Abstract: A washable, wearable biosensor that can gather sensor data, communicate the sensed data by wireless protocols, and permits the analysis of sensed data in real-time as a person goes about their normal lifestyle activities. The biosensor can be worn in multiple positions, can be put on or removed quickly without having to apply or remove gels and adhesives, and provides a snug, comfortable fit to gather data with minimal motion artifacts. The textile, wearable device can support integrated photoplethysmography, skin conductance, motion, and temperature sensors in a small wearable package. The supported sensors may be coupled to utilization devices by channel-sharing wireless protocols to enable the transmission of data from multiple users and multiple sensors (e.g. both sides of body, wrists or hands and feet, or multiple people).

Abstract: A digital computer and method for processing data indicative of images of facial and head movements of a subject to recognize at least one of said movements and to determine at least one mental state of said subject is provided. The outputting instructions for providing to a user information relating to at least one said mental state. A further processing data reflective of input from a user, and based at least in part on said input, confirming or modifying said determination and generating with a transducer an output of humanly perceptible stimuli indicative of said at least one mental state.

Abstract: Method and system for measuring physiological parameters. The method includes capturing a sequence of images of a human face and identifying the location of the face in a frame of the video and establishing a region of interest including the face. Pixels are separated in the region of interest in a frame into at least two channel values forming raw traces over time. The raw traces are decomposed into at least two independent source signals. At least one of the source signals is processed to obtain a physiological parameter.

Abstract: A washable, wearable biosensor that can gather sensor data, communicate the sensed data by wireless protocols, and permits the analysis of sensed data in real-time as a person goes about their normal lifestyle activities. The biosensor can be worn in multiple positions, can be put on or removed quickly without having to apply or remove gels and adhesives, and provides a snug, comfortable fit to gather data with minimal motion artifacts. The textile, wearable device can support integrated photoplethysmography, skin conductance, motion, and temperature sensors in a small wearable package. The supported sensors may be coupled to utilization devices by channel-sharing wireless protocols to enable the transmission of data from multiple users and multiple sensors (e.g. both sides of body, wrists or hands and feet, or multiple people).

Abstract: A skin-conductivity sensor is configured as a wearable device, such as an article of clothing worn on the hand but covering it only partially. The device may include an on-board power source and a source of illumination that provides a continuous visual indication of skin conductivity.

Abstract: Digitally encoded images having common subject matter are spatially related to one another and combined utilizing a projective coordinate transformation, the parameters of which are estimated featurelessly. For a given input image frame, the universe of possible changes in each image point consistent with the projective coordinate transformation is defined and used to find the projective-transformation parameters which, when applied to the input image, make it look most like a target image. The projective model correctly relates images of common (static) subject matter taken by a single camera at a fixed location, free to rotate about its center of projection (e.g., free to rotate about its optical axis, and to pan and tilt) and having a lens free to zoom; and planar scenes recorded by a camera free to move arbitrarily (including translation or other movements of the center of projection itself).