Dr. Kang Lee and his postdoctoral fellow, Dr. Paul Zheng, developed Transdermal Optical Imaging, the novel technology that uses facial videos captured by conventional cameras and advanced machine learning methodology to extract facial blood flow changes. This methodology was initially used to help conduct lie detection studies with children more naturalistically. Now, the technology has been implemented into a smartphone application in collaboration with NuraLogix Corporation.
Using Transdermal Optical Imaging (TOI), blood flow information can be extracted from the human face with only a conventional video recording. Current research on Transdermal Optical Imaging is focused on testing the applications of this contactless technology in measuring a person’s psychological (e.g., stress, emotions, lies) and physiological (e.g., heart rate, breathing, blood pressure) changes in a variety of situations.
Nuralogix Articles
  1. Transdermal Optical Imaging Reveal Basal Stress via Heart Rate Variability Analysis: A Novel Methodology Comparable to Electrocardiography
  2. Transdermal optical imaging revealed different spatiotemporal patterns of facial cardiovascular activities
  3. Smartphone-Based Blood Pressure Measurement Using Transdermal Optical Imaging Technology
Nuralogix Patents
  1. System and Method for Contactless Blood Pressure Determination
  2. System and Method for Camera-Basde Heart Rate Tracking
  3. System and Method for Detecting Subliminal Facial Responses in Response to Subliminal Stimuli
Learn more about Nuralogix at their website!