Vehicle Display Control Device Height Alignment Correction
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Solution Overview
Problem
Conventional overhead image generation devices cause display deviations in the height direction due to differences in installation heights of image capture units, leading to unnatural image shapes and reduced merchantability.
Innovation Solution
A display control apparatus that includes an image acquisition module, a projection plane acquisition module, a correction module, and an image composition module to align images from different height positions without changing the shape of the virtual projection plane, thereby correcting projection positions based on height differences and maintaining image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the shape of part of the overhead images is changed in the height direction to align horizontal lines, then the deviation of the composite image is solved, but the shape of the edge part of the display image becomes unnatural
Solution Approach 1:
The patent transitions from two-dimensional image shape modification to three-dimensional projection plane adjustment. By changing the projection plane from a flat 2D surface to a 3D curved surface that follows the vehicle's outer shape, the system achieves both precise alignment of images from different height positions and preservation of natural image edges. The 3D projection plane allows images to be mapped onto a spatial surface that naturally accommodates height variations without distorting the visible image boundaries.
2Device complexity
If images from different height positions are projected without correction, then the projection process is simple, but display deviation in the height direction occurs
Solution Approach 1:
The patent applies parameter changes by introducing height position information as a critical variable in the projection process. Images captured at different height positions are projected onto a 3D projection plane with appropriate height corrections applied based on their respective capture heights. This parameter-based correction approach systematically addresses display deviation while maintaining a relatively simple projection workflow, as the height correction can be automatically calculated and applied during the projection process.
Data Source
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AI summary
A display control apparatus includes: an image acquisition module that acquires a first image and a second image, the first image being obtained from a first image capture unit mounted at a first height position of a vehicle, the second image being obtained from a second image capture unit mounted at a second height position differing from the first height position to capture an image of a circumstance in a second direction differing from the first direction; a projection plane acquisition module that acquires a three-dimensional virtual projection plane to which the first image and the second image are projectable, the three-dimensional virtual projection plane including at least a side surface that rises in a height direction from a ground contact surface of the vehicle; a correction module that corrects, in the height direction, on a basis of a difference between the first height position and the second height position, the correction of the projection position being performed to align content of the first image and content of the second image with each other; and an image composition module that generates a three-dimensional composite image including the first image and the second image that have been aligned with each other in the height direction by the correction.