Blog by K.Y. Shin

http://www.ee.surrey.ac.uk/CVSSP/VMRG/WandCalibration/에 있는 내용중 일부입니다. Multi-Camera Wand Calibration The use of multiple CCD cameras for generating three-dimensional data of visual scenes is becoming more and more widespread. Once such example is the Prometheus Project, using multiple cameras to generate 3D television content. As part of the project, a fast wand-based method was developed to calibrate the cameras so they can be used for accurate 3D reconstruction. As an aid to researchers working in this area, this site contains linux binaries, a full C++ implementation of the calibration technique, and details of the method. Calibration Wand The calibration wand used in this work is shown on the right. Its purpose is to provide two spheres separated by a known distance and easily distinguishable by their colour. We used two standard tennis balls, spray-painted bright red and bright green. The balls are held a fixed distance apart by a piece of wooden dowel passing through them ...