Sensor for In-Motion Continuous 3D Shape Measurement Based on Dual Line-Scan Cameras

Area of Science:

• Engineering
• Computer Vision
• Metrology

Background:

• Three-dimensional (3D) surface data acquisition is crucial for industrial applications.
• Existing 3D shape measurement techniques face challenges with large-scale or high-speed moving objects.
• Line scan technology offers potential for ultra-high resolution and line rate measurements.

Purpose of the Study:

• To introduce and investigate a new sensor for in-motion continuous 3D shape measurement.
• To explore the principle and structure of a dual line-scan camera sensor.
• To address image matching strategies and analyze matching errors for improved accuracy.

Main Methods:

• Development of a sensor utilizing dual line-scan cameras.
• Investigation of the sensor's operational principle and structural design.
• Implementation and analysis of an image matching strategy to minimize errors.

Main Results:

• The developed sensor enables continuous 3D shape measurement during motion.
• Experimental verification demonstrates the sensor's effectiveness.
• High-quality 3D surface data acquisition was achieved.

Conclusions:

• The dual line-scan camera sensor provides a viable solution for fast 3D measurement of moving objects.
• This technology enhances industrial capabilities in capturing large-scale and dynamic 3D data.
• Further research into image matching can optimize measurement precision.