fusionTrack 500


Real-time  high-speed 335 Hz and low latency 4 ms
High-precision
80 μm RMS up to 2.0 m
Ethernet connection
for both data and power (PoE+)
Open system
 complete access to images and data
Active and passive markers
tracked simultaneously

The fusionTrack 500 is a passive and active, real-time optical pose-tracking system specially designed to detect and track reflective spheres, disks and IR-LEDs in real-time video streams. The fusionTrack is composed of two cameras that observe reflective and/or active fiducials (IR LEDs) simultaneously, and it uses triangulation to calculate their locations with unrivalled precision and with an unparalleled non-interpolated measurement rate of 335 Hz. When several fiducials  are affixed to a marker, the system can determine its pose (position and orientation) with 6 degrees of freedom (x,y,z,α,β,γ).

The fusionTrack SDK enables access to data  in real-time at different stages of processing, including raw images, individual 3D positions of fiducials (reflective spheres and disks / IR-LEDs) and up to the pose of markers. The SDK also provides multi-level fault checking. It allows access to error information in real-time at any processing stage: fiducial occlusion level, stereo de-calibration, marker registration error and more.

The fusionTrack can be customized to fit your requirements (e.g. precision level, acquisition speed, working volume). Moreover, the system is compatible with existing passive image-guided surgical tools that are widely used in the medical field.

Technical specifications


Size528 mm x 80 mm x 85 mm
Weight2160 g
Accuracy(2)0.08 mm RMS up to 2.0m
0.11 mm RMS up to 2.4m
0.15 mm RMS up to 2.8m
0.17 mm 95% CI up to 2.0m
0.22 mm 95% CI up to 2.4m
0.30 mm 95% CI up to 2.8m
Tracking volumeStarts at 700 mm
Measurement rate335 Hz (3)
Latency~4 ms (4)

Hybrid trackingReflective spheres / disks, Active wired and wireless
AcquisitionParallel (all fiducials at the same time)
Resolution2.2 Mp
Max. simultaneous markers(1)Almost unlimited
Max. fiducials per marker5
InterfaceGigabit Ethernet 1000BASE-T (IEEE 802.3ab)
SDKC (DLL), C++, Python
Operating systemsWindows / Linux
Mounting4 x M4 screws + tripod 1/4-20 UNC
Power requirementsPower over Ethernet (PoE+ IEEE 802.3at-2009 type 2): 48V 0.6A 25.5W
Operating temperature15-25°C
ApprovalsElectrical safety
IEC 60601-1 ed3.1 (2012-08-20)
Electromagnetic compatibility
IEC 60601-1-2 ed 4.0 (2014)
CB-Report available
Hardware requirementsIntel(R) Core(TM) i3-6100U CPU @ 2.30GHz
4 GB DDR3 RAM
50 MB (Windows) 30 MB (Unix/Linux) disc space
Window 8.1 (32 and 64 bits supported)
Linux (32 and 64 bits supported), gcc 5.4 or clang 3.8

(1) 16 max recommended to preserve full speed
(2) Based on a single fiducial stepped more than 2000 points throughout the measurement volume at 20°C.

(3) non-interpolated
(4) 3ms image acquisition + ~1ms processing time & data transmission.

Due to continuous improvements, Atracsys reserves the right to modify the information or specifications without prior notice.

Download PDF


fusionTrack 500 – flyer v4

fusionTrack – CB certificate