563 research outputs found

    Developing an intelligent assistant for table tennis umpires

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    This paper outlines the idea and plan of developing an intelligent assistant for table tennis umpire in evaluating services. Table tennis is a fast sport. A service usually takes a few second to complete but there are many observations an umpire needs to take and makes a judgment before or soon after the service is complete. This is a complex task and the author believes the employment of videography, image processing and artificial intelligence (AI) technologies could help evaluating the service. The aim of this research is to develop an intelligent system which is able to track the location of the ball from live video images and evaluate the service according to the service rules. This is a pilot study and the focus is on the development of the techniques, rather than building a complete system. Various videography, image processing and artificial intelligence techniques will be experimented and evaluated. When a prototype system is built, it will be compared and tested against the judgements of a human umpire. Both the accuracy and rate of responses will be concerned. Furthermore, as well as aiding umpire, the system could also benefit players who want to have their services evaluated in real time without the need of having a human umpire present

    Prediction of Ball Placement Using Computer Simulation for Wheelchair Players in Table Tennis Singles

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    Because wheelchair table tennis players are physically limited by their handicap, they have to be trained efficiently for acquiring excellent skills and remarkable performance. Two integral skills they must possess are the control of ball placement and t

    Exploring Different Experience Modalities of Tennis Electronic Line Calling

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    New technologies have made sports more entertaining, safe, and fair in recent years. This study focuses on electronic line calling, a technology that is revolutionizing tennis. A set of sensors and complex algorithms enable umpires and players to determine with a certain degree of precision whether the ball has bounced inside or outside the court. Numerous technological solutions have been developed in this ambit, but little research has been conducted on the interaction between players and the system during a match. The research follows the Research trough Design approach and the Double-Diamond design process. I collaborated with the company PlayReplay AB, that has developed an electronic judging system. At first, I used research methods such as interviews with experts to understand the user needs and narrow down the problem. Secondly, I explored different modalities and iterated on several user interfaces to generate a final design proposal for PlayReplay's system. The findings demonstrate that the player experience with an electronic line call system depends on various elements. First, the system must adhere to certain requirements like discretion, punctuality, and reliability, otherwise will feel unreliable or disturbing. Second, the interaction modalities should comply with some specifics: the output should be easily identifiable but not obtrusive, and the input must be easy to use but also well incorporated into the game

    Maine Campus April 03 1996

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    Executive functions and sport agents

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    El objetivo de la presente revisión es investigar la producción científica de artículos que relacionen a los agentes deportivos (deportistas, entrenadores, árbitros) con las funciones ejecutivas (FE). Para ello, se realizó una búsqueda en WoS que arrojó 703 resultados. Un cribado de las referencias siguiendo las directrices PRISMA dejó 94 artículos con los que se llevó a cabo un análisis bibliométrico y revisión de los temas subyacentes que son FE de dominio general y específico en relación con el deportista, FE y tipo de deporte, detección de talentos, relación entre FE y habilidades específicas en el deporte, FE y posición en el terreno de juego, paradigma del experto/deportista de élite y las FE, FE y otros agentes deportivos y deportistas de élite con discapacidad y FE. En vista de los resultados, si bien parece haber un consenso sobre la importancia de las FE en el deporte, se requieren más estudios longitudinales que certifiquen su valor. Estudios recientes parecen indicar que no es trascendental en la detección de talentos. De la misma manera, existen indicios sobre su rol en deportistas que practican disciplinas abiertas y de oposición y sobre las diferencias existentes entre deportistas y no deportistas o expertos y noveles. Junto con lo expuesto anteriormente, se requieren pruebas que evalúen las FE con validez ecológica y de constructo y es necesario que el valor de las FE se traslade a la investigación con otros agentes deportivos como entrenadores o árbitros.The present review aims at investigating the scientific production with respect to the link between executive functions (EF) and sport agents (athletes, players, coaches, umpires). For that purpose, a series of searches were carried out on WoS that yielded 703 references. Upon a screening process following the PRISMA guidelines, a total of 94 papers were used to complete a bibliometric analysis together with a scoping review. Some underlying themes were detected, namely, domain-general vs domain-specific EF tests in sport, EF and type of sport, talent detection, EF and sport-specific skills, EF and position on the field/court, expert/elite paradigm and EF, EF and other sport agents and high-performance athletes with disabilities and the role of EF. In light of results, more longitudinal studies are required to confirm their value in athlete´s development, albeit the consensus with regard to their importance. Recent studies indicate the lack of predictive value of EF in talent detection. Likewise, there some indicators that point out to their role in open-skills, strategic sports as well as in the difference found between athletes and non-athletes and experts versus amateurs. In addition, domain-specific tasks are required to assess EF with both ecological and construct validity and EF should also be used to test other sport agents, such as coaches and referees/umpires

    Analysis of Video Assistant Referee (VAR) in football

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    Dissertation presented as the partial requirement for obtaining a Master's degree in Information Management, specialization in Information Systems and Technologies ManagementTechnology has long been part of sports and recently football has also started to modernize, with the introduction of goal line technology and VAR, International Football Association Board (IFAB) and Fédération Internationale de Football Association (FIFA) finally opened the way for technology to help referees make in-game decisions. This paper aims to analyze the impact of VAR in football, the analysis will include VAR’s weaknesses, research regarding if it is the most appropriate technology to correct human error, football’s fans perception of VAR and finally if AI could one day be introduced in order to help referees evaluate subjective in-game controversial situations. For the purpose of this paper to be achieved, surveys regarding football fans’ opinion on the VAR and openness to the introduction of new technologies in football will be performed and statistics and factual data regarding VAR will have to be obtained. Finally, by adding new research concerning a very recent topic, new technologies and opportunities can be proposed in order to make football fairer and future studies regarding this subject will be able to expand on this topi
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