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Search Results: 1 - 10 of 15366 matches for " video and performance "
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FEEDBACK IN RHYTHMIC GYMNASTICS AS A PROCESS OF CORRECTING TECHNICAL MISTAKES
Moraru C.
Sport si Societate : Revista de Educatie Fizica, Sport si Stiinte Conexe , 2012,
Abstract: Moves in rhythmic gymnastics require a very good technique both biomechanically, esthetically and artistically speaking, thus relating this sportive field to art. That is why scoring the contest exercises is made according to the scoring code that penalizes each and every technical mistake. In order to ensure the training’s quality and efficiency, technical mistakes require a special type of analysis, allowing their correct identification and their subsequent elimination from the training process. An efficient method of providing feedback about the gymnasts’ mistakes is the use of video registrations, where the move’s main characteristics can be noted. Therefore, our paper’s goals are the video analysis of the main types of ball handling and the role of the feedback in correcting technical mistakes in rhythmic gymnastics. The batch of athletes included 4 gymnasts of the third category who participated in both contests (National Juniors’ Championship and Romanian Cup) of 2010 and 2011. Upon applying the method of video analysis and comparing the results of the two contests, we have noted the increase of the gymnasts’ scores, as shown by the values of the Student t” test, where we note a significance threshold of p<0.001. By interpreting the results, we can assert that the application of this method led to the gymnasts’ awareness of their own technical value and to achieving remarkable results in competitions.
Smoothing and Modeling of Video Transmission Rates Over a QoS Network With Limited Bandwidth Connections
Khaled Shuaib,Farag Sallabi,Liren Zhang
International Journal of Computer Networks & Communications , 2011,
Abstract: Transmission of video over a limited bandwidth network is challenging due to the natural variability of video, and link characteristics. Video smoothing techniques can be used to facilitate more effective transmission and to preserve better quality. In this paper we develop a semi-optimal video smoothing approach to manage the transmission of MPEG-4 and H.264 video while mapping it to be more suitable for a QoS based network. The proposed technique utilizes a smoothing buffer with pre-defined thresholds to smooth the transmission rates while assuming minimal information about the video to be transmitted. The results obtained showed a significant improvements in transmission rate variability while guaranteeing no buffer overflows or underflows. In addition, a queuing model is developed for the used smoothing algorithm for H.264 video streams with optimized encoding and packetization, utilizing the available H.264 macroblock ordering option.
Pela camera somática: a Dan a-Teatro e o vídeo-documentário como performance
Ciane Fernandes
Contemporanea : Revista de Comunica??o e Cultura , 2010,
Abstract: This article discusses the relationship between dance theater and video documentary, from a somatic perspective. Somatics is understood as a method of body work (education and therapy) and aesthetic creation. In this video-choreographic process, it associates Performance Studies, Laban/Bartenieff Movement Analysis, and Psychoanalysis, delineating concepts such as Performativity, Dramaturgy of Contrasts, Dynamicity, Rhythm, Principles in Movement, Integration, Dynamic Pause, and body image. In a somatic duet of consciousness and memory, the performer becomes simultaneouslysubject and object, mover and observer, artist-creator and researcher-analyst, rediscovering his/her creative autonomy in the contemporary context of constant transformation.
Patrones de Discurso Observados en el Aula de Matemática de Segundo Ciclo Básico en Chile
Radovic,Darinka; Preiss,David;
Psykhe (Santiago) , 2010, DOI: 10.4067/S0718-22282010000200007
Abstract: triadic sequences (initiation-response-follow up) are a frequent type of interaction in classrooms in many different countries. this study describes, using a spoken discourse codification system, these sequences in 89 chilean public middle-school level mathematics lessons, chosen at random from 684 classes that were filmed for a national evaluation. triadic sequences were related to teachers' performance scores and lesson activities. the study identified a relatively shared interactional pattern, whose main features were: closed ended questions, low frequency of student participation and low use of metacognitive teacher follow-ups. in addition, when teaching mathematic skills, teachers generated more questions involving application of content, in comparison to other type of questions. teachers that received a higher performance assessment produced a higher number of open-ended questions as well as a higher number of questions about students' personal experiences. the results of this study suggest that increasing the repertoire of teacher discourse is a potential area for teachers' training.
