Modular 3D Scanner with Tilted Optical Sensors
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Solution Overview
Problem
Current 3D scanning technologies are limited in their ability to provide high-quality, cost-effective 3D scanning solutions for a broader audience, as they require specialized knowledge of camera settings and arrangements, and are not adaptable to varying object sizes and details.
Innovation Solution
A 3D scanning device with modular image recording modules and optical sensors, allowing for adjustable inclination and focus of optical sensors, enabling flexible scanning of objects of varying sizes by optimizing image overlap and resolution based on the object's detail density, using a control and evaluation device for photogrammetry processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional fixed camera arrangements are used, then the device structure is simple, but the adaptability to varying object sizes and details is poor
Solution Approach 1:
The patent implements adjustable tilt angles for optical sensors, allowing the scanning device to dynamically adapt its configuration to different object sizes and detail requirements. The tilt angle adjustment mechanism enables the same device to scan both small detailed objects and large objects by changing the sensor orientation, thereby achieving versatility without requiring multiple fixed configurations.
Solution Approach 2:
The patent changes the operational parameters of the optical sensors by allowing adjustment of tilt angles and overlap areas. By varying these parameters according to the object being scanned, the system achieves adaptability to different object sizes and detail levels while using the same physical device structure.
2Manufacturing precision
If fixed overlap areas are used for all sensors, then the device operation is simple, but the manufacturing precision for different detail densities is poor
Solution Approach 1:
The patent applies different overlap areas to different optical sensors based on the local detail density requirements of the object being scanned. Areas with high detail requirements receive sensors with larger overlap areas for higher resolution, while areas with less detail requirements use sensors with smaller overlap areas. This local optimization achieves high scanning precision without requiring complex manual configuration.
Solution Approach 2:
The control unit automatically determines and assigns appropriate overlap areas to each optical sensor based on the scanned object's characteristics. The system performs self-configuration, selecting optimal overlap areas without requiring manual intervention, thereby achieving high precision while keeping the operation simple through automated decision-making.
3Ease of operation
If specialized knowledge of camera settings is required, then the image quality can be optimized, but the ease of operation for general users is poor
Solution Approach 1:
The control unit automatically optimizes camera settings and overlap areas based on the scanned object, eliminating the need for users to have specialized knowledge. The system performs self-configuration and automatic optimization, delivering high-quality images while maintaining simple operation through automated parameter selection and adjustment.
4Measurement precision
If high overlap areas are used for all sensors, then the object resolution is high, but the processing time and data volume increase
Solution Approach 1:
The patent applies high overlap areas only to optical sensors scanning areas with high detail requirements, while using smaller overlap areas for areas with less detail. This localized approach maintains high resolution where needed while reducing overall data volume and processing time, achieving an optimal balance between quality and efficiency.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution allows for high-resolution scanning of objects with greater flexibility in size and detail, enabling detailed or overview images as needed, and reduces processing time through customizable presets and efficient data processing, making 3D scanning more accessible and cost-effective.
Implementation Method 1
The control and evaluation unit is also configured for evaluating the individual images from the image acquisition devices in order to create a complete image of the object to be scanned using photogrammetry
Data Source
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AI summary
According to the invention, a 3D scanning device (1) is proposed which has a plurality of image acquisition modules (10) connected to one another via connecting elements (20), wherein the connecting elements (20) together with the image acquisition modules (10) surround an inner scan area (50) of the 3D scanning device (1). Each image acquisition module (10) comprises a plurality of vertically stacked image acquisition devices (100). Each image acquisition device (100) comprises several optical sensors (120) arranged on a horizontal axis, an actuating device configured to vary the tilt angle of the optical sensors (120), and a sensor controller for controlling the actuating device and for setting and triggering the image acquisition of the optical sensors (120).Furthermore, the 3D scanning device (1) has a control and evaluation device (30) for controlling and evaluating the images of the image acquisition devices (100), wherein the control and evaluation device (30) is configured to control and align each image acquisition device (100) separately and individually.