Abstract: A method includes capturing images of a vehicle driver's face from a driver facing camera and images of a forward road scene from a forward facing camera. The images are analyzed to derive gaze direction data in a vehicle frame of reference. The gaze direction data are statistically collated to determine a frequency distribution of gaze angles. One or more peaks in the frequency distribution are identified and associated with corresponding reference points in the images to determine one or more reference gaze positions in the vehicle frame of reference. The one or more reference gaze positions are correlated with a position of the reference points in a forward facing camera frame of reference to determine a camera pose of a forward facing camera in the vehicle frame of reference.

Abstract: A method of determining the position of eyeballs within an image, the method including the steps of: (a) capturing a time series of image frames illuminated in a predetermined temporal manner by at least two spaced apart light sources, by at least one imaging sensor; (b) processing the image frames to determine specular reflection locations in the image frames; and (c) utilising the time series evolution of the location of the specular reflections to isolate corneal reflections from the determined specular reflection locations.

Abstract: A system and method are provided for actively illuminating and capturing images of an object, such as a driver of a vehicle to reduce glare. The system includes a video imaging camera orientated to generate images of the subject object (e.g., eye(s)) in successive video frames. The system also includes first and second light sources operable to illuminate the object one at a time. The system further includes a processor for processing the image by performing a functional operation to reduce glare in the image. The system may remove glare caused by the illuminators and by external energy sources.

Abstract: A method of reducing the illumination power requirements for an object tracking system, the method including the steps of: (a) determining a current location of the object within a scene; (b) for a future frame: determining a band around the object of interest; determining a start and stop time for when the rolling shutter detector will be sampling the band; and illuminating the object only while the rolling shutter detector is sampling the band; (c) for a future frame predicting the location of the object relative to the tracking system; determining the ambient light levels; and illuminating the object with the minimum optical power required for the object to be imaged suitably for tracking.

Abstract: Described herein is a method of calibrating a display in a head-mounted display system. The system includes a frame for maintaining the display in front of the user's eyes, and one or more lenses disposed between the display and the user's eyes. The method is configured to be performed by a computer processor associated with the head mounted display system and includes the steps of: a) generating a first image on the display based on predetermined parameters, the image including a two dimensional calibration structure identifiable by the user; b) receiving user input to generate a corrected image on the display; c) deriving calibration data based on the received user input and the predetermined parameters; and d) applying the calibration data to subsequent images generated on the display.

Abstract: Described herein is a method of calibrating a display in a head-mounted display system. The system includes a frame for maintaining the display in front of the user's eyes, and one or more lenses disposed between the display and the user's eyes. The method is configured to be performed by a computer processor associated with the head mounted display system and includes the steps of: a) generating a first image on the display based on predetermined parameters, the image including a two dimensional calibration structure identifiable by the user; b) receiving user input to generate a corrected image on the display; c) deriving calibration data based on the received user input and the predetermined parameters; and d) applying the calibration data to subsequent images generated on the display.

Abstract: A method of determining the position of eyeballs within an image, the method including the steps of: (a) capturing a time series of image frames illuminated in a predetermined temporal manner by at least two spaced apart light sources, by at least one imaging sensor; (b) processing the image frames to determine specular reflection locations in the image frames; and (c) utilising the time series evolution of the location of the specular reflections to isolate corneal reflections from the determined specular reflection locations.

Abstract: A method of reducing the illumination power requirements for an object tracking system, the method including the steps of: (a) determining a current location of the object within a scene; (b) for a future frame: determining a band around the object of interest; determining a start and stop time for when the rolling shutter detector will be sampling the band; and illuminating the object only whilst the rolling shutter detector is sampling the band; (c) for a future frame predicting the location of the object relative to the tracking system; determining the ambient light levels; and illuminating the object with the minimum optical power required for the object to be imaged suitably for tracking.

Abstract: A method of calibrating the eye gaze direction of a user, the method including the steps of: (a) monitoring a user's eye gaze direction whilst carrying out a series of predetermined tasks, each of the tasks having an expected subject gaze direction; and (b) correlating the user's eye gaze direction with the expected direction for a statistically significant period of time; (c) calculating, from the correlating step, a series of likely eye gaze direction usage parameters associated with the user.