Virtual Camera Imaging With Dynamic Focal Length and Field of View
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Solution Overview
Problem
Existing camera systems for automated valet parking are inefficiently designed for specific scenarios, leading to increased complexity and number of variants, and struggle with flexibility in installation heights and object distances, affecting their effectiveness in diverse environments.
Innovation Solution
A camera system with uniform camera types that can dynamically adjust focal length and field of view in response to changing installation heights and object distances, using virtual cameras and distortion correction methods to optimize image region detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If different camera types are selected for different scenarios (wide-angle for near objects, narrower for distant objects), then object detection accuracy is improved, but device complexity and the number of camera variants increase
Solution Approach 1:
The patent applies universality by using a single camera type with adjustable parameters (focal length, field of view) that can function effectively across multiple scenarios. The camera system can adapt its optical characteristics through parameter changes, eliminating the need for multiple specialized camera variants while maintaining detection accuracy for both near and distant objects
Solution Approach 2:
The patent employs parameter changes by dynamically adjusting the focal length and field of view of the camera lens to optimize image quality for different object distances. This allows a single camera to adapt its optical parameters based on the specific scenario, resolving the contradiction between maintaining high measurement precision across different ranges and reducing device complexity
2Reliability
If camera systems are specifically designed for particular scenarios, then effectiveness for that scenario is improved, but adaptability to different installation conditions deteriorates
Solution Approach 1:
The patent applies dynamics by making the camera system's optical parameters (focal length, field of view) dynamically adjustable rather than fixed. This allows the same camera hardware to adapt to different installation heights and scenarios by changing its optical characteristics in real-time, thereby maintaining reliability across diverse conditions without sacrificing adaptability
3Area of stationary object
If wide-angle field of view is used for near objects, then coverage area is improved, but image distortion increases
Solution Approach 1:
The patent resolves this contradiction by dynamically changing the focal length parameter of the camera lens. When wide coverage is needed, a wider field of view is selected, and when precise imaging is needed, the focal length is adjusted to reduce distortion. This parameter adaptation allows the system to optimize between coverage area and image quality based on the specific operational requirements
Data Source
AI summary
A camera system for increasing the performance of a perception system for image correction of an image region. The camera system includes one or more cameras, wherein one or more cameras include a focal length and a field of view, wherein the one or more cameras include a camera type or a camera variant, wherein the one or more cameras can be positioned at different installation heights or object distances from the camera. A virtual camera and/or virtual image is generated from a camera image using the camera system. The focal length and/or the field of view of the virtual image changes dynamically once during an installation or multiple times when the environmental conditions change, depending on an installation height or the object distance.