Velocity-Matched Image Sensor Motion for Fast Target Imaging
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Solution Overview
Problem
Visual artifacts such as motion blur and wobble are prevalent in imaging systems when capturing fast-moving objects, particularly in borescope inspections of aircraft engines, leading to reduced clarity and accuracy of captured images.
Innovation Solution
A velocity matching imaging system is employed, where an image sensor is synchronized with the motion of the target element by using an actuator to move the sensor at a similar speed and direction, minimizing relative motion and reducing imaging artifacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a rolling shutter camera is used to capture fast moving objects, then the imaging system can operate with simpler structure, but motion blur, wobble, spatial aliasing, and temporal aliasing are introduced reducing clarity and accuracy
Solution Approach 1:
The patent applies dynamics by making the imaging system adaptable to the motion characteristics of the target. The system dynamically adjusts the imaging parameters (exposure timing, sensor positioning) to match the motion pattern of the target object, transforming a static imaging system into one that can dynamically compensate for motion effects.
Solution Approach 2:
The patent changes key imaging parameters including exposure time, sensor position, and imaging frequency to synchronize with the target's motion velocity. By adjusting these parameters dynamically, the system eliminates motion blur and aliasing effects while maintaining structural simplicity.
2Device complexity
If the image sensor is stationary while capturing moving target elements, then the device complexity is reduced, but motion blur artifacts are introduced reducing image quality
Solution Approach 1:
The system dynamically positions the image sensor to match the target's motion trajectory. The sensor moves along a path that mirrors the target object's motion, effectively transforming the relative motion between sensor and target into a stationary relationship during the exposure period, eliminating motion blur without requiring complex stabilization mechanisms.
Solution Approach 2:
The system employs feedback mechanisms to continuously monitor the target's position and velocity, adjusting the sensor's movement accordingly. This closed-loop control ensures the sensor maintains optimal positioning relative to the moving target throughout the imaging process.
Data Source
AI summary
A system may include an image sensor. A system may include an actuator configured to cause a controlled movement of the image sensor relative to a target element, the controlled movement being based on an operating velocity of the target element relative to an initial position of the image sensor. A system may include a controller communicatively coupled to the image sensor, the controller configured to: identify the operating velocity, determine an activation time to activate the image sensor for a designated exposure time based on the operating velocity and the controlled movement; and activate the image sensor at the activation time.