Multi-resolution Aerial Camera System for Reduced Overlap
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Solution Overview
Problem
Existing aerial camera systems require high overlap in aerial photos for accurate photomosaics, which is costly in terms of flying time and processing, and are often aircraft-specific, limiting operational flexibility and image resolution.
Innovation Solution
The HyperCamera system employs a multi-resolution approach with a modular design, using multiple cameras with different focal lengths and angles to capture both overview and detail photos with reduced overlap, allowing for efficient and flexible aerial imaging across various altitudes and aircraft types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If high overlap (60/40) is used to ensure accurate photomosaic, then photomosaic accuracy is improved, but flying time and processing time increase significantly
Solution Approach 1:
The patent segments the imaging task into two distinct components: overview imaging and detail imaging. Overview cameras capture wide-area images with lower resolution, while detail cameras capture narrow-strip images with high resolution. This segmentation allows each component to be optimized independently, with overview images providing the accuracy framework and detail images providing the high-resolution content, thereby reducing the need for high overlap
Solution Approach 2:
The patent applies local quality by assigning different resolution requirements to different regions of the captured scene. The overview portion of the image requires lower resolution and can be captured with minimal overlap, while the detail portion requires high resolution and is captured by dedicated detail cameras. This allows the system to maintain photomosaic accuracy without requiring high overlap across the entire scene
2Adaptability or versatility
If external camera pod is used to reduce overlap, then operational flexibility is improved, but the pod is highly aircraft-specific and space is constrained
Solution Approach 1:
The patent achieves universality by integrating the multi-resolution camera system directly into the aircraft fuselage, utilizing the aircraft's existing structure and camera holes. The system is designed to be aircraft-agnostic, working with various aircraft types without requiring custom external pods. The internal integration allows the system to adapt to different aircraft configurations while maintaining the same core functionality
Solution Approach 2:
The patent employs nesting by placing the camera system within the aircraft's existing structure, utilizing available space inside the fuselage and through existing camera holes. This nested approach eliminates the need for external pods, reducing aerodynamic drag and eliminating aircraft-specific mounting requirements while maintaining all necessary imaging capabilities
3Volume of moving object
If constrained space within pod is used, then device size is reduced, but focal length of camera lenses is limited
Solution Approach 1:
The patent resolves the focal length limitation by transitioning from a two-dimensional constraint (space within a compact pod) to a three-dimensional solution (utilizing the aircraft fuselage volume). The internal aircraft structure provides ample space for long-focal-length lenses and their associated optical paths, eliminating the spatial constraints that would otherwise limit lens selection
Data Source
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AI summary
A system for capturing aerial images, the system comprising at least one camera unit, the camera unit comprising at least one overview camera, a plurality of detail cameras, and a frame for holding the cameras, each detail camera having a longer focal length than the at least one overview camera, each detail camera mounted at a different angle laterally so that the fields of view of the detail cameras overlap to form an extended lateral field of view.