Vision assisting method and system based on AR (Augmented Reality)

Abstract

The invention provides an AR (Augmented Reality)-based vision assisting method and system, and the method comprises the following steps: obtaining a visual picture of a camera, and displaying the visual picture of the camera on a drawing board of an AR vision assisting device; reducing the captured visual picture on a drawing board of the AR vision assisting device; and establishing a transverse coordinate axis and a longitudinal coordinate axis of the drawing board, and moving the reduced visual picture to a specified position of the drawing board according to the position of the coordinate axis. According to the method and the system, when wearing the AR visual auxiliary device, a person with incomplete vision can obtain a large enough picture to reduce the picture, so that the person with incomplete vision can be ensured to see a complete picture.

Description

technical field [0001] The present invention relates to the technical field of visual aids, in particular to an AR-based visual aid method and system. Background technique [0002] At present, most of the vision aids for low vision patients in the market are optical vision aids. Optical vision aids can be divided into: optical vision aids for distance use and optical vision aids for near use. Distant optical vision aids can magnify distant targets and improve distance vision. The disadvantage is that the field of vision becomes significantly smaller, and it is generally not possible to wear it for walking. Near-use optical vision aids mainly include vertical magnifying glasses, hand-held electronic vision aids, and desktop electronic vision aids. The vertical magnifying glass is mainly used at home, and the operation is simple and convenient. The disadvantage of the vertical magnifying glass is that the magnification is fixed, and the higher the degree of the convex lens...

AI Technical Summary

Problems solved by technology

The magnification ratio of the desktop electronic vision aid is larger than that of the handheld one, the image quality is higher, and the field of view can be adjusted, but it is bulky and inconvenient to carry

[0003] In addition, common electronic vision aid solutions, such as handheld, desktop, etc., based on AR technology, are still at a relatively early stage in terms of functional solutions, and due to the particularity of wearing on the head, only common electronic vision aids are reserved. Basic functions, such as zooming in / out and changing color, sometimes the basic functions cannot meet the needs of users, especially for low-vision patients with incomplete vision. Due to the particularity of AR, although such users can obtain greater Field of view, but the images that can be obtained are still incomplete

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