Image calibration method for binocular helmet display

Abstract

The invention discloses an image calibration method for a binocular helmet display, and provides an image calibration platform for the binocular helmet display. The image calibration platform comprises a reference screen, two computers, and software installed in the computers, wherein the computers are provided with keyboards and respectively connected to the optical system of the binocular helmet display through video cables; the software is used for adjusting image parameters; the reference screen is hung in a position farther away from human eyes; and rectangular meshes, of which the length-width ratio is consistent with that of the integral picture of the binocular helmet display, are drawn on the reference screen. The method comprises the following steps: wearing the helmet display, adjusting the distance between a user and the reference screen when the user looks at the planar meshes through a semitransparent filtering reflector of the optical system, and adjusting the image parameters through the software installed in the computers. The invention has the advantages that material objects can be taken as references to adjust the image parameters, so that binocular images can be fused completely; and equipment required to use is common, so that the cost is low, the realization is easy, and the operation is flexible.

Description

【Technical field】 [0001] The invention relates to a head-mounted display, in particular to a method for calibrating images of a binocular head-mounted display. 【Background technique】 [0002] A helmet mounted display (HMD, Head Mounted Display) is a photoelectric display device that is fixedly connected to the helmet, collimates and projects video images and character information onto a transparent display medium (such as a half mirror, goggles), and displays it to the driver. The principle of the helmet display is to enlarge the image produced by the small 2D display through the optical system. Specifically, the light emitted by the small display passes through the convex lens so that the image is refracted to produce a similar distant effect. Use this effect to zoom in on nearby objects for viewing in the distance to achieve the so-called hologram. [0003] Head-mounted displays can improve a driver's situational awareness. Since the helmet-mounted display can directly ...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the effects of optical system processing error, installation error, image content distribution mismatch of the two eyes, image distortion, etc. on binocular display image fusion, and provide an adjustable image distortion parameter, relative position relationship Image calibration method for binocular head-mounted display and content flip direction

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