Vehicle All-Round View Projection for Tilt Distortion Compensation

Solution Overview

Problem

Conventional driver assistance systems for vehicles face image quality distortions when the vehicle is on an inclined plane or tilted due to changes in camera position relative to the normal driving or standing plane, which reduces the quality of the all-round view displayed to the driver.

Innovation Solution

The system dynamically adjusts a bowl-shaped projection surface by rotating and translating it based on detected camera position changes, using a rotation matrix generated from tilt angles to compensate for inclination, ensuring high image quality regardless of vehicle orientation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the vehicle is placed on an inclined plane or tilted by stabilizers, then the vehicle can operate on slopes or fine ground, but image distortions occur due to camera position changes relative to the normal driving plane

Engineering Contradiction:

Improvevehicle operation on slopesVSAvoidimage quality

Core Design Contradiction:

Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The projection surface is made dynamically adjustable rather than fixed. The system continuously adapts the projection surface orientation based on detected vehicle inclination angles, allowing the all-round view generation to maintain image quality regardless of whether the vehicle is on level ground or tilted on slopes.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system changes the parameters of the projection surface (orientation, rotation angles) based on the detected vehicle inclination. By adjusting the projection surface parameters in response to vehicle tilt, the system compensates for camera position changes and maintains accurate all-round view generation.

Inventive Principle:

Principle #35Parameter changes

2Device complexity

If a fixed projection surface is used for all-round view generation, then the system is simple to implement, but image quality degrades when the vehicle inclination changes

Engineering Contradiction:

Improveprojection surface adjustment mechanismVSAvoidimage quality

Core Design Contradiction:

Device complexityVSManufacturing precision

Solution Approach 1:

The system replaces complex mechanical adjustment mechanisms with a computational approach. Instead of physically adjusting camera positions or projection geometry through mechanical means, the system uses image data processing to dynamically transform and project images onto an adjusted virtual projection surface, achieving the same effect through software algorithms.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The projection surface is made dynamically adjustable rather than fixed. The system continuously adapts the projection surface orientation based on detected vehicle inclination angles, allowing the all-round view generation to maintain image quality regardless of whether the vehicle is on level ground or tilted on slopes.

Inventive Principle:

Principle #15Dynamics

3Manufacturing precision

If the projection surface is dynamically adjusted based on camera position changes, then image quality is maintained on inclined planes, but the processing complexity increases

Engineering Contradiction:

Improveimage qualityVSAvoidimage data processing

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

The system replaces complex mechanical adjustment mechanisms with a computational approach. Instead of physically adjusting camera positions or projection geometry through mechanical means, the system uses image data processing to dynamically transform and project images onto an adjusted virtual projection surface, achieving the same effect through software algorithms.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentEP3162966B1Device and method of preparing a view of around a work vehicle

Publication Date: 2023.10.25 CONTINENTAL AUTONOMOUS MOBILITY GERMANY GMBH

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AI summary

Device (1) and method for providing a vehicle all-round view for a vehicle located on a driving plane (FE), comprising vehicle cameras (2) that provide camera images (KB) of a vehicle environment of the vehicle (F), a position detection unit (4) that determines a change in position of at least one vehicle camera (2) relative to the driving plane (FE) of the vehicle (F), and an image data processing unit (3) that projects the camera images (KB) supplied by the vehicle cameras (2) onto a projection surface (PF) to generate the vehicle all-round view, which is adjusted depending on the determined change in position of the vehicle camera (2).