CAMERA CALIBRATION BASED ON LIQUID CRYSTAL DISPLAY ( LCD )

This paper presents a novel calibration method based on Liquid Crystal Display (LCD). As a planar pattern, 2D Direct Linear Transformation (2D-DLT) and Self-calibration Bundle Adjustment are used for camera interior parameters solution. Moreover, four key problems were also detailedly analyzed. They are calibration grid, images shooting method, Non-planarity analysis of LCD and accuracy in real surveying. Lots of experiments have been done and, fortunately, good results were obtained.