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PPT E Details

PPT-E8 (8 sensor system)

The eight sensor system includes eight optical sensors, a PPT processor computer with control software, cable connections, and four infrared targets. The eight camera system includes the following advantages over the four sensor system: 1) maximum coverage of tracking workspace (practically no ‘dead’ tracking zones), 2) optimal elimination of line-of-sight occlusion, 3) optimal robustness and precision.

PPT-E4 (4 sensor system)

The four sensor system includes four optical sensors, the PPT processing unit, the easy-to-use PPT motion capture software, cable connections, and four infrared targets. The PPT-E system has the following advantages over the original PPT-X system: (1) Higher resolution cameras providing improved sensitivity and accuracy, (2) faster update rates of 180 Hz, (3) improved range up to 20 meters **, (4) ability to track up to 32 targets with up to 32 cameras *.

Features
  • Camera range up to 20 meters **
  • Power over Ethernet (only one cable)
  • Instant calibration
  • Fully wireless targets
  • Up to 32 optical sensors *
  • Sub-millimeter precision
  • Supports 3DOF position, or 6DOF position and orientation with optional sensor cubes
  • Less than 20 milliseconds latency
  • Easy installation
  • Resilience to metallic interference
  • No strobe lights needed
  • Competitive price
  • Improved accuracy, range, and performance

(*) Actual update rate depends on the number of targets and number of cameras. Please contact WorldViz for details on this tradeoff
(**) For a marker to be tracked, it must be visible by two or more cameras. Overall tracking space dimensions are determined by the camera range, camera layout, and background lighting

Ease of Use

The intuitive graphical user interface includes a wizard for instant calibration using a digital calibration board. PPT directly connects to the WorldViz Vizard VR toolkit. DLLs for Windows, and a C source library for Linux are available. Simple streaming or polling via RS-232 serial port 115.2kbs interface, as well as using the industry standard VRPN protocol.

Position & Orientation Tracking

Are you looking for a 6DOF integrated position & orientation real-time tracking solution? WorldViz recommends combining PPT with an inertial orientation technology such as the InertiaCube2™ by InterSense. This hybrid system has proven itself as one of the most powerful and highly reliable full tracking solutions currently available.

Worldviz PPT Calibration Rig
Calibration

Takes 3 minutes. All systems come with an automatic calibration rig (shown below) that automatically calibrates the entire system - all three axes.

Specifications
Sensor type B&W CMOS
Degrees of freedom 3DOF position - standard optical only / 6DOF incl orientation - with optional sensor
Maximum camera range 20 meters **
Suggested tracking space 20 x 20 x 10 meters **
Maximum number of targets Up to 32 independent 3DOF bodies *
Maximum number of cameras System can be expanded to 32 cameras *
Precision < 0.25 millimeters over 3 x 3 x 3 m volume
Accuracy < 0.25 centimeter over 3 x 3 x 3 m volume
Field of view 79 degrees horizontal
Calibration 3 minute process using digital calibration board
Update rate Up to 180 Hz *
Minimum latency 20 milliseconds
Maximum cable length to cameras 200 metres
Interface Ethernet, using VRPN
Ambient conditions Indoor fluorescent only
Size & weight Processor 420 x 370 x 180 mm (10 kg)
Size & weight Sensors 45 x 32 x 92 mm (145 g)
Size & weight Targets 3 x 3 x 5 mm (2 g)
Software support Directly connect to WorldViz Vizard VR toolkit
Specifications

(*) Actual update rate depends on the number of targets and number of cameras. Please contact WorldViz for details on this tradeoff
(**) For a marker to be tracked, it must be visible by two or more cameras. Overall tracking space dimensions are determined by the camera range, camera layout, and background lighting

WorldViz PPT E Cameras