Industrial Imaging Control Using Axis Shift Image Synthesis
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Solution Overview
Problem
Existing imaging devices that capture high-quality images are expensive, and methods to achieve high-resolution images with accurate color information are costly due to the need for complex interpolation techniques.
Innovation Solution
An industrial system control device that controls an imaging device and industrial machines with drive axes to capture multiple images at specific displacement amounts, combining them to form a high-quality composite image without moving the imaging element, thereby reducing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If an imaging device with high resolution is used to capture images with accurate color information, then the image quality is improved, but the device cost increases
Solution Approach 1:
The imaging process is segmented into multiple captures at different positions. Instead of using a single expensive high-resolution imaging element, the system divides the imaging task into multiple lower-resolution captures that are later combined through image composition to achieve high-resolution output.
Solution Approach 2:
The system adds the dimension of time and spatial displacement to the imaging process. By capturing images at multiple discrete positions and combining them, the system achieves high resolution without requiring a single expensive high-resolution sensor, effectively trading temporal and spatial resources for spatial resolution.
2Device complexity
If color interpolation is performed based on surrounding pixels to obtain missing color information, then the image processing is simplified, but false colors occur and color accuracy deteriorates
Solution Approach 1:
The system performs preliminary actions by capturing images at multiple predetermined positions before composition. By pre-capturing images at specific displacements (e.g., half-pixel shifts), the system ensures that all necessary color information is already present in the captured data, eliminating the need for inaccurate interpolation during processing.
Solution Approach 2:
The system creates multiple copies of the scene from different positions and combines them. Instead of interpolating missing color data in a single image, the system captures actual copies of the scene at different displacements and uses these real measurements to construct the final high-resolution image with accurate color information.
3Measurement precision
If multiple images are captured and combined to achieve high quality, then image quality is improved, but the imaging time increases
Solution Approach 1:
The imaging process uses periodic action by capturing images at regularly spaced intervals along the displacement path. The imaging device captures images at predetermined positions (e.g., every half-pixel distance) and combines them periodically to produce the final high-resolution image, maintaining efficiency through regular sampling.
Solution Approach 2:
The industrial machine's drive axes, which are already part of the system for other purposes, are utilized to provide the necessary displacements for multi-position imaging. This self-service approach allows the system to perform high-quality imaging without adding dedicated positioning mechanisms, thereby reducing overall system complexity and potential imaging time.
4Measurement precision
If the imaging element is moved to capture images at different positions, then high resolution is achieved, but the device complexity and cost increase
Solution Approach 1:
Instead of moving the imaging element to capture images at different positions (which would require complex positioning mechanisms), the system inverts the approach by keeping the imaging element stationary and moving the object (or the imaging device body) using existing drive axes. This inversion eliminates the need for additional precision positioning mechanisms while achieving the same relative displacement effect.
Solution Approach 2:
The system uses the existing drive axes of the industrial machine for multiple purposes: both for the primary industrial function and for providing the precise displacements needed for high-resolution imaging. This multi-functionality approach eliminates the need for dedicated imaging positioning mechanisms, reducing device complexity and cost.
Data Source
AI summary
One aspect of the present disclosure is an industrial system control device that controls: an imaging device that has an imaging element that generates captured images by capturing video of an object of which an image is formed at an imaging surface; and at least one industrial machine that has a plurality of drive axes that produce relative movement between the imaging device and the object. The industrial system control device comprises an imaging count determination unit that determines an imaging count for the imaging device, an imaging instruction unit that instructs the imaging device to perform imaging, a displacement amount determination unit that determines necessary displacement amounts for the image formation position of the object at the imaging surface, a drive amount calculation unit that calculates drive amounts for the drive axes to displace the image formation position of the object exactly the displacement amounts, a drive instruction unit that instructs the drive axes to perform drive of exactly the drive amounts, an operation adjustment unit that, before and after the drive instruction unit performs drive instruction, repeatedly makes the imaging instruction unit perform imaging instruction until the imaging count is reached, and an image synthesis unit that synthesizes a plurality of captured images captured by the imaging device to produce a single synthesized image.