Search Results for "infrared lock-in thermography"

The main objective of the proposed software solution is to improve the performance in dental diagnosis using infrared lock-in thermography and complex image processing algorithms for the determination of defective zones of teeth. The recorded amplitude profile of the thermal wave shows a maximum corresponding to a heat accumulation in the region where the open micro-gap is found, whereas a minimum in the phase profile is detected. These maxima/minima are convenient indicators that allow to locate surface breaking defects on teeth. ...

Hardware and Software documentation for a new wearable modular multichannel wireless and open source fNIRS instrument. functional Near Infrared Spectroscopy is a comparatively new instrumentation technique for non-invasive optical measurements of local brain activity (metabolism) and is used in various fields in medical and research applications - such as in BCI. Based on the current state of technology, using a continuous wave method and lock-in amplification, the instrument is designed for new level scalable mobile brain activity measurements. ...