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Fixation point calibration method and related equipment

A calibration method and fixation point technology, applied in the field of electronics, can solve the problems of inaccurate fixation point function, without considering the accuracy of calibration data, etc.

Active Publication Date: 2019-12-13
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, usually after the calibration data is collected, the gaze point function is calibrated according to the calibration data without considering whether the calibration data is accurate, so the gaze point function obtained through calibration is not accurate

Method used

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  • Fixation point calibration method and related equipment
  • Fixation point calibration method and related equipment
  • Fixation point calibration method and related equipment

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Embodiment Construction

[0025] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0026] Each will be described in detail below.

[0027] The terms "first", "second", "third" and "fourth" in the specification and claims of the present application and the drawings are used to distinguish different objects, rather than to describe a specific order . Furthermore, the terms "include" and "have", as well as any variations thereof, are ...

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Abstract

The invention discloses a fixation point calibration method and related equipment, applied to an electronic device. The electronic device comprises a display screen and a camera module, and the methodcomprises the following steps: displaying a calibration point on the display screen, and shooting fixation data of a user for fixation at the calibration point through the camera module; analyzing the fixation data to obtain a first bright spot, a first sight line feature vector and a current head posture; determining a first fixation point based on calibration data, an initial fixation point, the first bright spot, the first sight line feature vector and the current head posture; and if the function value of the distance between the first fixation point and the calibration point is smaller than or equal to a first threshold value, determining the first fixation point as an effective fixation point. By adoption of the embodiment of the invention, the accuracy of the fixation point function can be improved.

Description

technical field [0001] The present application relates to the field of electronic technology, in particular to a gaze point calibration method and related equipment. Background technique [0002] Eye tracking is a kind of machine vision technology. When users use eye tracking related equipment for the first time, they need to correct the point of gaze. In the calibration process, it is necessary to carefully watch the gaze point and the head does not move significantly to ensure the validity of the collected calibration data. In the prior art, usually after the calibration data is collected, the gaze point function is calibrated according to the calibration data without considering whether the calibration data is accurate, so the gaze point function obtained through calibration is not accurate. Contents of the invention [0003] Embodiments of the present application provide a fixation point calibration method and related equipment for improving the accuracy of a fixation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/01
CPCG06F3/013
Inventor 刘崇伟陈岩方攀
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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