Rotating Camera Probe Inspection for Motion-Blur-Free Imaging
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Solution Overview
Problem
Image blurring occurs when using camera probes to inspect select features on objects due to relative motion, and stopping the motion increases inspection time significantly.
Innovation Solution
The camera probe is made rotatable about at least one axis, allowing it to track features of interest by turning while moving relative to the object, thereby slowing the passage of features across its field of view and capturing images during this turning motion, enabling continuous motion and longer exposure times without blurring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the camera probe moves continuously about the object, then inspection time is reduced, but image blurring occurs due to relative motion
Solution Approach 1:
The camera probe is made rotatable about at least one axis to dynamically adjust its orientation during movement. This allows the camera to track features of interest by changing its angular position while maintaining continuous linear motion, thereby capturing sharp images without stopping the inspection process
Solution Approach 2:
The system uses feedback from the measurement apparatus to control the rotational movement of the camera probe. The camera's rotation is coordinated with its linear movement along the inspection path, allowing real-time adjustment of the camera's orientation to keep features of interest centered in the field of view during continuous motion
2Manufacturing precision
If the camera probe stops to capture images, then image blurring is eliminated, but inspection time increases dramatically
Solution Approach 1:
Instead of stopping the camera probe to capture images, the system implements continuous motion with dynamic rotational adjustment. The camera rotates to track features while moving along the inspection path, maintaining sharp images through coordinated motion control rather than stationary capture
Solution Approach 2:
The inspection process maintains continuous motion of the camera probe along the inspection path without interruption. The useful action of image capture occurs during continuous movement by rotating the camera to track features, eliminating idle stopping time while maintaining image quality
3Productivity
If the camera probe moves at high speed, then productivity is improved, but image blurring increases
Solution Approach 1:
The camera probe system allows high-speed linear movement along the inspection path while dynamically rotating the camera to track features. This dynamic orientation adjustment compensates for the high relative velocity between camera and object, maintaining sharp images at high inspection speeds
Solution Approach 2:
The system changes the orientation parameter (angular position) of the camera probe during movement. By adjusting the rotation angle in coordination with linear position and speed, the system maintains optimal imaging conditions even at high velocities, separating the effects of linear speed from image quality
Data Source
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AI summary
A method of inspecting an object with a camera probe for capturing an image of an object, the camera probe being movable along a path by a measurement apparatus, at least a part of the camera probe being rotatable about at least one axis. The method comprises: a) the measurement apparatus moving the camera probe relative to the object along an inspection path and b)for at least one period as the camera probe moves along the inspection path: turning at least a part of the camera probe about the at least one axis thereby slowing the passage of a feature of interest on the object across the camera probe's field of view; and capturing at least one image of the feature of interest during at least a portion of said turning.