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Perimeter based on virtual reality technique and view detection method

A virtual reality technology and perimetry technology, which is applied in the fields of eye testing equipment, medical science, diagnosis, etc., can solve the problems of low accuracy, lack of portability, high cost, etc., achieve low hardware cost, improve the overall inspection efficiency, light weight effect

Active Publication Date: 2020-01-07
BEIJING MECHANICAL EQUIP INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] In view of the above-mentioned analysis, the present invention aims to provide a perimetry and field detection method based on virtual reality technology, in order to solve the inadequacy of existing perimetry Problems such as portability, high cost, and low accuracy

Method used

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  • Perimeter based on virtual reality technique and view detection method
  • Perimeter based on virtual reality technique and view detection method
  • Perimeter based on virtual reality technique and view detection method

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Embodiment 1

[0055] A perimetry based on virtual reality technology is disclosed in Embodiment 1 of the present invention, the structural diagram is as follows figure 2 shown. The perimetry includes: perimetry glasses 21, used for displaying a virtual three-dimensional scene image sequence of simulated optical stimulation, and also used for real-time acquisition of subject's eye images; subject trigger device 22, used for when the subject is feeling After receiving the simulated optical stimulus displayed in the visual field test glasses, for example, a button trigger is used to send a trigger signal to the processing device; the processing device 24 is used to receive and analyze whether the subject's eye image meets the fixation condition, If it is satisfied, send the image sequence to the visual field inspection glasses; it is also used to receive the trigger signal, and record the image sequence frame corresponding to the trigger signal; it is also used to process the trigger signal a...

Embodiment 2

[0064] In the second embodiment of the present invention, a visual field detection method based on virtual reality technology is provided, which is realized by using the perimetric field meter in Embodiment 1; the flow chart is as follows Figure 4 As shown, the method includes the following steps:

[0065] Step S1: The subject wears the visual field testing glasses and holds the trigger device to ensure reliable connection between the visual field testing glasses, the subject triggering device and the processing device; when multiple subjects perform visual field testing at the same time, ensure that the visual field testing glasses , Reliable connection between subject trigger device, multi-interface integrated module and processing device;

[0066] Step S2: After the perimetry is powered on, the visual field testing glasses automatically acquire the subject's eye image, and the processing device receives and analyzes whether the subject's eye image satisfies the fixation co...

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Abstract

The invention relates to a perimeter based on a virtual reality technique and a view detection method, belongs to the technical field of view detection and aims to solve the problems that a conventional perimeter is inconvenient to carry over, high in cost, low in precision, and the like. The perimeter comprises view checking glasses, a subject triggering device and a processing device, wherein the view checking glasses are used for displaying virtual three-dimensional scene image sequences of simulated virtual optical stimulation and also used for acquiring eye images of a subject in real time; the subject triggering device is used for transmitting triggering signals to the processing device when the subject senses the simulated virtual optical stimulation displayed in the view checking glasses; and the processing device is used for receiving and analyzing whether the eye images of the subject meet fixation conditions or not, used for transmitting the image sequences to the view checking glasses if the fixation conditions are met, also used for receiving the triggering signals and recording image sequence frames corresponding to the triggering signals and also used for processingthe triggering signals and the image sequence frames corresponding to the triggering signals to obtain view detection results. The perimeter is good in carrying convenience, low in cost and high in precision degree.

Description

technical field [0001] The invention relates to the technical field of visual field detection, in particular to a visual field meter and a visual field detection method based on virtual reality technology. Background technique [0002] Commonly used perimetry (such as figure 1 (shown) generally includes an optical stimulation generating device 11, a subject triggering device 12, an integrated control and analysis processing device 13, and the like. Among them, the optical stimulation generating device is mostly a warehouse-type structure with windows. The inner wall of the warehouse is used as a background screen to send optical stimulation to the subjects through fixed-position stimulation points or projected stimulation points. There is a central point on the inner wall of the warehouse and a camera is installed. For fixation monitoring, a chin rest and a forehead rest are provided at the window opening of the warehouse so that the subject can keep his head position uncha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B3/024A61B3/00A61B3/14
CPCA61B3/024A61B3/0058A61B3/14
Inventor 李大伟李冰耿铭
Owner BEIJING MECHANICAL EQUIP INST