Detection method for binocular parallax in head up display system

Abstract

The invention discloses a detection method for binocular parallax in a head up display (HUD) system. The method comprises the steps that S1, a double-camera optical module is set, wherein the double-camera module is used for simulating the two eyes of a person; S2, the double-camera optical module is placed behind the HUD system; S3, two cameras in the double-camera optical module are used to shoot test images of the HUD system respectively, and the test images are marked as a first detection image and a second detection image respectively; and S4, the position relation between the first detection image and the second detection image is calculated, and a horizontal parallax angle and a vertical parallax angle are calculated according to the position relation. Through the detection method for the binocular parallax in the HUD system, the binocular parallax can be detected precisely and quickly on an HUD production line.

Description

technical field [0001] The invention belongs to the optical detection field of a head-up display system, in particular to a method for detecting binocular parallax in a head-up display system. Background technique [0002] Head Up Display (HUD, Head Up Display) is an early flight aid used in aircraft. Head-up means that the pilot can see the important information he needs without looking down. The head-up display first appeared on military aircraft, reducing the frequency of pilots looking down at the instruments, avoiding interruption of attention and loss of control over situation awareness (Situation Awareness). Due to the convenience of the head-up display and the ability to improve flight safety, civil aviation aircraft have also followed up with the installation. [0003] With the development of science and technology, head-up displays are also increasingly used in cars. The head-up display on the car can display important driving information, such as speed, engine ...

AI Technical Summary

Problems solved by technology

[0004] Binocular parallax of HUD system is a key parameter to evaluate the quality of HUD products. Binocular parallax can be divided into horizontal parallax and vertical parallax. Horizontal parallax can be divided into convergence difference and divergence difference. Generally, the vertical parallax allowed by human eyes is 10′ (about 2.9mrad), the convergence difference is 40' (about 11.6mrad), and the divergence difference is 20' (about 5.8mrad). Visual fatigue, which can be dangerous during vehicle movement

[0005] However, in terms of binocular parallax detection, theodolite is used to test binocular parallax in aviation, but theodolite is not suitable for accurate and fast detection of binocular parallax on the production line. At present, there is no means to detect binocular parallax on the production line.

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