Projection Image Mapping for Accurate Vehicle Simulator Displays
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Solution Overview
Problem
The existing picture projection methods in related art involve complex and low-accuracy correction processes, requiring multiple cameras to align the projected image with the actual image, which is inefficient and imprecise.
Innovation Solution
A method and apparatus that utilize an image generator to simulate a virtual viewpoint and perform scene rendering, mapping the projected image based on a predefined mapping relationship between the virtual and image spaces, ensuring accurate projection without the need for camera-based corrections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple cameras are used to shoot and compare pictures for projection correction, then the projection picture can be corrected, but the process becomes complex and correction accuracy decreases
Solution Approach 1:
The patent uses a virtual camera to capture a reference image from a virtual viewpoint in the three-dimensional scene, creating a digital copy of what should be projected. This virtual reference image is then compared with the actual projection picture to determine correction parameters, eliminating the need for multiple physical cameras while maintaining correction accuracy
Solution Approach 2:
The patent replaces the mechanical system of multiple physical cameras with a computational approach using virtual viewpoint technology and image processing algorithms. The virtual camera software module captures and processes images digitally, substituting complex mechanical camera setups with software-based solutions that reduce system complexity while improving correction precision
2Manufacturing precision
If traditional camera-based projection correction is used, then projection alignment can be achieved, but the correction process is time-consuming and inefficient
Solution Approach 1:
The patent performs preliminary actions by pre-establishing the mapping relationship between the projection surface and the three-dimensional virtual scene, and pre-capturing the reference image from the virtual viewpoint before actual projection correction is needed. This preparation work enables rapid correction during actual operation, significantly improving efficiency while maintaining accuracy
Solution Approach 2:
The patent replaces time-consuming manual camera alignment and physical measurement processes with automated image processing algorithms and computer vision techniques. The system automatically compares the reference image with the projection picture, calculates correction parameters, and applies adjustments without manual intervention, dramatically increasing correction speed and efficiency
Data Source
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AI summary
Embodiments of this application disclose a picture projection method and apparatus, a device, a storage medium, and a program product, and relate to the field of image processing. The method is performed by a vehicle simulator, the vehicle simulator includes an image generator and a projection device, and the method includes: performing scene rendering by using the image generator based on scene data, to obtain a first scene picture, the scene data indicating a second virtual scene falling within a field of view when a first virtual scene is observed from a first virtual viewpoint, and the first scene picture being located in an image space (301); mapping the first scene picture to a to-be-projected picture by using the image generator based on a first mapping relationship between the first virtual viewpoint and the image space, the to-be-projected picture being located in the image space (302); and performing projection display by using the projection device based on a pixel value corresponding to each coordinate point in the to-be-projected picture, to obtain a projection picture (303). By employing the solutions provided in this application, an accuracy requirement of picture projection can be met.