Huawei Technologies Co., Limited

Calvin John Rubens

Sean Brian Braley

Roeland Petrus Hubertus Vertegaal

Methods and devices are described that enable user interactions using a combination of gaze input and touch input. During display of interactive elements on a display of an electronic device, an estimated gaze location of a gaze input is determined. A target interactive element is identified based on the estimated gaze location. Touch input is detected that traverses a first distance in a first direction. A preview of information related to the target interactive element is displayed, where an amount of the information displayed in the preview is based on the first distance traversed by the touch input.

Methods and devices for interactions using combination gaze and touch inputs

Methods and systems are described for estimating an optimal pupil binarization threshold using adaptive binarization thresholding. The disclosed methods and systems are designed to determine a pupil binarization threshold from a histogram of an eye image. An eye image is obtained and an eye image histogram is computed from the eye image. A pupil region and an iris region are identified in the eye image histogram and the second derivative of the eye image histogram is computed. The pupil binarization threshold is determined based on the second derivative of the eye image histogram, the identified pupil region and the identified iris region and then used to generate a binarized eye image. A pupil contour may be determined from the binarized eye image. The disclosed system may help to overcome challenges associated with robust and precise detection of a pupil contour, for example, in images of varying quality.

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Ottawa, Canada

Calvin John Rubens