Stereo Image Scanning Device with Rotating Arm
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Solution Overview
Problem
Current stereo image scanning devices can only capture horizontal views and require manual, slow movement to capture upper and lower angles, leading to potential scanning errors due to varying operator speed.
Innovation Solution
A stereo image scanning device with an image capturing unit on an extending arm connected to a surround slide rail, allowing for multiple angle captures at different positions, using stepper motors for precise movement and image processing to produce a complete stereo image.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed stereo image scanning device is used, then the scanning structure is simple and stable, but it can only scan horizontal angles and cannot capture upper and lower angle views
Solution Approach 1:
The patent applies the dynamics principle by transforming the fixed scanning device into a movable one. The extending arm can rotate around the object to capture images from multiple angles including upper and lower views, while the slide rail allows the arm to move along the horizontal direction. This dynamic structure enables the device to adapt to different scanning angle requirements while maintaining operational stability.
Solution Approach 2:
The patent implements dimensionality change by adding rotational movement around the object in addition to the horizontal sliding motion. The extending arm can rotate to cover vertical angles (upper and lower views) while the slide rail provides horizontal positioning, effectively adding a rotational dimension to the originally linear scanning path.
2Reliability
If a hand-held stereo image scanning device is used, then the device is portable and flexible, but the operator's moving speed varies causing scanning errors
Solution Approach 1:
The patent applies feedback control through the controller that coordinates the movement of the extending arm and the image capturing unit. The system automatically controls the rotation angle and horizontal position based on pre-set parameters, providing feedback control to maintain consistent scanning speed and accuracy, eliminating the speed variation problems of manual operation.
Solution Approach 2:
The system implements self-service automation where the controller automatically manages the scanning process. The extending arm and image capturing unit are controlled to move at predetermined speeds and positions, making the system self-regulating and eliminating dependence on operator skill and consistency.
3Productivity
If the extending arm moves quickly around the object, then the scanning efficiency is high, but scanning errors increase due to motion blur and positioning inaccuracies
Solution Approach 1:
The patent applies continuity of useful action by ensuring the image capturing unit continuously captures images throughout the rotation and horizontal movement of the extending arm. The coordinated motion control maintains continuous image acquisition at optimized exposure times, preventing motion blur while maximizing scanning speed and efficiency.
Data Source
AI summary
A stereo image scanning device includes a surround slide rail, an extending arm, at least one image capturing unit and an image processing unit. The surround slide rail is used to surround an object that is located at a geometric center of the surround slide rail. Two ends of the extending arm are connected to the surround slide rail and slid among multiple different scanning positions on the surround slide rail. The at least one image capturing unit is disposed at the extending arm, and the at least one image capturing unit is used to capture multiple images of the object at different multiple angle positions on the extending arm. The image processing unit is electrically connected to the at least one image capturing unit, and the image processing unit is used to receive and process the multiple images, so as to produce a stereo image of the object.