...视频,最好是逐一翻译,谢谢啦 http://v.youku.com/v_show/id_XOTcy...

发布网友 发布时间：2024-10-23 10:06

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热心网友 时间：2024-10-24 05:12

We present a wearable motion capture system that can acquire motions of an individual of almost anywhere of an extended apprearance of time.
我们演示的是一种可穿携的动作捕捉系统，它几乎能够在任何场合捕捉到个体的实时伸展动作。

Our system consists of an array of small low cost, low power sensors placed on the body of a person. The system is completely autonomous. It does not require any external devices or signal sources. In this prototype, we use 8 signal sources and 18 signal detectors as our sensors.
我们的系统由放置于人体上的一组低成本低能耗的传感器构成。本系统为全自激系统，无需任何外部设置或信号源。本模型中，我们使用8个信号源和18个信号探测器来作为传感器。

Our sources are small ultrasonic transducers that sequentially imitate poses about 16 times per second each.
We use small microphones and signal detectors for the ultrasonic poses.
我们的信号源是小型超音波传感器，以每秒16次的频率有序列地模仿个体姿势。我们将小型麦克风和信号探测器用于超音波姿势。

The detectors also contain 3 access accelerometers and 3 access gyroscopes that sample accelerations and angular velocities about 140 times per second, significantly improving the presicion and frame rate of the ultrasonic measurements. Using the unborn micro processors and the accelerometers and gyro values are digitally encoded and combined with the analog signal from the microphones.
本探测器还包含3个加速计访问通路和3个回转仪访问通路，以每秒约140次的频率采样加速度和角速度，大大改善了超音波计量的精准度和帧频, 使用的是未来微处理器，加速计和回转仪数值以数码化的方式被编译并与麦克风生成的模拟信号结合为一体。

All signal sources and detectors are wired to the driver box. The driver box consists of the following components, 18 second stage amplifier that further amplifies the signal from each of the sensors. 3 six channel agalog to digital converters that sample the signals from 18 sensors and 150 (？)samples per second.
所有信号源与探测器都被连接线连到驱动盒。驱动盒由以下部件构成：18倍级联放大器, 用来更进一步地放大每个源自传感器的信号；3个模拟数字的6通道转换器，用于从18个传感器和每秒115个样品处采样。

The microcontrol()synchronizes all (H)AD converters and generates pose signal for the ultrasonic transducers. The signal from the microcontrol up to the transduers is then amplified by the transducer drivers.
微控制器同步化所有模拟数字转换器并生成传给超音波传感器的姿势信号。从微控制器传至传感器的信号又被传感驱动器放大。

The driver box is powered by a small rechargable battery pack that lasts for more than 4 hours. The data from all (h)ad converters is all transmitted using a USB tool connection to a laptop which records data directly to its hard drive. The driver box in a laptop can be carried in a small backpack. Our prototype system was built from official components for less than 3000 dollars.
驱动盒由小型可充电的电池组供电，电池组可持续供电4小时以上。所有来自模拟数字转换器的数据都通过连接在笔记本电脑上的USB工具来转换，电脑则直接将数据记录到硬盘驱动器。笔记本电脑内部的驱动盒可装携在一个小的背包里。我们系统原型所采用的所有部件都是行货，其造价则低于3000美元。

Here is a comparison between our reconstruction and that of a vicon of an optical system. .... In this sequence, distant measurements prevent drift in the left shoulder. .... The mobility of our system allows us to capture motions virtually anywhere, for example while driving a car. ......We were able to track all leans except more detailed and subtle motions. Even motions that are traditonally hard to acquire are captured with ease using our system.
这是一组我公司系统的重组与Vicon公司的视觉系统重组的对照镜头。本组镜头中可看出远距离测量能防止左肩部位的偏移。我公司系统的机动性让我们实际上能在任何场所捕捉动作，比如说在驾驶汽车的时候。我们能捕捉所有的屈伸动作，当然比较细微和隐晦的动作除外。运用我公司系统，甚至一些原本难以捕捉的动作也可以轻松获取了。