Image Correction Device for Moving Object Camera Position Error
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Solution Overview
Problem
Conventional technologies face challenges in capturing images from cameras mounted on moving objects, such as airborne vehicles, as disturbances like wind can cause positional changes, leading to undesirable image capture results, and existing solutions struggle to accurately correct these issues in real-time.
Innovation Solution
An image correction device that acquires images from moving object cameras, calculates positional differences between scheduled and actual camera positions, and adjusts the image frame to correct for these discrepancies, ensuring the output image appears as if captured from the intended position, by decomposing positional errors into components affecting position and size within the captured image.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If mechanical control is used to stabilize the moving object and camera position, then image capture accuracy is improved, but device complexity and cost increase
Solution Approach 1:
The patent replaces mechanical stabilization systems with an image processing-based correction system. Instead of using complex mechanical controls to physically stabilize the camera position, the invention captures images from disturbed positions and then corrects them through computational methods, substituting mechanical complexity with software-based image processing.
Solution Approach 2:
The patent creates a corrected copy of the captured image that represents what the image would have looked like from the scheduled position. By generating this corrected version through image processing, the system avoids the need for complex mechanical stabilization while still achieving accurate image capture results.
2Measurement precision
If mechanical control systems are implemented to prevent disturbance effects, then image quality is improved, but ease of operation deteriorates
Solution Approach 1:
The patent replaces complex mechanical control operations with automated image processing operations. The system automatically captures images, calculates positional differences, determines correction parameters, and generates corrected images without requiring manual mechanical adjustments, thereby improving ease of operation while maintaining image quality.
3Measurement precision
If the moving object is mechanically controlled to return to scheduled position, then image capture accuracy is improved, but response time increases
Solution Approach 1:
The patent performs preliminary capture of the image from the disturbed position, then quickly processes the correction. Instead of waiting for the moving object to return to the scheduled position (which would cause time loss), the system captures the image immediately and applies computational correction, thereby reducing response time while maintaining accuracy.
Solution Approach 2:
The patent replaces time-consuming mechanical position correction with rapid computational image correction. By substituting mechanical adjustment with software-based image processing, the system achieves faster response times while maintaining the same level of image capture accuracy.
Data Source
AI summary
An image correction device trims an image, which has been captured by a camera provided in a moving object, in accordance with a predetermined image frame to generate a corrected image that is enclosed by the predetermined image frame, and then outputs the corrected image as an output image. Even when there is an error between an actual camera position in which the camera is actually positioned and a scheduled camera position in which the camera is scheduled to be positioned, the image correction device (i) decomposes the error into a first component that extends along an imaging direction of the camera and a second component that extends along a plane orthogonal to the imaging direction, (ii) shifts the image frame in accordance with the first component, and (iii) enlarges or shrinks a size of the image frame in accordance with the second component.