Polhemus FastScan
FastScan是一款三度空间的模型扫描仪，可以扫瞄以往3D扫描仪无法扫描的地方。FastScan结合了FASTRAKR的动态追踪科技，可用来测定扫描仪的位置与方位，因此可以配合多次的扫描数据来重建物体的3D模型。FastScan亦可以扫瞄移动中的物体，而且对于非金属物体的扫描效果特别理想。
polhemus fastscan software
规格
| 配备 | Custom electronics video processor Polhemus FASTRAKR magnetic tracker |
| 尺寸 | 450 mm (18 in) in length 2 miniature monochrome cameras 1 laser diode: 670 nm, 1 mW, Class II Tracker Receiver |
| 系统 | Tracker Transmitter Tracker Receiver for attachment to movable objects |
| 接口 | Connects to ECP capable parallel port (LPT1), additional card available (LPT2) DMA ECP driver provided |
| 软件 | 3D graphics: point, wireframe, flat or smooth surface display 3D controls: rotate, zoom, center scan Selectable resolution, faceted surface simplification, outlier removal Export polygon mesh to 3D Studio MaxR, ASCII Points, AutoCAD Points and 3D Faces, IGES Points, Lightwave Object, Matlab Mesh, STL, Virtual Reality Modeling Language, Wavefront Object, Open Inventor and others. |
| 解析度 | Laser line length increases with Wand-Object range, typically ..150 mm at 200 mm range (6 in at 8 in) Resolution along the laser line depends on Wand-Object range, typically 0.5 mm at 200 mm range (0.02 in at 8 in) Scanning speed is 50 lines/sec, line-to-line resolution depends on scanning speed, typically 1 mm at 50 mm/sec (0.04 in at 2 in/sec). Resolution |
| 范围 | Up to 760 mm (30 in) Wand-Transmitter and Receiver - Transmitter range 75 mm to 680 mm (3 in to 27 in) Wand-Object range |
| 准确度 | With Transmitter as Reference, accuracy depends on Wand-Object range, typically 1 mm at 200 mm range (0.04 in at 8 in) With Receiver as Reference, accuracy also depends on Receiver-Object range |
| 环境 | Operation in the presence of metal objects or electromagnetic fields may interfere with the scanner＇s tracking and degrade performance. Providing the Transmitter, Wand and Receiver are kept sufficiently far from metal objects or fields they should not pose a problem. Because scanning relies on the cameras seeing the laser line, some surfaces may not be suitable for laser scanning, eg. translucent, reflective, dark or deeply convoluted surfaces. |
| 最低系统需求 | Pentium II, 266MHz, CD-ROM, 64MB RAM minimum, ECP capable parallel port, Windows NT 4, preferably OpenGL accelerated graphics card |
