3D Printing Image Orientation Correction via Identification Marks
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Solution Overview
Problem
Existing three-dimensional printing systems require precise alignment of the imaging device with respect to the printing table, limiting flexibility in positioning and orientation, which can lead to deviations in the printed image's position and orientation if the object is not placed at the reference position and orientation.
Innovation Solution
A processing system that includes a support table with identification marks and a controller capable of capturing images from various positions and orientations, converting the image to a reference positional relationship, and displaying the converted image with processing data in an overlapping manner to ensure accurate positioning and orientation of the processing target.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the imaging device is required to be precisely aligned with the printing table at a fixed position and orientation, then the measurement precision of the processing target is improved, but the ease of operation and flexibility in positioning are worsened
Solution Approach 1:
The patent introduces identification marks as an intermediary element between the imaging device and the processing target. These marks are placed on the support surface and serve as reference points that enable the imaging device to capture images from any position or orientation. The identification marks mediate the relationship between the flexible imaging device positioning and the precise measurement requirement, allowing the system to determine the processing target's position and orientation accurately without constraining the imaging device's placement
Solution Approach 2:
The patent changes the parameter of imaging device positioning from fixed to variable. Instead of requiring the imaging device to be at a specific position and orientation, the system allows the device to be placed anywhere and processes images captured at various positions and orientations through conversion to a reference coordinate system. This parameter change enables flexibility in operation while maintaining measurement precision through computational correction
2Ease of operation
If the imaging device can capture images from various positions and orientations, then the ease of operation is improved, but the manufacturing precision of the printed image may be worsened due to positioning deviations
Solution Approach 1:
The patent implements a feedback mechanism where the imaging device captures the actual position and orientation of the processing target through identification marks, this information is processed to determine deviation from the reference position, and then printing parameters are adjusted accordingly. The controller uses this feedback to correct positioning deviations and ensure accurate printing even when the imaging device is placed at non-reference positions
Solution Approach 2:
The patent performs preliminary actions by capturing an image of the processing target and identification marks before printing, converting this image to determine the actual position and orientation, and calculating the necessary correction parameters in advance. This preliminary positioning and orientation determination allows the system to pre-adjust printing parameters to compensate for any deviations, ensuring manufacturing precision is maintained
3Device complexity
If the detector position and orientation are fixed relative to the printing table, then the device complexity is reduced, but the adaptability to different object positions is worsened
Solution Approach 1:
The patent creates a copied reference system by placing identification marks on the support surface that replicate the reference coordinate system. Instead of requiring the imaging device to be precisely positioned relative to the printing table, the system uses these copied reference marks to establish a local coordinate system that can be detected from any position. This copying approach simplifies the imaging system while maintaining adaptability to different object positions
Data Source
AI summary
A processing system includes a processing device including a support surface to support a processing target and including identification marks having a reference positional relationship, and a controller. The controller is configured or programmed to include an acquirer to acquire a captured image of the support surface captured by an imaging device and including the identification marks and the processing target supported by the support surface, an identifier to identify positions of the identification marks in an orientation of the captured image, a converter to convert the orientation of the captured image such that a positional relationship among the identification marks in the captured image becomes the reference positional relationship to provide a converted captured image, and a display controller to display the converted captured image and a processing image showing contents of processing to be performed on the processing target in an overlapping manner.