1. Foreign object video detection and alert system and method US Patent 6064429 A.
2. Multispectral imaging system and method for detecting foreign object debris US Patent 20160146741 A1 (Boeing 2014).
3. Systems and methods for identifying foreign objects and debris and defects during fabrication of a composite structure EP 1503206 A1
4. http://www.compositesworld.com/articles/laser-projection-envisioning-more-than-template
5. Non-Contact Ultrasonic Inspection of CFRP Prepregs for Aeronautical Applications During Lay-Up Fabrication” 2013 Joint UFFC, EFTF and PFM Symposium