Target image positioning method and device and sight line tracking device

A technology of target image and positioning method, which is applied in the directions of graphic reading, instrument, character and pattern recognition, etc., can solve the problem of slow target image positioning speed and so on.

Pending Publication Date: 2019-06-25
BOE TECH GRP CO LTD +1
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  • Claims
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Problems solved by technology

[0004] Embodiments of the present invention provide a target image positioning method and device, and a

Method used

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  • Target image positioning method and device and sight line tracking device
  • Target image positioning method and device and sight line tracking device
  • Target image positioning method and device and sight line tracking device

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Embodiment Construction

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0030] The embodiment of the present invention provides a target image positioning method, such as figure 1 As shown, the target image positioning method includes:

[0031] S10. Extract multiple image blocks from the image to be processed containing the target image.

[0032] It can be understood that the target image here refers to an image whose position is determined by the positioning method. Optionally, the target image is the pupil. ...

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Abstract

The invention provides a target image positioning method and device and a sight line tracking device, relates to the technical field of image detection, and is used for solving the problem that the positioning speed of a target image is low. The target image positioning method comprises the steps of extracting a plurality of image blocks from a to-be-processed image containing a target image; inputting each image block into a first neural network to obtain a probability value of the target image contained in the image block; judging the image block with the maximum probability value as a target image block; and inputting the target image block into a second neural network to obtain the position of the center of the target image.

Description

Technical field [0001] The present invention relates to the technical field of image detection, in particular to a target image positioning method and device, and line-of-sight tracking equipment. Background technique [0002] Target image location and tracking is a hot issue currently studied by technicians. Taking gaze tracking as an example, gaze tracking technology is an important technology in the field of virtual reality. The purpose is to obtain the user’s current gaze direction, which can be collected through gaze tracking technology. Children's focus information, assisting paralyzed patients in human-computer interaction, sight fatigue driving detection, etc. [0003] Pupil positioning is the first step and prerequisite of the gaze tracking process. The accuracy and stability of pupil positioning are critical to the overall performance of the eye tracking system. In the actual pupil positioning process, it will be affected by various interference factors, such as the refl...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/62G06F3/01
Inventor 孙建康张浩陈丽莉薛鸿臻马福强
Owner BOE TECH GRP CO LTD
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