学习啦>创业指南>职场>个人简历下载>英文简历>《vr简介中英文版对照怎么写》正文

vr简介中英文版对照怎么写

时间:2017-08-24 09:32:22本文内容及图片来源于读者投稿,如有侵权请联系xuexila888@qq.com 伟鑫 我要投稿

  虚拟现实技术是一种可以创建和体验虚拟世界的计算机仿真系统,利用计算机生成一种模拟环境,下面是学习啦小编给大家整理的vr简介中英文版,供大家参阅!

  vr简介

  Virtual reality technology is an important direction of simulation technology. It is a collection of various technologies such as simulation technology and computer graphics, human interface technology, multimedia technology, sensor technology and network technology. It is a challenging cross technology frontier and research field The Virtual reality technology (VR) mainly includes simulation environment, perception, natural skills and sensing equipment and so on. The simulation environment is a computer generated, real-time dynamic three-dimensional realistic image. Perception refers to the ideal VR should have all the people have the perception. In addition to computer graphics technology generated by visual perception, there are auditory, tactile, force, movement and other perception, and even including the sense of smell and taste, also known as multi-perception. Natural skill refers to the person's head rotation, eyes, gestures, or other human behavior, by the computer to deal with the action of the participants to adapt to the data, and the user's input to make real-time response, and were fed back to the user's facial features The A sensing device is a three-dimensional interactive device.

  虚拟现实技术是仿真技术的一个重要方向,是仿真技术与计算机图形学人机接口技术多媒体技术传感技术网络技术等多种技术的集合,是一门富有挑战性的交叉技术前沿学科和研究领域。虚拟现实技术(VR)主要包括模拟环境、感知、自然技能和传感设备等方面。模拟环境是由计算机生成的、实时动态的三维立体逼真图像。感知是指理想的VR应该具有一切人所具有的感知。除计算机图形技术所生成的视觉感知外,还有听觉、触觉、力觉、运动等感知,甚至还包括嗅觉和味觉等,也称为多感知。自然技能是指人的头部转动,眼睛、手势、或其他人体行为动作,由计算机来处理与参与者的动作相适应的数据,并对用户的输入作出实时响应,并分别反馈到用户的五官。传感设备是指三维交互设备。

  vr技术特点

  VR art is a new and independent art category that comes with the advent of "virtual reality". In the article "Virtual Reality Art: Genesis Ultimate Re-creation", VR art has the following definition: Virtual reality (VR), enhanced reality (AR) and other artificial intelligence technology as a means of media to use the art form, we call it virtual reality art, referred to as VR art.The main feature of the art form is hypertext and interactivity. "

  "VR as a comprehensive manifestation of modern technology, VR art is through the man-machine interface for visualization of complex data operations and interaction of a new form of art language, it attracts artists is important, is the art of thinking and technology tools closely And the deep penetration of the two generated by the new cognitive experience.Compared with the traditional window under the operation of the new media art, interactive and extended man-machine dialogue, VR art presents its unique advantages of the key from the overall sense Say, VR art is a new man-machine dialogue based on the interactive form of art, its biggest advantage lies in the construction of works and participants in the dialogue, through the dialogue to reveal the meaning of the process of generating.

  Artists through the VR, AR and other technology applications, you can use a more natural means of human-computer interaction to control the form of works to create a more immersive art environment and reality can not achieve the dream, and to create the process to New meaning. If the interactive device system with VR nature can set the viewer through the multi-sensory interactive channel and the process of crossing the device, the artist can use the software and hardware to promote the smooth cooperation between the participants and the work of communication and feedback, to create a good participation And can be manipulated; can also be captured through the video interface to capture, store the behavior of the visitor fragment to keep the participants in the sense of enhancements based on the synchrotron to enhance the effect and re-shape, processed images; by enhancing the reality, Reality and other forms, the digital world and the real world together, the audience can control the projection through their own text, such as data gloves can provide force feedback, mobile scenes, 360-degree rotation of the sphere space not only enhanced the immersion of the work And can make the audience into the interior of the work, manipulate it, observe its process, and even give the audience the opportunity to participate in re-creation. "

  VR艺术是伴随着“虚拟现实时代”的来临应运而生的一种新兴而独立的艺术门类,在《虚拟现实艺术: 形而上的终极再创造》一文中,关于VR艺术有如下的定义:“以虚拟现实(VR)、增强现实(AR)等人工智能技术作为媒介手段加以运用的艺术形式,我们称之为虚拟现实艺术,简称VR艺术。该艺术形式的主要特点是超文本性和交互性。”

