Vehicle Vicinity Image Correction via Dynamic Projection Plane
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Solution Overview
Problem
Conventional image display systems suffer from image deformation and quality deterioration when projecting images of a vehicle's vicinity from a virtual viewpoint, particularly due to longitudinal extension of 3D objects, which cannot be adequately corrected without compromising the displayable area.
Innovation Solution
An image processing apparatus that projects captured images onto a virtual projection plane and corrects deformation using a greater correction amount when a user commands image enlargement, ensuring the undisplayed area does not overlap with the enlarged region, thereby maximizing image quality without reducing the displayable area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a bent projection plane with greater inclination is used to suppress deformation, then the correction amount for longitudinal extension increases, but the displayable area in the upper center portion is reduced
Solution Approach 1:
The projection plane angle is made dynamically adjustable based on display conditions. The system switches between a first projection plane angle (smaller) for normal display and a second projection plane angle (greater) when enlargement is requested, allowing optimal deformation correction without permanently sacrificing displayable area
Solution Approach 2:
The system changes the projection plane angle parameter according to different display modes. By adjusting this geometric parameter, the system achieves adequate deformation correction in enlarged views while maintaining sufficient displayable area in normal views
2Manufacturing precision
If the correction amount for suppressing deformation is increased, then the 3D object can be displayed with less strangeness, but the area showing the vicinity of the vehicle is reduced
Solution Approach 1:
The projection plane angle is dynamically adjusted based on display conditions. The system uses a smaller angle for normal display to maintain visible area, and switches to a greater angle when enlargement is requested to improve image accuracy without permanent trade-off
3Device complexity
If image data is projected onto a horizontal plane, then the projection process is simple, but 3D objects are displayed with longitudinal extension deformation
Solution Approach 1:
The system dynamically selects between a horizontal projection plane (simple processing) and a bent projection plane with greater inclination (accurate representation) based on whether enlargement is requested, balancing complexity and accuracy
Solution Approach 2:
The projection plane geometry parameters are changed based on display mode. The system transitions from a horizontal plane configuration to a bent plane configuration with specific inclination angles to achieve accurate 3D object representation when needed
Data Source
AI summary
An image processing apparatus includes: an image processor which: receives a captured-image from an image acquisition part acquiring the captured-image from a camera that captures an image of a vicinity of a vehicle; project data of the captured-image onto a virtual projection plane provided in the vicinity of the vehicle; and correct deformation of the captured-image caused by projection of the captured-image onto the virtual projection plane. In a case of presence of a command indicative of enlarging a portion of the captured-image, the image processor corrects the deformation of the captured-image by using a greater correction amount than that used in a case of absence of the input of the command indicative of enlarging the portion of the captured-image. Accordingly, in a case where a portion of an image of a vicinity of a vehicle is enlarged, deterioration of image quality can be suppressed as much as possible.