基于动捕数据驱动的三维民族舞蹈展示方法

三维模型动画在数字化设计和应用中具有重要意义,受到越来越多研究者关注;但如何通过三维数字化原真再现民族舞蹈表演是极具挑战的问题.本论文通过动捕技术采集舞蹈动作实现舞蹈数字化展示.具体方法是:首先利用动捕设备捕获人体动作数据,然后在Maya中进行人物建模、骨骼绑定、蒙皮和权重调节,再通过MotionBuilder将3D模型与动捕数据结合,最终完成了现实舞蹈动作的虚拟人展演.论文构建了一个面向民族舞蹈展演的虚拟场景,并以13个民族的舞蹈为数字化内容,推广动捕驱动的舞蹈展演方法的应用.     

动作捕捉技术在舞蹈姿态分析和教学中的实践研究

为了将人体运动仿真技术应用到舞蹈姿态分析和教学研究中。研究了舞蹈姿态动作捕捉及分析,包括舞蹈动作的实时采集,舞蹈姿态的模型数据库建立,以及基于特征平面向量的21个关键节点和7个特征匹配平面的舞蹈姿态分析方法;然后,以某健美操班50名学员为实例,划分舞蹈基础和身体素质相当的两组分别进行常规教学和试验教学,试验对比组除了在动作幅度上低于常规组3.9分外,其在动作力度、规范程度方面的打分相比均高出9分以上。研究将动作捕捉技术与舞蹈教学和分析相结合,实现了舞蹈动作的直观反馈和分析,为科学的舞蹈教学提供了数据支撑。     

Quantification of dance movement by simultaneous measurement of body motion and biophysical information

The purpose of this research is a quantitative analysis of movement patterns of dance,which cannot be analyzed with a motion capture system alone,using simultaneous measurement of body motion and biophysical information.In this research,two kinds of same leg movement are captured by simultaneous measurement;one is a leg movement with given strength,the other is a leg movement without strength on condition of basic experiment using optical motion capture and electromyography (EMG) equipment in order to quantitatively analyze characteristics of leg movement.Also,we measured the motion of the traditional Japanese dance using the constructed system.We can visualize leg movement of Japanese dance by displaying a 3D CG character animation with motion data and EMG data.In addition,we expect that our research will help dancers and researchers on dance through giving new information on dance movement which cannot be analyzed with only motion capture.     

Presenting Movement in a Computer-Based Dance Tutor

This article addresses how to present movement information to learners as part of a larger project on developing a nonconventional computational system that teaches ballet. The requirements of such a system are first described, and then discoveries regarding the first requirement, presenting movement to a user, are discussed. Background research regarding how people learn movement, hypotheses concerning presenting movement with computer animation versus videotape, and an experiment testing those hypotheses are presented. The experiment required individuals to perform movements after viewing them in one of the formats. Each participant viewed a movement sequence multiple times and then was evaluated on his or her performance of that movement by two expert judges. Animations resulted in higher performance ratings for individuals with some previous dance experience. Format did not affect performance for other learners. This result implies that domain knowledge interacts with presentation format in learning ballet. These results will influence the design and implementation of a computer-based dance tutor under development, and they point to several interesting research directions, including exploring the effects of multimodal sensory presentations and prior knowledge in learning movement.     

Silk road dance exhibition system based on motion capture

Silk Road dance is an excellent traditional Chinese dance drama, which has high artistic values. This article introduces the virtual performance techniques of Silk Road based on motion capture. First, obtain the dance data using motion capture technique according to the features of dance itself, then establish figure model, finally combines these data to make 3-D animation system to perform Silk Road, meanwhile designs some interfaces to introduce it. This system excavates details of the dance, and can be reference of man-machine interaction and animation production.     

Design of embedded dance teaching control system based on FPGA and motion recognition processing

The complex human activities, to the dance teaching, it has not been constrained, it is a difficult task for computer vision. Field-programmable gate array (FPGA) a classification of the movement of the Indian classical dance by using the powerful features of the built-in system tools. Human behavior recognition for this work, classical dance education in India from offline and live performance to the online control of material in the carried out of the guidance record of audio and dance, in. Another theme and 10 familiar dance of 200 m / bills have created, is the offline data of guidance form of a variety of classical dance in various postures. The data collection of a variety of topics. Or education attitude accounted for 60, Dance education in both cases. FPGA training and eight different sample size, will be performed by each of the multi-group object. The remaining two samples are tested, it has been trained on the FPGA. Different FPGA architecture design, and excellent recognition accuracy, because to get our test data. Compared to the same data set and of other classification model report, the recognition rate.     

