共查询到20条相似文献，搜索用时 171 毫秒
1.
深入分析击剑视频管理与应用系统功能,将中国击剑队在比赛视频管理及应用研究方面的实践经验与视频技术、互联网技术及云技术发展的现实情况相结合,提出击剑比赛视频管理与应用系统未来发展的5个重点方面,即推进视频资料管理网络化,探索构建以"视频云服务"为导向的视频资料管理系统,建立Android平台视频资料辅助管理系统,推动多元智能的视频资料编辑系统,打造以数据挖掘为基础的分析数据直观呈现功能。 相似文献
2.
3.
采用C#语言和SQL数据库编写程序,开发了乒乓球技、战术分析统计软件,应用该软件对2011年世界乒乓球锦标赛的48场比赛视频进行了视频管理,并对其中14场比赛进行了详细技、战术分析.结果表明,该软件能够对乒乓球比赛视频进行快速查找和关键时刻点精确定位,能够快速的进行技、战术分析和统计;实现了视频片断自动截取和合成导出、计时和比分、插入字幕和图像标记、数据和视频文件共享等功能;能够满足乒乓球比赛视频的技、战术分析统计的需求.该软件在设计时,采用开放式技、战术分析模板并预留了视频采集、比赛场地标定、图表显示等功能的开放窗口,能够供其他运动项目使用和持续开发. 相似文献
4.
一、击剑运动的特点击剑比赛是个人对抗性的竞赛活动、有人称为“斗智的运动”它除一般特点以外还有如下特点 1.个人独立性:击剑比赛的个人和团体赛都是依靠个人独立作战来实现,教练不能在比赛时对场上队员作临场指导,实现作战计划完全靠个人行动,临场产生情况要个人自决来应变,思想活动的主动、灵活、自决的能力是击剑运动员的重要品质,被动,依赖、犹豫不决,盲目无计划、应变迟钝的情况,都是不能在击剑比赛中取得成绩。 相似文献
5.
6.
击剑训练比赛实践形成了海量的数据资源,这些数据资源不仅对于备战、训练和比赛具有非常重要的意义,而且是进行比赛和训练决策支持的宝贵资源。由于缺乏有效管理和挖掘,这些数据孤立、分散,不能积累形成知识用于分享。从知识视角出发,研究了基于产生式规则的击剑训练比赛知识表示和基于属性约简的知识推理方法,搭建了由赛事库、选手信息库、比赛分析案例库组成的知识库,并由此构建了由临场比赛分析系统、离线数据采集分析系统、训练计划与训练监控系统和知识平台组成的击剑训练比赛决策支持系统。应用实践表明,该系统体现了知识积累、共享和创新的三大特点,具有良好的交互性和扩展性,可以有效运用于击剑训练、教学和科研实践。 相似文献
7.
8.
9.
10.
比赛及训练录像是教练员、体育科研人员在训练和科研工作常用的重要工具。在长期工作中,他们积累了大量的视频资料,如何有序管理并有效利用这些资料也因此成为一个重要课题。目前,市场上还没有针对体育项目特点研发的视频管理软件,针对体育比赛和训练开发了视频数据库管理软件TacAnalysis。该软件提供了一个开放式的数字视频数据库创建工具,视频分析方法简便、快捷,视频查找实现了快速、准确、分类功能,不同科研人员分析的视频资料和数据成果能够共用、分享或组合成统一的数据库,TacAnalysis还可以对技术动作进行分类统计。应用TacAnalysis数据库软件,初步形成了举重项目近年来的视频资料数据库、体操2008年奥运会的视频数据库,建立了乒乓球和摔跤项目视频管理数据库模型以及技术动作统计模板。 相似文献
11.
12.
冰球运动视频资源是现代冰球运动技战术研究的重要组成部分，为克服传统冰球运动视频资源管理方法的局限性，一个解决方案是使视频资源管理系统具备语义搜索和过滤能力。为达到高效索引和检索的目的，进行了冰球运动视频资源的信息元素语义化分析，并初步提出冰球运动视频资源管理系统的语义索引结构设计方案，为建立专业化视频资源管理系统提供技术与方法参考。 相似文献
13.
通过文献资料法、录像拍摄等方法,选取现役三名男子撑杆跳运动员为研究对象,运用视讯影像解析系统对获得视频资料进行分析研究,结果表明,三人不同程度的存在着助跑不够积极,后三步节奏不合理,起跳过程中左手高度不高,起跳点相对靠前等问题。 相似文献
14.
