Patent ID: 9122353
Filing Date: 2015-09-01
Classification: G06F

Abstract:
1. A multi-touch method, comprising: in response to at least one finger of a user pointing toward a computer screen, recognizing an eye and at least one finger in an image frame taken by a camera; mapping a first coordinate of the recognized finger in the image frame to a second coordinate of the finger on the computer screen; mapping a third coordinate of the recognized eye in the image frame to a fourth coordinate of the eye on the computer screen; determining whether the fourth coordinate is in the proximity of the second coordinate; in response to a positive decision, determining the second coordinate as a multi-touch point; assigning a unique ID for a multi-touch point corresponding to the second coordinate; sending the ID and the second coordinate as parameters of a multi-touch event to an operating system; in response to recognizing that an adjacent image frame of the image frame contains a multi-touch point, determining whether a multi-touch point contained image sub-block in the adjacent image frame matches a multi-touch point contained image sub-block in the image frame; in response to a positive determining result, identifying the multi-touch point contained in the adjacent image frame with the ID.