Easy-to-use authoring system for Noh (Japanese traditional) dance animation and its evaluation

Noh is a genre of Japanese traditional theater, a kind of musical drama. Similar to other dance forms, Noh dance (shimai) can also be divided into small, discrete units of motion (shosa). Therefore, if we have a set of motion clips of motion units (shosa), we can synthesize Noh dance animation by composing them in a sequence based on the Noh dance notation (katatsuke). However, it is difficult for researchers and learners of Noh dance to utilize existing animation systems to create such animations. The purpose of this research is to develop an easy-to-use authoring system for Noh dance animation. In this paper, we introduce the design, implementation, and evaluation of our system. To solve the problems of existing animation systems, we employ our smart motion synthesis technique to compose motion units automatically. We improved the motion synthesis method by enhancing the algorithms for detecting body orientation and constraints between the foot and ground to handle Noh dance motions correctly. We classify motion units as either pattern units, which are specific forms of motion, represented as shot motion clips, or locomotion units, generated on the fly to denote movement towards a specific position or direction. To handle locomotion-type motion units, we implemented a module to generate walking motion based on a given path. We created several Noh dance animations using this system, which was evaluated through a series of experiments. We also conducted a user test to determine the usefulness of our system for learners of Noh dance.     

基于视觉的人体运动捕捉技术研究

运动捕捉技术是计算机视觉和人体运动分析领域的研究热点,在计算机动画等领域拥有广泛的应用前景。在总结基于视觉的人体运动捕捉技术进展的基础上,分析运动跟踪、捕捉方法及技术难点,提出一种新的从视频提取人体运动信息,重现人体运动轨迹的方法、流程及系统设计框架。     

Computer vision for human modelling and analysis

This report summarises the author's views and experience on the application of computer vision technology for the modelling and analysis of people. The author conducted research which led to the first commercial booth system for capturing animated models of people for applications in games, multimedia and virtual reality. This research is ongoing with the aim of developing studio capture technology to enable photo-realistic capture of a person's shape, appearance and movement for broadcast production.Published online: 8 August 2003     

基于机器视觉的中国象棋人机博弈系统设计

通过对图像处理及人机博弈相关理论的研究,实现了一种中国象棋人机博弈机器人系统的设计。该系统通过摄像头采集棋盘图像,之后将图像传入计算机,同时计算机通过图像剪切方法和基于对数极坐标变换&傅里叶变换的模板匹配方法实现棋盘中棋子的定位与识别,之后调用中国象棋人机博弈算法得出下一步应进行的走法,计算机通过串口将走法信息传入下位机单片机中,单片机根据走法信息控制机械臂实现棋子的移动,完成与人的对弈过程。经测试,该系统能够完成基本的功能并且具有较好的稳定性。     

Dance movement: a focus on the technology

Dance notation systems, like music notes, enable documentation of symbolic representations of movement as signs on paper for individual analysis and interpretation. Today, dance notation systems operate within a digital environment in dance notation applications that facilitate the process of recording movement. The author argues that a key objective in the development of these applications should be to provide the user with an unambiguous method to record and represent movement. These applications offer varying functionality in their use of technology for the representation of movement and can be broadly defined in three different categories. Dance notation applications make up the first category - they help notate or record specific forms of movement using dance notation. Notation-based applications, the second category, include applications that use dance notation as a basis for their development. The last category, dance technology, consists of applications that use emerging technologies to record and visualize movement. While each application has a defined use, it's important to consider how effective the technologies they employ are in successfully achieving their objectives. In this article, the author focuses on dance applications in these three categories. The author considers the limitations of existing technologies in their ability to effectively describe and record movement within a specific context.     

基于动作捕捉技术的岭南舞蹈数字化保护研究

对岭南舞蹈的保护所面临的问题进行分析．提出基于动作捕捉技术的岭南舞蹈数字化保护方法。和传统的视频记录相比。观看者能够以任意角度、任意距离进行浏览。通过建立岭南舞蹈三维动作数据库与数字化虚拟展示,能真实全面再现每个岭南舞蹈的艺术精华,为今后岭南舞蹈的教学、舞蹈辅助编排、动画制作以及相关的研究工作提供精准的数字化平台。对岭南舞蹈的保护、传承和发展有着深远的意义。     

网络化手势运动跟踪系统设计

设计了一种基于微机电惯性传感器的数据手套.根据惯性导航和刚体动力学原理,构建了基于微型传感器的体感网络,并通过多传感器数据的融合解算以获取运动姿态信息,实现对手指各关节运动数据的捕获.结合计算机图形技术构建三维虚拟手捕获系统进行性能对比评估,实验结果表明:所设计的系统具有良好的稳定性和适应性,能够对手运动信息进行实时有效地捕获.     

