Geodesic Photogrammetry System

The Geodesic Photogrammetry System (GPS) is a complete sensor registration system that is integrated with Net Station. The GPS builds on the fast application of Geodesic Sensor Nets and the streamlined workflow of Net Station to make sensor registration easy. With this complete and efficient system, you can smoothly move from the acquisition of EEG to the precise location of sensors and the coregistration of EEG and magnetic resonance imaging data. 

Ease of Use

The GPS uses a precision geodesic dome of 11 cameras to quickly photograph Nets on your patients or subjects. They are then free to go—quickly, without waiting for each sensor on their heads to be touched with a stylus. Later, when it is convenient for you, the GPS accurately digitizes the sensor locations of those Nets.

Accuracy

Use the GPS to improve the accuracy of your sensor locations. Because Photogrammetry is not susceptible to electromagnetic interference (EMI), you can use your system where it suits your lab layout best, without having to worry about data distortion (as experienced by some other systems) caused by nearby EM sources. Using GPS also reduces the human-induced inconsistency and fallibility that is inherent with typical sensor registration systems. Instead of relying on a one-time sitting to accurately register each sensor with a stylus, GPS gives you a series of images that are proof of where each sensor is located. If you make a mistake marking a sensor, you can easily edit your marks to get the registration truly correct.