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Eye tracking device and head-mounted display device

A technology of eye-tracking and infrared light, which is applied in TV, color TV, character and pattern recognition, etc. It can solve problems such as inability to calculate, inability to obtain eye features, blocking iris images, etc., and achieve accurate results

Active Publication Date: 2019-02-05
BEIJING 7INVENSUN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the number of infrared lamps with effective working brightness is large, when the eye tracking device is working on iris recognition, the eyeball image collected by the infrared camera includes more infrared spots, which will partially block the iris image, resulting in failure to obtain all eye features
Or when the number of infrared lamps is small, when the line of sight tracking device is working for line of sight tracking, since the infrared spot on the eyeball image collected by the infrared camera is less, it is easy to collect no infrared spot on the iris area, resulting in the calculation of the line of sight direction. imprecise or impossible to calculate

Method used

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  • Eye tracking device and head-mounted display device
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  • Eye tracking device and head-mounted display device

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Experimental program
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Effect test

Embodiment 1

[0033] Embodiment 1 of the present invention provides a gaze tracking device, such as figure 1 As shown, it includes an infrared camera 101, and also includes an infrared lamp group 102 and a control circuit 103, wherein the control circuit 103 and the infrared lamp group 102 are electrically connected, wherein the infrared lamp group 102 includes at least two infrared lamps 1021 arranged at different positions, Wherein the infrared camera 101 can be electrically connected with the control circuit 103 .

[0034] The infrared camera 101 is used to collect the user's eyeball image when the infrared lamp 1021 is turned on.

[0035] When the above-mentioned gaze tracking device is working and the environment is relatively dark, the infrared camera 101 needs to collect the user's eyeball image when the infrared lamp 1021 is turned on.

[0036] The control circuit 103 is used to respectively control the number of infrared lamps 1021 in the infrared lamp group 102 to reach an effect...

Embodiment 2

[0081] Embodiment 2 of the present invention provides a head-mounted display device, including any eye-tracking device in Embodiment 1, and also includes a head-mounted display device body, the body includes a carrying device, and the carrying device includes a lens group and a display screen, and the lens group includes a left-eye lens or a right-eye lens.

[0082] The lens group can be a convex lens or a concave lens, or goggles to meet the needs of different users, and the display screen is used to display images.

[0083] The line of sight tracking device in Embodiment 1 is used to identify the identity of the user and determine the direction of the user's line of sight. The infrared camera, infrared lamp group and control circuit in the line of sight tracking device can be installed on a circular infrared light board, for To save the design space of the above-mentioned head-mounted display device, the circular infrared lamp board can be designed with an inner diameter sli...

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Abstract

The present invention provides a line-of-sight tracking device and a head-mounted display device, wherein the line-of-sight tracking device includes: an infrared camera, an infrared light set and a control circuit, the control circuit is electrically connected to the infrared light set, and the The infrared lamp group includes at least two infrared lamps arranged in different positions; the infrared camera is used to collect the user's eyeball image when the infrared lamp is on; the control circuit is used to work on the sight tracking device During iris recognition and line of sight tracking, the number of infrared lamps in the infrared lamp group that reaches the effective working brightness is respectively controlled, and the effective working brightness means that the brightness is not less than the threshold brightness. The invention enables the sight tracking device to quickly acquire the user identity when working on iris recognition, and more accurately acquire the user's line of sight direction when working on line of sight tracking.

Description

technical field [0001] The present invention relates to the technical field of electronic equipment, in particular, to a gaze tracking device and a head-mounted display device. Background technique [0002] Existing eye-tracking devices can have both eye-tracking functions and iris recognition functions. On the one hand, the eye-tracking device can obtain the user's line of sight direction, and at the same time can accurately identify the user's identity. [0003] The inventor found in the research that in the prior art, when realizing the gaze tracking function and the iris recognition function, the camera is used to capture the eye area under the condition of infrared fill light to capture the eye image, and then rely on Different image recognition algorithms determine the gaze point of the eyes and user identity information. In these two processes, the number of infrared lights that achieve effective working brightness will not change. The number of infrared lamps with w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06F21/32H04N5/33G06V10/141
CPCH04N5/33G06F21/32G06V40/19G06V10/141G02B27/0093G02B27/0172G06F3/013H04N23/71
Inventor 刘金星黄通兵
Owner BEIJING 7INVENSUN TECH