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Fixation point function determination method, fixation point determination method and device and terminal device

A technology for determining methods and devices, which is applied in the field of human-computer interaction, can solve problems such as heavy user workload and reduce user experience, and achieve the effect of saving time and improving calibration experience

Active Publication Date: 2018-12-18
BEIJING 7INVENSUN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, at present, when determining the function of the user's gaze point, the user needs to gaze at several calibration points on the display screen to complete the calibration, the user's workload is heavy, and the user experience is reduced

Method used

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  • Fixation point function determination method, fixation point determination method and device and terminal device
  • Fixation point function determination method, fixation point determination method and device and terminal device
  • Fixation point function determination method, fixation point determination method and device and terminal device

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Embodiment 1

[0036] figure 1 It is a schematic flow chart of a method for determining a gaze point function provided by Embodiment 1 of the present invention. This method is applicable to the situation where the user determines the gaze point function, for example, the situation where the user determines the gaze point function before performing gaze tracking. After the user's gaze point function is determined, the user's gaze point can be determined based on the gaze point function and the measured user's image information (eg, eye image).

[0037] The method can be executed by the apparatus for determining the function of the gaze point, wherein the apparatus for determining the function of the gaze point can be realized by software and / or hardware, and generally integrated on the terminal device. In this embodiment, the terminal devices include but are not limited to: mobile phones, computers, personal digital assistants and other devices.

[0038] Generally, before the terminal device...

Embodiment 2

[0057] Figure 2a It is a schematic flowchart of a method for determining a gaze point function provided by Embodiment 2 of the present invention. This Embodiment 2 is optimized on the basis of the foregoing embodiments. In this embodiment, the gaze point function is estimated according to the eye features in the eye image and the position information of the calibration point to obtain the solution of some parameters in the gaze point function, which is further embodied as: Extracting the eye features in the eye image; estimating a gaze point function according to the eye features and the position information of the calibration point, and obtaining the solution of some parameters in the gaze point function, wherein the part parameters can be It is several parameters randomly selected among the parameters of the gaze point function or several parameters selected according to the principal component analysis results of the historical solution of the gaze point function.

[0058...

Embodiment 3

[0093] image 3 It is a schematic flow chart of a fixation point determination method provided by Embodiment 3 of the present invention. This method is applicable to the situation where a fixation point function is used to determine a fixation point. For example, after the user determines the fixation point function, the gaze point function is used to fix Click OK. The method can be executed by a device for determining a gaze point, wherein the device for determining a gaze point can be implemented by software and / or hardware, and is generally integrated on a terminal device. In this embodiment, the terminal device includes, but is not limited to: a mobile phone, a computer or a personal digital assistant.

[0094] like image 3 As shown, a gaze point determination method provided by Embodiment 3 of the present invention includes the following steps:

[0095] S301. Acquire image information of a user.

[0096] In this embodiment, the image information may be a picture of t...

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Abstract

The invention discloses a fixation point function determination method, a fixation point determination method and device and a terminal device. The method comprises the following steps of: acquiring an eye image when a user gaze at a calibration point; estimating a fixation point function according to the eye feature in the eye image and the position information of the calibration point to obtaina solution of a part of parameters in the fixation point function; acquiring location information of the user, and searching for a historical solution of other parameters in the fixation point function according to the location information of the user; obtaining the fixation point function by substituting the solution of each parameter in the fixation point function. The solution of the partial parameters of the fixation point function can be determined by the position information of the eye image and the calibration point of the user, and then the historical solution of the remaining parameters of the fixation function is determined based on the position information of the user, which effectively reduces the workload of the user looking at multiple calibration points, improves the accuracy of fixation point function determination, and improves the experience of the user in fixation calibration.

Description

technical field [0001] The embodiments of the present invention relate to the field of human-computer interaction technology, and in particular, to a gaze point function determination method, a gaze point determination method, a device, and a terminal device. Background technique [0002] With the development of human-computer interaction technology, eye tracking technology has been widely used. Eye tracking, also known as gaze tracking, is the technique of estimating the line of sight and / or gaze of the eyes by measuring eye movement. [0003] At present, in the fixation point calibration process, in order to determine the parameters to be solved in the fixation point function (also known as calibration parameters, generally corresponding to some intrinsic parameters of the user's eye, such as the curvature of the corneal reflective surface, etc.), the commonly used method Yes: Let the user look at multiple calibration points on the display screen, then obtain the eye imag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/01
CPCG06F3/013
Inventor 付阳王云飞黄通兵
Owner BEIJING 7INVENSUN TECH