Three-dimensional intraocular holographic automobile head-up display method combined with laser radar data

Abstract

The invention discloses a three-dimensional intraocular holographic automobile head-up display method combined with laser radar data, which comprises the following steps of: S1, scanning a target environment through a laser scanner to obtain radar data, and performing post-processing through RiSCANPro software to generate point cloud data which is composed of a plurality of space sampling points on the surface of an object, the point cloud data comprises echo signal information of each space sampling point, object surface attributes can be reflected through the echo signal information, and each space sampling point in the point cloud data is classified by using an open source Python library, so that object surface attribute classification of the scanned object is realized; performing image processing on the classified point cloud data to obtain a pixel intensity graph and further form a target plane, wherein the target plane comprises laser echo signal information at each position of the object; s2, generating and optimizing a digital hologram of the three-dimensional object through a GS iteration phase retrieval algorithm; and S3, carrying out holographic projection display on the target object by using the intraocular holographic projection device.

Description

technical field [0001] The invention relates to the fields of holographic projection, augmented reality and laser radar, in particular to a three-dimensional intraocular holographic projection device based on digital holography technology and a car head-up display method innovatively integrating laser radar data and augmented reality technology (AR). Background technique [0002] Head-up displays (HUDs), once limited to military and civil aviation, are making inroads into personal transportation as new cars come online with sensors, cameras and intelligent driver-assistance systems. In 1988, Volkswagen developed the first car head-up display, which consisted only of a single-chip display placed on the windshield. In recent years, there have been many new developments in car head-up displays. Driving assistance information such as speed, navigation, and fuel consumption can be projected to the front of the driver's line of sight through the car's head-up display. This safety ...

AI Technical Summary

Problems solved by technology

In this system, the windshield can also be regarded as a free-form surface. Therefore, the asymmetric structure of the windshield and the system will cause large aberrations, which increases the difficulty of optical system design; in addition, This car head-up display system can only present two-dimensional images, and the imaging position is relatively fixed due to the application of the windshield in the imaging process

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