HUD projection image display method and device

Abstract

The invention discloses an HUD projection image display method. The method comprises the following steps: setting a projection area of an HUD projection image on a target object; calculating state information of the to-be-superposed object based on a preset coordinate system; wherein the to-be-superposed object is an object in a road condition where the target object is located, and the state information comprises at least one of a coverage area, covered by the projection area, of an area formed by coordinate points of the to-be-superposed object and a distance between the to-be-superposed object and the target object; in the operation process of the target object, adjusting the size of the corresponding HUD projection image according to the state information of the to-be-superposed object; and projecting the HUD projection image of which the size is adjusted to the projection area for display. The invention further discloses an HUD projection image display device, by adopting the embodiment of the invention, the size of the HUD projection image can be adjusted in real time according to the change of the road condition, and the visual experience of a user is improved.

Description

technical field [0001] The present invention relates to the technical field of image projection, in particular to a HUD projection image display method and device. Background technique [0002] With the continuous advancement of technology, Head Up Displays (Head Up Displays, HUDs) have gradually been applied to automobiles, aviation and other fields. The existing mass-produced HUD is usually projected on the windshield to form a virtual image, and the pictures in the HUD are pasted on the virtual image surface for display. Before displaying pictures on the virtual image surface, it is necessary to integrate each coordinate system into a unified coordinate system, and then perform AR projection calculation, so as to present the picture on the virtual image surface in 3D. However, the current 3D images generated by HUD calculations lack the ability to adjust the size of the projected images in real time. When the image projection size is too large or too small, the driver ma...

AI Technical Summary

Problems solved by technology

However, the current 3D images generated by HUD calculations lack the ability to adjust the size of the projected images in real time. When the image projection size is too large or too small, it is easy to cause the driver to feel a foreign body, the visual experience is poor, and it may even cause misjudgment of road conditions.

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