Measuring Apparatus Dynamic Positioning for Specular Reflection
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Solution Overview
Problem
Three-dimensional measuring apparatuses face challenges with partial saturation and low contrast in captured images due to specular reflection and light absorption, leading to invalid regions that hinder accurate measurement.
Innovation Solution
The apparatus recognizes invalid regions, estimates the object's corresponding portions and light angles, calculates relative positions to avoid saturation or contrast issues, and adjusts its position to capture supplementary data, ensuring accurate and reliable measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the measuring apparatus uses a fixed position for the irradiation device and imaging device, then the device complexity is reduced, but measurement precision deteriorates due to invalid regions caused by specular reflection and light absorption
Solution Approach 1:
The patent applies the dynamics principle by making the irradiation device and imaging device movable through a moving mechanism. The apparatus dynamically adjusts the relative positions of these devices based on detected invalid regions, transitioning from a fixed to a dynamic configuration. This allows the system to optimize measurement angles and eliminate specular reflection issues by changing positions during the measurement process, thereby improving measurement precision without requiring permanently complex mechanical structures.
Solution Approach 2:
The patent implements feedback by using the captured image data to detect invalid regions, then using this information to determine new relative positions for the irradiation and imaging devices. The system continuously monitors measurement quality and adjusts its configuration based on this feedback, creating a closed-loop control system that automatically improves measurement accuracy by eliminating invalid regions through positional adjustments.
2Measurement precision
If the apparatus performs repeated measurements from different positions to eliminate invalid regions, then measurement precision improves, but the time required for measurement increases
Solution Approach 1:
The patent applies preliminary action by performing a preliminary measurement to identify invalid regions before conducting the main measurement. The system uses the captured image data to detect problematic areas and calculate optimal relative positions in advance, then adjusts the device configuration before acquiring the final measurement data. This preliminary analysis prevents the need for multiple repeated measurements, reducing total measurement time while ensuring measurement precision.
3Reliability
If the apparatus captures supplementary data by adjusting position, then measurement precision improves by eliminating invalid regions, but device complexity increases due to the moving mechanism
Solution Approach 1:
The patent applies universality by designing the moving mechanism to serve multiple functions: it enables both the irradiation device and the imaging device to change their relative positions, and it facilitates capture of supplementary data from different angles. This single multi-functional mechanism improves measurement reliability by eliminating invalid regions without requiring separate complex adjustment systems for each device, thereby reducing overall device complexity while maintaining high measurement reliability.
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 approach allows for accurate and reliable three-dimensional shape measurement by eliminating invalid regions, improving measurement accuracy and reducing the need for repeated measurements.
Implementation Method 1
an irradiation device configured to irradiate an object with light
Implementation Method 2
an imaging device configured to capture an image of the object irradiated with the light
Data Source
AI summary
A measuring apparatus includes an irradiation device configured to irradiate an object with light; an imaging device configured to capture an image of the object irradiated with the light and generate captured image data; and circuitry. The circuitry is configured to measure the object based on the captured image data generated by the imaging device; and adjust, with a moving mechanism, relative positions among the object, the irradiation device, and the imaging device in response to a determination that the captured image data includes a region satisfying a predetermined condition.