This study introduces an efficient image-based three-dimension motion tracking system for civil
structures. The proposed system consists of hardware (four camcorders, a commercial PC and frame grabber) and software. The effective software and measurement scheme are developed to obtain the dynamic motion with six degrees of freedom. Several laboratory tests were conducted to verify the effectiveness of the proposed system with the maximum error of less than 3%.

• Hoai-Nam Ho(세종대학교 박사과정)
• 이종재(세종대학교 교수, 공학박사) | Lee, Jong Jae Corresponding Author