  “作为现代科技前沿的综合体现,VR艺术是通过人机界面对复杂数据进行可视化操作与交互的一种新的艺术语言形式,它吸引艺术家的重要之处,在于艺术思维与科技工具的密切交融和二者深层渗透所产生的全新的认知体验。与传统视窗操作下的新媒体艺术相比,交互性和扩展的人机对话,是VR艺术呈现其独特优势的关键所在。从整体意义上说,VR艺术是以新型人机对话为基础的交互性的艺术形式,其最大优势在于建构作品与参与者的对话,通过对话揭示意义生成的过程。

  艺术家通过对VR、AR等技术的应用,可以采用更为自然的人机交互手段控制作品的形式,塑造出更具沉浸感的艺术环境和现实情况下不能实现的梦想,并赋予创造的过程以新的含义。如具有VR性质的交互装置系统可以设置观众穿越多重感官的交互通道以及穿越装置的过程,艺术家可以借助软件和硬件的顺畅配合来促进参与者与作品之间的沟通与反馈,创造良好的参与性和可操控性;也可以通过视频界面进行动作捕捉,储存访问者的行为片段,以保持参与者的意识增强性为基础,同步放映增强效果和重新塑造、处理过的影像;通过增强现实、混合现实等形式,将数字世界和真实世界结合在一起,观众可以通过自身动作控制投影的文本,如数据手套可以提供力的反馈,可移动的场景、360度旋转的球体空间不仅增强了作品的沉浸感,而且可以使观众进入作品的内部,操纵它、观察它的过程,甚至赋予观众参与再创造的机会。”

  vr关键技术

  Virtual reality is a combination of a variety of technologies, including real-time three-dimensional computer graphics technology, wide-angle (wide field) stereoscopic display technology, the observer head, eye and hand tracking technology, and tactile / force feedback, stereo, network transmission, voice Input and output technology. These techniques are described below.

  Real-time three-dimensional computer graphics

  By contrast, it is not too difficult to use a computer model to produce a graphic image. If there is enough accurate model, and there is enough time, we can generate accurate images of various objects under different lighting conditions, but the key here is real time. For example, in the flight simulation system, the image refresh is very important, while the image quality requirements are high, coupled with a very complex virtual environment, the problem becomes very difficult.

  Show

  When people look around the world, because of the different positions of the two eyes, the image is slightly different, these images in the minds of integration, it formed a whole world around the world, this scene includes distance information The Of course, the distance information can also be obtained by other methods, such as the distance between the eyes of the distance, the size of the object comparison.

  In the VR system, binocular stereoscopic vision played a significant role. The two images seen by the user's eyes are generated separately and displayed on different displays. Some systems use a single display, but the user to bring a special glasses, one eye can only see the odd frame image, the other eye can only see even frame images, odd, even between the different frames is parallax It produced a three-dimensional sense.

  User (head, eye) tracking: In the artificial environment, each object relative to the system coordinate system has a position and attitude, and the user is also true. The user sees the scene by the user's position and the direction of the head (eye) to determine.

  A virtual reality headset that tracks the head movement: In traditional computer graphics technology, the field of view changes through a mouse or keyboard, the user's visual system and motion-aware system are separate, and use the head tracking to change the image The perspective of the user's visual system and motion perception system can be linked between, feel more realistic. Another advantage is that users can not only through binocular stereoscopic vision to understand the environment, but also through the head of the movement to observe the environment.

  In the interaction between the user and the computer, the keyboard and mouse are the most commonly used tools, but for the three-dimensional space, they are not suitable. In the three-dimensional space because there are six degrees of freedom, it is difficult to find a more intuitive way to map the plane movement of the mouse into three-dimensional space of any movement. Now, there are already some devices that can provide six degrees of freedom, such as 3Space digitizer and SpaceBall space ball. Some of the more well-behaved devices are data gloves and data clothing.

  Sound

  People can well determine the direction of the sound source. In the horizontal direction, we determine the direction of the sound by the difference in the phase difference and the intensity of the sound, since the time or distance at which the sound reaches the two ears is different. Common stereo effect is to listen to the left and right ears in different locations to record the different sounds to achieve, so there will be a sense of direction. In real life, when the head turns, the direction of the sound will change. But in the VR system, the direction of the sound and the user's head has nothing to do with the movement.

  Feel feedback

  In a VR system, the user can see a virtual cup. You can try to catch it, but your hand does not really touch the feeling of the cup, and it is possible to pass through the virtual cup "surface", which in real life is impossible. A common device for solving this problem is to install some vibrable contacts on the inner layer of the glove to simulate tactile sensation.

  Voice

  In the VR system, the voice input and output is also very important. This requires that the virtual environment be able to understand the human language and interact with people in real time. It is quite difficult for a computer to recognize a person's voice because the speech signal and the natural language signal have their "multilaterality" and complexity. For example, there is no obvious pause between words and words in continuous voice, the same word, the same word by the words before and after the word, not only different people say that the same word will be different, that is, the same person will be subject to psychological, Physiological and environmental effects vary.

