The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 16, 2016
Filed:
Dec. 23, 2008
Ching-liang Chiang, Taoyuan, TW;
Chih-feng Hsu, Taoyuan, TW;
Wen-chi Chang, Taoyuan, TW;
HTC Corporation, Taoyuan, TW;
Abstract
A method and system for using an image sensor to control applications on a mobile device is disclosed. The system uses image processing to detect control gestures by the user. Control gestures may include, for example, moving a hand laterally, moving the hand closer or farther away from the camera, or opening and closing a hand. These control motions are linked to user commands to be executed by the application being controlled. The system initializes by storing a background image showing the field of view of the image sensor before any objects are present. It then detects new objects in the field of view by comparing new images to the background image. If a new object is detected, the system waits until the object is stationary in the field of view. After the object is stationary, the system detects if there is a change in the object indicating a control gesture. After detecting a change in the stationary object, the system determines a set of parameters defining the change and matches the parameters to a user command. The parameters may include the object's change in position or size or change in hand state (e.g. open or closed). The system then passes the command to an application to be executed.