基于特征向量匹配的舞蹈实时姿态分析方法

针对人体运动姿态可自由编辑的特性,提取人体骨架模型,建立人体运动姿态模型库,分析了运动捕捉系统在舞蹈训练中的应用,提出基于特征平面间相似性匹配的方法来计算模型各部件间运动数据参数。经过验证,该方法对于人体姿态的分析具有较高的准确性、鲁棒性,使得舞蹈演员能够准确的对比出与标准舞蹈动作的差异,为舞蹈者进行科学舞蹈训练提供了理论支持。     

基于dpdk的高效数据包捕获技术分析与应用

对Intel dpdk数据包捕获技术进行了深入研究,对其优缺点进行了详细的分析。在此基础上,利用dpdk设计并实现了一套基于Linux的数据包捕获系统,成功地将其应用于千兆网络安全防护系统中。使用BPS软件对基于dpdk的网络安全防护系统与基于pf_ring的网络安全防护系统进行仿真分析,结果表明dpdk对整体系统性能的提高成效显著,取得了良好的效果,验证了该方法的可行性。     

A survey of advances in vision-based human motion capture and analysis

This survey reviews advances in human motion capture and analysis from 2000 to 2006, following a previous survey of papers up to 2000 [T.B. Moeslund, E. Granum, A survey of computer vision-based human motion capture, Computer Vision and Image Understanding, 81(3) (2001) 231–268.]. Human motion capture continues to be an increasingly active research area in computer vision with over 350 publications over this period. A number of significant research advances are identified together with novel methodologies for automatic initialization, tracking, pose estimation, and movement recognition. Recent research has addressed reliable tracking and pose estimation in natural scenes. Progress has also been made towards automatic understanding of human actions and behavior. This survey reviews recent trends in video-based human capture and analysis, as well as discussing open problems for future research to achieve automatic visual analysis of human movement.     

面向弹载计算机的BIT技术研究

机内测试（Built-In-Test,BIT）技术是改善系统或设备测试性和维修性的重要途径。在对弹载计算机BIT技术特征进行研究的基础上,提出了弹载计算机BIT设计的基本准则,提供了一种典型的弹载计算机BIT设计方法,经实践验证该设计方法适用于多种类型的弹载计算机设备,故障检测率不低于90%,故障虚警率不超过2%,显著地提高了弹载计算机的可靠性、可测试性及可维护性。     

基于骨架信息的民族舞蹈典型动作识别

民族舞蹈是中国重要的非物质文化遗产,在动作识别技术应用十分广泛的环境下,对于民族舞蹈文化保护和传承的研究领域还比较空白。为了更好地保护和传承少数民族舞蹈,筛选了5类少数民族舞蹈典型动作片段,结合深度摄像机开发了动作数据采集系统,通过该系统采集民族舞蹈动作骨架信息,构建了民族舞蹈典型动作数据集,使用改进的三维卷积神经网络（3D CNNs）模型对民族舞蹈动作骨架序列进行了识别与分类,并且与其他经典动作识别方法进行了对比,该方法在实验中获得了95%的识别率。研究结果表明,该民族舞蹈数据集构建方法合理,识别模型对民族舞蹈分类有良好的性能,对民族舞蹈动作进行了有效的记录和保存,为民族舞蹈数字化保护提供一种新的方式。     

Emotion Analysis and Classification: Understanding the Performers' Emotions Using the LMA Entities

The increasing availability of large motion databases, in addition to advancements in motion synthesis, has made motion indexing and classification essential for better motion composition. However, in order to achieve good connectivity in motion graphs, it is important to understand human behaviour; human movement though is complex and difficult to completely describe. In this paper, we investigate the similarities between various emotional states with regards to the arousal and valence of the Russell's circumplex model. We use a variety of features that encode, in addition to the raw geometry, stylistic characteristics of motion based on Laban Movement Analysis (LMA). Motion capture data from acted dance performances were used for training and classification purposes. The experimental results show that the proposed features can partially extract the LMA components, providing a representative space for indexing and classification of dance movements with regards to the emotion. This work contributes to the understanding of human behaviour and actions, providing insights on how people express emotional states using their body, while the proposed features can be used as complement to the standard motion similarity, synthesis and classification methods.     

太阳能实验数据分析系统的研究与实现

首先描述太阳能实验数据分析系统的设计原理,然后给出具体的系统流程图。根据系统流程图,对系统研究内容以及实现需要解决的关键技术进行深入研究,给出基于成熟的计算机软件技术实现系统的解决方案。