Optical 3D Measurement Filter Process Automation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Optical three-dimensional measurement devices lack the ability to automatically select an optimal cut-off filter process, which is necessary for achieving accurate measurements, and they cannot replicate the filter process of probe type roughness meters without additional processing.
Innovation Solution
An optical three-dimensional measurement device with a filter process determination unit that automatically selects a first filter process based on observation conditions and applies it to measurement results, allowing for the selection and application of cut-off filters similar to those used in probe type roughness meters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual filter selection is used in optical three-dimensional measurement devices, then measurement accuracy can be improved through noise elimination, but operator workload and measurement time increase due to manual noise elimination work
Solution Approach 1:
The device automatically determines and applies appropriate filter processes without operator intervention. The filter process determination unit self-selects the optimal filter based on observation conditions, eliminating the need for manual noise elimination work while maintaining measurement accuracy
Solution Approach 2:
The system changes filter parameters automatically based on observation conditions. The filter process determination unit adjusts filter characteristics dynamically according to the specific measurement scenario, optimizing both accuracy and efficiency without manual intervention
2Device complexity
If optical three-dimensional measurement devices apply standard filter processes, then device complexity remains low, but adaptability to different observation conditions deteriorates
Solution Approach 1:
The filter process determination unit changes filter parameters based on observation conditions such as magnification and measurement type. This allows the device to adapt to different scenarios without adding physical complexity, as the adaptation is achieved through software-based parameter adjustment
Solution Approach 2:
A single filter process determination unit handles multiple observation conditions and measurement types. The system provides universal adaptability across different magnifications and measurement scenarios without requiring separate filter mechanisms for each condition
3Measurement precision
If optical three-dimensional measurement devices use higher resolution measurement, then measurement precision improves, but the ability to perform standard roughness analysis deteriorates without appropriate filter processes
Solution Approach 1:
The system changes filter parameters to match standard roughness measurement requirements while maintaining high-resolution optical measurement capabilities. The filter process determination unit selects appropriate cut-off frequencies and filter types to enable standard roughness analysis on high-resolution data
Data Source
AI summary
This is an optical three-dimensional measurement device provided with observation illumination light for illuminating an observation specimen, an object lens for collecting the observation light on the observation specimen and a display unit for displaying an observation image and its measurement result that are obtained via the object lens. The optical three-dimensional measurement device comprises a filter process determination unit for determining a first filter process on the basis of observation conditions used when taking in a three-dimensional image of the observation specimen and a filter process unit for applying the first filter process determined by the filter process determination unit to the measurement image or the measurement result.