Learning from demonstrations: the role of visual search during observational learning from video and point-light models 总被引：2，自引：1，他引：1
In this study, we examined the visual search strategies used during observation of video and point-light display models. We also assessed the relative effectiveness of video and point-light models in facilitating the learning of task outcomes and movement patterns. Twenty-one female novice soccer players were divided equally into video, point-light display and no-model (control) groups. Participants chipped a soccer ball onto a target area from which radial and variable error scores were taken. Kinematic data were also recorded using an opto-electrical system. Both a pre- and post-test were performed, interspersed with three periods of acquisition and observation of the model. A retention test was completed 2 days after the post-test. There was a significant main effect for test period for outcome accuracy and variability, but observation of a model did not facilitate outcome-based learning. Participants observing the models acquired a global movement pattern that was closer to that of the model than the controls, although they did not acquire the local relations in the movement pattern, evidenced by joint range of motion and angle-angle plots. There were no significant differences in learning between the point-light display and video groups. The point-light display model group used a more selective visual search pattern than the video model group, while both groups became more selective with successive trials and observation periods. The results are discussed in the context of Newell's hierarchy of coordination and control and Scully and Newell's visual perception perspective. 相似文献
15.
In this study, we examined the visual search strategies used during observation of video and point-light display models. We also assessed the relative effectiveness of video and point-light models in facilitating the learning of task outcomes and movement patterns. Twenty-one female novice soccer players were divided equally into video, point-light display and no-model (control) groups. Participants chipped a soccer ball onto a target area from which radial and variable error scores were taken. Kinematic data were also recorded using an opto-electrical system. Both a pre- and post-test were performed, interspersed with three periods of acquisition and observation of the model. A retention test was completed 2 days after the post-test. There was a significant main effect for test period for outcome accuracy and variability, but observation of a model did not facilitate outcome-based learning. Participants observing the models acquired a global movement pattern that was closer to that of the model than the controls, although they did not acquire the local relations in the movement pattern, evidenced by joint range of motion and angle-angle plots. There were no significant differences in learning between the pointlight display and video groups. The point-light display model group used a more selective visual search pattern than the video model group, while both groups became more selective with successive trials and observation periods. The results are discussed in the context of Newell's hierarchy of coordination and control and Scully and Newell's visual perception perspective. 相似文献
16.
Masahide Murakami Masato Iwase Kazuya Seo Yuji Ohgi Reno Koyanagi 《Sports Engineering》2014,17(4):217-225
Ski jumping flight posture was analyzed for achieving large flight distance on the basis of high-speed video images of the initial 40 m part of 120-m ski jumping flight. The time variations of the forward leaning angle and the ski angle of attack were measured from the video images, and the aerodynamic forces were calculated from the kinematic data derived from the images. Some correlations were investigated between the initial-speed corrected flight distance and such parameters as the angles of jumper, the initial transition time and the aerodynamic force coefficients. The result indicated that small body angle of attack was a key for large flight distance in the initial phase of flight because of small drag force, and that the most distinctive fault of beginners was too large body angle of attack and ski angle of attack leading to aerodynamic stall. Too small drag force does not give an optimal condition for large flight distance because the lift force is also too small. The ratio of the lift to the drag was larger than 0.95 for advanced jumpers. 相似文献
17.
游泳技术监测系统的研究与应用 总被引：11，自引：2，他引：9
通过文献研究以及情报收集,了解国际游泳比赛采用的最新测试方法,结合我国国情,运用运动生物力学原理建立了一套适合我国国情特点的游泳技术监测系统。该系统运用多台摄像机定点和扫描拍摄运动员的比赛技术,采用同步后处理方法,进行录像解析和数据处理,可以长期跟踪测试运动员的比赛技术参数,能够准确反映运动员的比赛技术和能力状况。它与目前国际上采用的测试方法相比,具有精度类似、费用小、实用性强的特点,同时也符合我国目前的科研条件。 相似文献
18.
探讨足球运动员进攻战术决策任务下的视觉搜索特征。以“3V2”进攻战术决策视频为刺激材料,以8名职业联赛预备队队员为专家组,以8名足球专项大学生为新手组,采用德国Ergoneers生产的Dikablis Professional头戴式眼动仪配合D-Lab软件进行数据采集与处理,邀请专家采用Likert5点选项法对战术决策合理性进行赋分,基于SPSS 25.0软件独立样本t检验进行比较分析。结果:专家组表现出更加快速、更加合理的战术决策特征,原因是其能够有效辨别刺激目标信息的关键程度,采用较多注视和眼跳对空当区域的位置、大小特征进行深度提取加工,采用较少注视和眼跳对近端攻防球员提取加工,并鉴于优先选择射门的进攻决策选择,重点关注远端攻防球员和球门区域,形成“由远及近”的视觉搜索策略和远端进攻球员>球门>远端防守球员>近端进攻球员>空当>近端防守球员的注视分配原则。 相似文献
19.
刚刚结束的伦敦奥运会在奥运史上不同寻常,其引发的议论之多,给人们造成的印象之繁复,甚至冲突都是前所未有的,体现了网络时代的特点。中国体育健儿在这届奥运会上表现依然出色,但值得注意的是,无论是普通民众还是媒体对38金、27银、23铜的煌煌战绩似乎并未给予太多的关注,这届奥运会却引发了一次关于体育的全民大讨论和大反思。 相似文献