Method for controlling password input based on eye-gaze tracking

A password input and gaze tracking technology, applied in the input/output of user/computer interaction, instrument, mechanical mode conversion, etc., can solve problems such as loss, achieve the effect of preventing theft, high security, and avoiding cross infection

Inactive Publication Date: 2011-07-20
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

They can spy from different angles, secretly install pinhole cameras to film the password input process, attach a thin film for fingerprint extraction on the keyboard or s...

Method used

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  • Method for controlling password input based on eye-gaze tracking
  • Method for controlling password input based on eye-gaze tracking
  • Method for controlling password input based on eye-gaze tracking

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Embodiment Construction

[0025] The realization of the password input control method based on line of sight tracking in the present invention requires a figure 2 The password input system shown, the system includes a display screen capable of displaying a password input keyboard and other operation buttons, and a camera is placed in the middle of the lower border of the display screen for shooting face images; An infrared light source is placed in the lower left corner, lower right corner, and upper left corner of the screen. The infrared light sources in the lower left and lower right corners are used to estimate the gaze point position on the screen from the characteristics of the human eye, and the infrared light source in the upper left corner is used as a reference. Target position, used for correction of line-of-sight estimation.

[0026] figure 1 The principle frame diagram of the password input control method based on line of sight tracking of the present invention is provided, and the speci...

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Abstract

The invention provides a method for controlling the password input based on eye-gaze tracking, specifically comprising the following steps of: (1) preprocessing face images and extracting eye characteristic parameters: detecting a face according to face structure characteristics, and extracting the eye characteristic parameters in a face area according with the face structure characteristics; (2)estimating the current fixation point position: realizing the estimation from the eye characteristic parameters to the current fixation point position by using double light source eye-gaze tracking based on similar triangles; and (3) controlling a password input operation according to the fixation point position: controlling the password input operation by utilizing a time threshold and sound feedback according to the fixation point position. The invention can effectively prevent user password from being stolen, avoids the cross infection among different individuals by residual bacterial virus on a keyboard because the password is not inputted through the keyboard and has the characteristics of simpleness, convenience and higher safety.

Description

technical field [0001] The invention relates to a password input control method, which belongs to the technical field of video, multimedia signal processing and intelligent control. Background technique [0002] With the development of science and the need for information confidentiality, password input systems have become an indispensable part of people's lives, such as account password input in financial transactions, anti-theft door password input, unlock passwords for mobile phones or computers, and personal confidentiality or privacy. The access password input of documents, etc. provide security guarantees for people's property, business secrets or personal privacy. [0003] However, the more and more extensive application of the password input system also has many potential safety hazards while bringing convenience to people. Because current password input system all will use password keypad or touch-screen system to carry out password input, and this is all inseparab...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06F3/01
Inventor 孙建德杨彩霞刘琚张杰
Owner SHANDONG UNIV
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