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Pupil and light spot positioning method, data calculation method and related device

A pupil positioning and data calculation technology, applied in the field of computer vision, can solve the problems of poor calculation accuracy of core data

Active Publication Date: 2021-07-30
NANCHANG VIRTUAL REALITY RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above situation, it is necessary to provide a pupil and light spot positioning method, a data calculation method and related devices for the problem of poor calculation accuracy of core data in the prior art line of sight tracking algorithm

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  • Pupil and light spot positioning method, data calculation method and related device
  • Pupil and light spot positioning method, data calculation method and related device
  • Pupil and light spot positioning method, data calculation method and related device

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Embodiment Construction

[0097] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0098] These and other aspects of embodiments of the invention will become apparent with reference to the following description and drawings. In these descriptions and drawings, some specific implementations of the embodiments of the present invention are specifically disclosed to represent some ways of implementing the principles of the embodiments of the present invention, but it should be understood that the scope of the embodiments of the present invention is not limited by this limit. On the contrary, the embodiments of the present...

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Abstract

The invention discloses a pupil and light spot positioning method, a data calculation method and a related device. The pupil positioning method comprises the steps: carrying out the feature region extraction of a current near-eye image through a pre-trained deep convolutional neural network model, so as to obtain a pupil region image of a preset size; performing binarization processing on the pupil region image to obtain a preprocessed pupil region image; extracting pupil contour feature points in the preprocessed pupil region image according to an edge extraction algorithm; and performing ellipse fitting on the pupil contour feature points to determine the center position of the pupil; and positioning an accurate area of the pupil through a deep convolutional neural network, performing elliptical boundary fitting on the pupil in the positioning area to obtain a pupil contour, and positioning the center of the pupil. Through the method, noise areas such as eyelashes and irises can be avoided, and the pupil positioning efficiency and accuracy are greatly improved.

Description

technical field [0001] The invention relates to the technical field of computer vision, in particular to a pupil and spot positioning method, a data calculation method and related devices. Background technique [0002] Gaze tracking, also known as eye tracking, is a technology that uses camera equipment to observe the movement of human eyeballs in real time, and estimates the direction of the gaze and the coordinates of the gaze point through a certain method. [0003] At present, the non-interfering eye-tracking technology based on image processing is the main development trend. The pupil center-corneal reflection method is one of the more popular methods in the eye-tracking algorithm at present. This method estimates the line-of-sight direction by calculating the vector between the pupil center and the corneal reflection. However, due to the inherent physiological mechanism of the human eye and the nonlinearity, randomness and complexity of eye movements, it is more diffi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/01G06K9/00G06K9/38G06K9/46G06K9/62G06N3/04G06N3/08
CPCG06F3/013G06N3/08G06V40/193G06V40/197G06V10/28G06V10/44G06N3/045G06F18/241
Inventor 翟进有沈忱
Owner NANCHANG VIRTUAL REALITY RES INST CO LTD