  The use of human natural language as a computer input There are two problems, the first is the efficiency of the problem, in order to facilitate the computer to understand, enter the voice may be quite long-winded. Second is the correctness of the problem, the computer understands the voice of the method is to match the match, and no one's intelligence.

  虚拟现实是多种技术的综合,包括实时三维计算机图形技术,广角(宽视野)立体显示技术,对观察者头、眼和手的跟踪技术,以及触觉/力觉反馈、立体声、网络传输、语音输入输出技术等。下面对这些技术分别加以说明。

  实时三维计算机图形

  相比较而言,利用计算机模型产生图形图像并不是太难的事情。如果有足够准确的模型,又有足够的时间,我们就可以生成不同光照条件下各种物体的精确图像,但是这里的关键是实时。例如在飞行模拟系统中,图像的刷新相当重要,同时对图像质量的要求也很高,再加上非常复杂的虚拟环境,问题就变得相当困难。

  显示

  人看周围的世界时,由于两只眼睛的位置不同,得到的图像略有不同,这些图像在脑子里融合起来,就形成了一个关于周围世界的整体景象,这个景象中包括了距离远近的信息。当然,距离信息也可以通过其他方法获得,例如眼睛焦距的远近、物体大小的比较等。

  在VR系统中,双目立体视觉起了很大作用。用户的两只眼睛看到的不同图像是分别产生的,显示在不同的显示器上。有的系统采用单个显示器,但用户带上特殊的眼镜后,一只眼睛只能看到奇数帧图像,另一只眼睛只能看到偶数帧图像,奇、偶帧之间的不同也就是视差就产生了立体感。

  用户(头、眼)的跟踪:在人造环境中,每个物体相对于系统的坐标系都有一个位置与姿态,而用户也是如此。用户看到的景象是由用户的位置和头(眼)的方向来确定的。

  跟踪头部运动的虚拟现实头套:在传统的计算机图形技术中,视场的改变是通过鼠标键盘来实现的,用户的视觉系统和运动感知系统是分离的,而利用头部跟踪来改变图像的视角,用户的视觉系统和运动感知系统之间就可以联系起来,感觉更逼真。另一个优点是,用户不仅可以通过双目立体视觉去认识环境,而且可以通过头部的运动去观察环境。

  在用户与计算机的交互中,键盘和鼠标是目前最常用的工具,但对于三维空间来说,它们都不太适合。在三维空间中因为有六个自由度,我们很难找出比较直观的办法把鼠标的平面运动映射成三维空间的任意运动。现在,已经有一些设备可以提供六个自由度,如3Space数字化仪和SpaceBall空间球等。另外一些性能比较优异的设备是数据手套和数据衣。

  声音

  人能够很好地判定声源的方向。在水平方向上,我们靠声音的相位差及强度的差别来确定声音的方向,因为声音到达两只耳朵的时间或距离有所不同。常见的立体声效果就是靠左右耳听到在不同位置录制的不同声音来实现的,所以会有一种方向感。现实生活里,当头部转动时,听到的声音的方向就会改变。但目前在VR系统中,声音的方向与用户头部的运动无关。

  感觉反馈

  在一个VR系统中,用户可以看到一个虚拟的杯子。你可以设法去抓住它,但是你的手没有真正接触杯子的感觉,并有可能穿过虚拟杯子的“表面”,而这在现实生活中是不可能的。解决这一问题的常用装置是在手套内层安装一些可以振动的触点来模拟触觉。

  语音

  在VR系统中,语音的输入输出也很重要。这就要求虚拟环境能听懂人的语言,并能与人实时交互。而让计算机识别人的语音是相当困难的,因为语音信号和自然语言信号有其“多边性”和复杂性。例如,连续语音中词与词之间没有明显的停顿,同一词、同一字的发音受前后词、字的影响,不仅不同人说同一词会有所不同,就是同一人发音也会受到心理、生理和环境的影响而有所不同。

  使用人的自然语言作为计算机输入目前有两个问题,首先是效率问题,为便于计算机理解,输入的语音可能会相当啰嗦。其次是正确性问题,计算机理解语音的方法是对比匹配,而没有人的智能。

  >>>下一页更多精彩“vr的医学应用”

Copyright @ 2006 - 2018 学习啦 All Rights Reserved

学习啦 版权所有 粤ICP备15032933号-1

我们采用的作品包括内容和图片全部来源于网络用户和读者投稿,我们不确定投稿用户享有完全著作权,根据《信息网络传播权保护条例》,如果侵犯了您的权利,请联系:xuexila888@qq.com,我站将及时删除。

学习啦 学习啦

回到顶部
博评网