Investigación con el sistema da Vinci? en el Hospital St Mary?s de Londres
Hernández,Juan David; Dosis,Aristotelis; Bello,Fernando; Wang,Dorothy; Borelli,Joao; Darzi,Ara;
Revista Colombiana de Cirugía , 2005,
Abstract: ypothesis: the da vinci? surgical system allows surgeons to overcome the limitations imposed by minimally invasive surgery (mis) in terms of dexterity, operative field control and ergonomy. the studies included evaluate the learning curve, 3-d vision and motion analysis to reveal the system’s advantages over mis and to establish performance assessment methods. methods: system employed: da vinci? surgical system. three comparative experiments with 11 to 13 surgeons performing different tasks looking at: learning curve comparing experienced and non-experienced surgeons, advantages of 3d over 2d vision, and advantages of robotic surgery over minimally invasive surgery (mis). assessment: measurement of surgeon’s performance by means of a global scale for skills (osats) and errors count, with blind scoring by experts. additionally, motion analysis software for mis (icsad) and robotic surgery (rovimas), both developed by the department and previously validated in other studies. statistic calculations: spss 10,0? software. p<0,05. results: the learning curve rendered an osats score of 18 for the first attempt and 26 for the fifth (p=0,02, cronbah alpha: 0.894). motion analysis showed reduction in number of movements and path length (p=0,01). comparing robotic surgery with 3-d vision vs. mis rendered a 40% reduction in time taken (p=0,001) and 70% reduction in path length (0,008), with 93% less skill-related errors. 3-d vision was proved to be superior to 2-d in several trials. conclusion: “endowrist” instruments, tremor abolition, motion scaling and 3-d vision of the da vinci? surgical system enhance the surgeon’s dexterity and performance in robotic assisted mis.
IMPACT OF HOME VIDEO WATCH ON THE ACADEMIC PERFORMANCE OF STUDENTS IN SELECTED PUBLIC SECONDARY SCHOOL IN IDO LGA OF IBADAN METROPOLIS, NIGERIA
Fehintola, J. O,Audu, U. J
Academic Research International , 2012,
Abstract: The purpose of this study was to examine the joint associations and effects of time watched, time spent, number watched, type watched, parents’ reaction and watch reason on the academic performance of secondary school students in Ido Local Government Area of IbadanMetropolis, Nigeria. Simple random sampling technique was used to select 5 public secondary schools out of 18 found in the area. A structured questionnaire was administered to students and teachers using systematic and accidental sampling techniques. Data obtained were analysed using tables, Pearson’s correlation and multiple regression analysis. Result of Pearson’s correlation revealed significant associations among the independent variables (timewatched, time spent, number watch, type watched, parents’ reaction and watch reason) and the dependent variable (academic performance) of secondary school students. The multiple regression result also showed that the academic performance of secondary school students issignificantly influenced time watched, time spent, number watched, type watched, parents reaction and watch reason (F = 26.125, p<0.01). Time spent watching home video was identified by the model as the most potent predictor variable of academic failure (B = 0.349, t= 8.134, p<0.01). Hence, to tackle this recurrent phenomenon in our homes, parents are encouraged to monitor the shows, films and programmes their children watch. Also, to enhance students’ academic performance, parents are advised to ensure that high-qualityeducational programmes be made available and children should be encouraged to watch informational, educational and nonviolent movies and programmes.
