DIC Course Lecture 2
Lecture 2: Metrology, reporting and stereo DIC (duration:1h00)
This session summarizes and reiterates on the import aspects of the following on-line provided courses:
- Lecture 4: Metrology and reporting
- Lecture 5: Stereo DIC
Objectives
- An indepth overview of metrology and reporting in optical measurements
- Get the trainee familiar with the basic concepts underlying a stereovision measurement
Contents
- Concepts of metrology
- Displacements and strains: resolution vs. signal reconstruction
- A DIC convergence study
- An attempt to quantify spatial resolution
- Reporting
- Bases of stereo vision: from 2D to stereovision measurements – Pro’s and Con’s.
- The pinhole camera model and camera parameters
- Calibration procedure
- Geometry of stereovision: Image reconstruction, epipolar constraint and triangulation
- Camera mounting
- Practical guidelines for stereovision measurements: lighting, optimal angling for out-of-plane measurements
Competencies
- The trainee knows how to balance between resolution and spatial resolution
- The trainee has basic skills to start and analyze successfully a multiple camera DIC setup.
