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Pupil positioning device and method, display driver of virtual reality equipment

A technology of pupil positioning and camera device, which is applied to the input/output process of instruments, character and pattern recognition, and data processing. The effect of caching

Active Publication Date: 2020-12-04
BOE TECH GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the embodiments of the present invention is to provide a pupil positioning device and method, and a display driver of a virtual reality device to solve the technical problems of high cost and slow processing speed of existing pupil positioning technology equipment

Method used

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  • Pupil positioning device and method, display driver of virtual reality equipment
  • Pupil positioning device and method, display driver of virtual reality equipment
  • Pupil positioning device and method, display driver of virtual reality equipment

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Embodiment Construction

[0070] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0071] Eye tracking technology is based on the image processing method. The camera device (such as CCD camera) installed in front of the eye captures the image of the eye in real time, and obtains the center coordinates of the pupil through image processing. At the same time, the high-brightness spot (purkinje image ) as a reference point. When the eyeball gazes at different positions, the approximately spherical eyeball rotates and the light spot does not move. Using the relationship between the pupi...

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Abstract

Embodiments of the present invention provide a pupil positioning device and method, and a display driver of a virtual reality device. The pupil positioning device includes a preprocessing circuit and a coordinate processing circuit. The preprocessing circuit is used to preprocess the eye image during the transmission of the eye image to obtain all boundary points of the eye image; the coordinate processing circuit is used to connect all the boundary points. Area processing, determine the pupil center coordinates according to the largest connected area. The present invention preprocesses the eye image during the data transmission process, adopts a hardware-based connected area processing method to determine the pupil center coordinates, avoids large data calculations that cause delays, improves the processing speed, shortens the processing time, and saves Storage resources and logic resources are convenient for hardware implementation and integrated in a display driver of a head-mounted virtual reality device.

Description

technical field [0001] The invention relates to the technical field of eye control, in particular to a pupil positioning device and method, and a display driver of a virtual reality device. Background technique [0002] In recent years, virtual reality (Virtual Reality, VR) / augmented reality (Augmented Reality, AR) technologies have been gradually applied to fields such as display, games, and medical treatment. With the development of technology, people's expectations for VR / AR are getting higher and higher. The interaction method of changing the viewing angle by turning the head can no longer bring people a satisfactory product experience. Therefore, many manufacturers are using eye tracking technology Accelerate the deployment to the VR / AR field. [0003] Eye Tracking technology is an intelligent human-computer interaction technology that uses eye movements to control machines. All operations can be completed by "seeing" with eyes. It not only frees hands, but also is the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/77G06T7/62G06T7/13G06T7/136G06F3/01
CPCG06T7/136G06T7/62G06T7/77G06T7/13G06F3/013G06T2207/10004G06T7/11G06T7/155G06T5/30G06V40/193G06V10/457G06T7/73G06T2207/30201G06T1/60
Inventor 杨全
Owner BOE TECH GRP CO LTD
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