NICOP - The Research and Development of New Calibration Targets for Multi-Camera Digital Image Correlation Systems
Abstract
The Research and Development of New Calibration Targets for Multi-Camera Digital Image Correlation SystemsNote to TD: This is a one-year $50K pilot NICOP project. The proposed effort is to investigate a novel method to address some fundamental issues of using Digital Image Correlation (DIC) system to measure structure deformation of a large curved objects (ships and platforms). Depending on the results of this effort, Dr. Paul Hess (Code 331) will be interested in co-funding a 3-year follow-on effort. a. Technical: Digital Image Correlation (DIC) method utilizes sub-pixel registration to perform accurate full-field deformation measurement. Based on various digital images obtained by optics, electronic imaging system, and scanning probe microscopy, DIC method has become a very powerful tool for determining whole field deformation. The current DIC systems use the traditional calibration target plate to perform camera calibration. There are a number of possible measurement problems. Research into a potentially more versatile non-circular geometrically related multi-camera (MC) DIC system using conic calibration target (CCT) is proposed to accommodate different viewing angles of multi-camera for spatial relationship with the object and camera. b. Relevance: The proposed state-of-the-art research is closely matched with the research needs identified in the US Naval S&T Strategic Plan especially the ~Platform Design and Survivability~ S&T focus area. Fast and accurate determination of the state of stress (and structure deformation) of ships is very important. Aircraft carrier usually has large deck areas to support aircraft operations. Large surface combatant will experience structure deformation in open seas. The proposed effort directly benefit the structural monitoring to ensure sound structure integrity of large surface platforms. c. Coordination: Dr. Paul Hess (ONR Code 331) d. Desired Outcome: (1) fundamental knowledge associated with the new CCT calibration method, (2) results from the lab testing at NTHU to demonstrate the effectiveness of the new calibration method, (3) detail report of the test and analysis results, and (4) potential future collaboration with the US partners to advance state-of-the-art structural monitoring methodology.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Aug 08, 2016
- Source ID
- N629091612064
Entities
People
- Wei-chung Wang
Organizations
- National Tsing Hua University
- Office of Naval Research
- United States Navy