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Quest3D中文教材Quest3D软件是目前世界上最先进的虚拟现实创作平台之一，Quest3D独特的编程风格，使得开发者可以非常容易的创作出效果完美的虚拟现实项目，软件开发者大量采用了功能强大的程序模块，使用者无须再去编写成千上万行的复杂编码，只需要动几下鼠标。-Chinese teaching materials Quest3D software Quest3D is the world

本文完成了对唇动身份识别技术几个基本问题的理论研究,并对整个系统加以实现.作为本文研究的实验基础,我们建立了唇动方式身份识别数据库(HITLUDB), 该库目前包含30个说话人每人20个汉语词的音视频语料.数据库的扩充与完善工作仍在不断的进行之中.在嘴唇检测方面, 我们对自适应色度过滤模型进行改进,提高了算法的鲁棒性,完成了对嘴唇的精确定位.结合DCT变换与K-L变换的各自特点, 我们提出了特征提取算法,使用较少维数的特征完成了对嘴唇区域主要信息的刻画.由于唇动信息同时包含了生理特征与行为特征, 我们使用静念动念混合建模的方式,完成了对说话人唇动个性特点的精确描述.在HMM训练时,我们提出了特征的归一化处理方法,提高了HMM在实际应用中的性能. 最后,我们分别对身份辨认系统与身份确认系统的基本理论进行了叙述,并完成了系统的实践工作. 关　 键　 词：身份识别 唇动 特征提取 隐马尔可夫模型 K-L变换 -paper completed the lip movements identification technology several basic issues of theoretical study, system as a whole be achieved. As this paper, the experimental basis, We have established a dynamic manner lip identification database (HITLUDB) The library currently contains 30 words each of 20 Chinese words, sound and video corpus. and the expansion of the database is still perfect keep going on. Detection of the lips, we adaptive color filter model improvements, improve the robustness of the algorithm, completed a pair of lips the precise positioning. DCT combined with

C_语言常见问题集 对于初学C语言的许多困惑，你可以在这里找到答案。-Frequently Asked Questions C_ language learning C language for the many confusing, you can find the answers here.

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指纹识别论文集1.都是国内外名家作品,很有参考价值.- Fingerprint recognition collection 1. All is the domestic and foreign famous experts work, has the reference value very much

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这是一本关于C语言的书籍，希望能够帮助更多的人得到进步与提升。-This is a book on the C language, I hope to help more people to be progress and upgrade.

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