab 2009a program. The statical analysis on the records(n=42) included mean and standard deviation of the mean(SD), Pearson's product moment correlation coefficient(SPSS Version 16.0 for Windows). There was a statistically significant positive relationship between the records and release velocity(r=.866, p<.01), height(r=.433, p<.01) and height rate(r=.340, p<.05). The attitude angle, release angle, and attack angle showed not a statistically significant relationship between the records. The medial-lateral tilt angle of javelin showed not a statistically significant relationship between the records, but the yaw angle of javelin(r=.549, p<.01) showed a statistically significant positive relationship between the records.

A Study on Profile Design of Customized Sports Content Curation System for Activating Daily Sports (생활 스포츠 활성화를 위한 맞춤형 스포츠 콘텐츠 큐레이션 시스템의 프로파일 설계 연구)

  • Lee, Su-min;Lee, Hyun-ho;Lee, Jae-dong;Lee, Won-jin
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2016.10a
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    • pp.852-853
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    • 2016
  • In this paper, we propose a profile design of customized sports content curation system for activating daily sports. The proposed profile is a system that recommends sports convergence contents in everyday life tailored to the characteristics of profile in terms of the individual and team. Especially, the proposed profile is designed as the static profile that is changed depending on the user's feedback. The proposed design of profile design are to improve the happiness and health of individuals, it is expected to contribute the new service model development of in the field of Sport for All.

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Implementation of Sports Video Clip Extraction Based on MobileNetV3 Transfer Learning (MobileNetV3 전이학습 기반 스포츠 비디오 클립 추출 구현)

  • YU, LI
    • The Journal of the Korea institute of electronic communication sciences
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    • v.17 no.5
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    • pp.897-904
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    • 2022
  • Sports video is a very critical information resource. High-precision extraction of effective segments in sports video can better assist coaches in analyzing the player's actions in the video, and enable users to more intuitively appreciate the player's hitting action. Aiming at the shortcomings of the current sports video clip extraction results, such as strong subjectivity, large workload and low efficiency, a classification method of sports video clips based on MobileNetV3 is proposed to save user time. Experiments evaluate the effectiveness of effective segment extraction. Among the extracted segments, the effective proportion is 97.0%, indicating that the effective segment extraction results are good, and it can lay the foundation for the construction of the subsequent badminton action metadata video dataset.

Life-sports Revitalize Plan for after COVID-19 (포스트 코로나 시대 생활체육 활성화 방안)

  • Jang, Jun-min;Kim, Taehong
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2021.10a
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    • pp.170-171
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    • 2021
  • Experts predict that even after the COVID-19 virus is completely over, it will be difficult to return to the pre-COVID state. As the non-face-to-face trend continued due to the prolonged COVID-19 crisis, sports activities were contracted and the amount of exercise of the people decreased. Demand for non-face-to-face services is increasing as the use of multi-use facilities is gradually restricted due to the higher level of social distancing. This study examines the actual conditions of participation in life sports and considers ways to revitalize sports for life suitable for the post-corona.

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A Study on the Estimation Accuracy of Energy Expenditure by Different Attaching Position of Accelerometer (가속도계의 부착위치에 따른 에너지 소비량의 예측 정확도에 관한 연구)

  • Kang, Dong-Won;Choi, Jin-Seung;Mun, Kyung-Ryoul;Bang, Yun-Hwa;Tack, Gye-Rae
    • Korean Journal of Applied Biomechanics
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    • v.19 no.1
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    • pp.179-186
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    • 2009
  • This works studied to compare gas analyzer with accelerometer and the estimation of energy expenditure based on different attaching position of tri-axial accelerometer such as waist and top of the foot Based on the fact that oxygen intake increases more radically linearly during walking more than 8.0km/hr. 9 male subjects performed walking and running on the treadmill with speed of $1.5{\sim}8.5km$/hr and $4.5{\sim}13.0km$/hr, respectively. Commercially available Nike + iPod Sports kit was used to compare energy expenditure with sensor module attached to their foot. Actual energy expenditure was determined by a continuous direct gas analyzer and two multiple regression equations of walking and running mode for different attaching position were developed. Results showed that estimation accuracy of energy expenditure using waist mounted accelerometer was higher than that of the top of the foot and Nike + iPod Sports kit. Results of energy expenditure based on waist and top of the foot showed that the crossover state of energy expenditure occurred at 7.5km/hr. But Nike + iPod Sports kit could not find intersection of energy expenditure in all nine subjects. Therefore the sensor module attached to the waist and separate multi regression equation by walking and running mode was the best to estimate more accurate prediction.

A Study on Inverse Kinematics Based Posture and Motion Generation System for Sports Climbing (역운동학 기반 스포츠클라이밍 자세 및 동작 생성 시스템에 관한 연구)

  • Shin, Kyucheol;Son, JongHee;Kim, Dongho
    • KIPS Transactions on Software and Data Engineering
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    • v.5 no.5
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    • pp.243-250
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    • 2016
  • Recently, public interest in virtual reality (VR) and augmented reality (AR) has increased. Therefore, computer graphics-related research has been actively conducted. This has included research on virtual space related to human posture implementation. However, such research has focused on general posture in humans. This paper presents a system with reference to the basic posture in sports climbing and the inverse kinematics method for generating the positions and behavior of virtual characteristics in a three-dimensional virtual space. The simulation based on the inverse kinematics method, produced with an inverse kinematics solver and initial pose animation from motion capture, provides realistic and natural movement. We designed a simulation system to generate correct posture and motions similar to those in sports climbing by applying the basic procedure of sports climbing. The simulation system provides help for producing content about sports climbing, such as learning programs for novice climbers and sports climbing games.

A Successful Case of the 'Great Admiral Yisunsin Festival' that Integrates 'Chungmugong e-sports Competition' (충무공 해상대전 e-sports대회를 접목한 성웅 이순신 축제의 성공 사례)

  • Lee, Jung-Jun
    • The Journal of the Korea Contents Association
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    • v.11 no.6
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    • pp.127-134
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    • 2011
  • A local festival is to be an essential element for the revival of regional economy and marketing since the management concept have introduced in the local government. Each local government is trying to achieve a maximum of efficiency at short period of time. But, most festival are each similar and common. In Asancity, it was holding the 'Great Admiral Yisunsin Festival' every year in April. It has grown into a representative historical figure festival nationally, but can't get over the limitation of historical figure festival. For differentiation from other festivals, The Asancity developed a online game in collaboration with hoseo university game engineering. The e-sports competition with this game was held, as a result, Many youths whose are a neglected class of people on the festival came in the festival and this e-sports competition has become benchmark for many local governments.

A Study on Present Condition and Spatial Organization of Domestic Marina Club to Design Leisure Floating Architecture (레저용 플로팅건축물 설계를 위한 국내 마리나클럽 현황 및 공간구성에 관한 연구)

  • Pak, Sung-Sine
    • Journal of Navigation and Port Research
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    • v.36 no.3
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    • pp.253-259
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    • 2012
  • Marina and marina clubs are the essential structures to meet increasing marin tourism and marin leisure sports demand. According to the domestic situation, marina and marina clubs are divided into 6 types such as small sports type, small complex type, midium sports type, midium complex type, large sports type, large complex type. As a result of analysis of domestic three marina clubs, averagely marina facilities take 21% and commercial facilities take 79% of total space. In the short term, marina club should be designed focusing on complex program. Marina club will be for long-term transformed into marin leisure sports program. Additionally, it is certain that floating marina club is an architecture to have water-friendly space and to maximize marin tourism and marin leisure sports.