KAJIAN METAMORFOSIS PERFORMANCE ART SERTA ASPEK SOSIALNYA
Satriana Didiek Isnanta
Nirmana , 2006,
Abstract: In the middle of recent development of Indonesian contemporary fine arts world, primarily works regarding the development of technology, New Media Art is one of examples. In the arts context, its uses are often understood as an offer of novel possibility in creating or experiencing the arts. One of them is the metamorphoses of performance art to be multimedia performance, and last metamorphoses into video performance. Video performance, was born out of long history of performance art progress around 1909 through the manifesto of Futurist group in Paris, whose members were poets, painters, and theater players, by using human body as a medium, performance art did dematerialization within art. Video performance in its presentation, perceived that human body was not anymore to be its part, however, what emerged then was virtual body. The existence of body was not really actual, however, its presence could be felt from the visual display coming out from a projector. Here, performance art has been mediated and metamorphosed. In addition, the problems of art and technological fusion promoting the metamorphoses of performance art to be video performance like mentioned above, this writing also discusses social aspects in the line with the emergence and development of performance art in Indonesia. At first, performance art as a process of making aware and resistance arts by deconstructing social reality and the state of being established of the fine arts itself. Second, the ambient media phenomenon in the global advertising practice (including Indonesia) distracting struggle direction of performance art “genue” from the process of making aware media into “kitsch” art as a frontline point of advertising for market interest. in Bahasa Indonesia: Dalam perkembangan dunia seni rupa kontemporer Indonesia dewasa ini, khususnya karya-karya yang bersinggungan dengan perkembangan teknologi, New Media Art (seni media baru) adalah salah satu contohnya. Dalam konteks seni, penggunaannya sering dipahami sebagai tawaran kemungkinan baru dalam menciptakan atau mengalami kesenian. Salah satunya adalah adanya metamorfosis performance art menjadi multimedia performance dan yang terakhir bermetamorfosis menjadi video performance. Video performance, lahir dari sejarah panjang perkembangan performance art sekitar tahun 1909 lewat manifesto kelompok Futurist di Paris yang beranggotakan penyair, pelukis, dan pemain teater, dengan menggunakan tubuh sebagai medium, performance art melakukan dematerialisasi dalam seni. Video performance dalam presentasinya, tubuh sudah tidak lagi menjadi b
Towards A Multi-Terminal Video Compression Algorithm By Integrating Distributed Source Coding With Geometrical Constraints
Bi Song,Ertem Tuncel,Amit Roy-Chowdhury
Journal of Multimedia , 2007, DOI: 10.4304/jmm.2.3.9-16
Abstract: In this paper, we present a framework for multiterminal video compression (MTVC) that exploits the geometric constraints between cameras with overlapping fields of view, and then uses distributed source coding on corresponding points in two or more views. There are two main parts of the paper - a Distributed Motion Estimation (DME) algorithm and a Distributed Source Coding (DSC) algorithm. The novelty of the approach lies in the integration of these two parts. The overall algorithm is developed such that future improvements in either of the two parts can be integrated into it. We start by describing the algorithm for obtaining corresponding points followed by the distributed coding strategy. Our experiments provide a benchmark on the upper bound of the gain obtained through distributed coding of a pair of video sequences, as opposed to coding each of them separately. We also show results on a reallife face video sequence obtained by a pair of overlapping cameras. Through this experimental analysis, we show that at low bit-rates MTVC can achieve very significant savings.
Art Portraying Medicine
Kaisu Koski
Journal of Research Practice , 2011,
Abstract: A number of art projects are currently tackling the medical domain. This activity stems from a perceived need to increase the transparency and democracy of the medical domain, and it often questions the power relations and the one-dimensionality in current medical practices. This article sheds light on how artists process medical themes, elaborates on research elements embedded in art making processes, and considers the relevance of artists' projects for researchers from other disciplines. It deliberates on the author's media and performance art practice in exploring the doctor-patient relationship and discusses the artistic methods and techniques employed. The article promotes the personal, imaginative, and figurative characteristics in the discussion and signification of the body in medicine.
System-Level Performance Evaluation of Very High Complexity Media Applications : A H264/AVC Encoder Case Study  [PDF]
Hajer Krichene Zrida, Abderrazek Jemai, Ahmed C Ammari, Mohamed Abid
Int'l J. of Communications, Network and System Sciences (IJCNS) , 2011, DOI: 10.4236/ijcns.2011.47052
Abstract: Given the substantially increasing complexity of embedded systems, the use of relatively detailed clock cycle-accurate simulators for the design-space exploration is impractical in the early design stages. Raising the abstraction level is nowadays widely seen as a solution to bridge the gap between the increasing system complexity and the low design productivity. For this, several system-level design tools and methodologies have been introduced to efficiently explore the design space of heterogeneous signal processing systems. In this paper, we demonstrate the effectiveness and the flexibility of the Sesame/Artemis system-level modeling and simulation methodology for efficient peformance evaluation and rapid architectural exploration of the increasing complexity heterogeneous embedded media systems. For this purpose, we have selected a system level design of a very high complexity media application; a H.264/AVC (Advanced Video Codec) video encoder. The encoding performances will be evaluated using system-level simulations targeting multiple heterogeneous multiprocessors platforms.
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