Camera calibration of long image sequences with the presence of occlusions
Tipus de documentComunicació de congrés
Condicions d'accésAccés obert
Camera calibration is a critical problem in applications such as augmented reality and image based model reconstruction. When constructing a 3D model of an object from an uncalibrated video sequence, large amounts of frames and self occlusions of parts of the object are common and difficult problems. In this paper we present a fast and robust algorithm that uses a divide and conquer strategy to split the video sequence into sub-sequences containing only the most relevant frames. Then a robust stratified linear based algorithm is able to calibrate each of the subsequences to a metric structure and finally the subsequences are merged together and a final non-linearoptimization refines the solution. Examples of real datareconstructions are presented.
CitacióSAINZ, M.; Susín, A.; Bagherzadeh, N. Camera calibration of long image sequences with the presence of occlusions. A: IEEE International Conference on Image Processing. "IEEE International Conference on Image Processing". Barcelona: www.icip2003.org, 2003, p. 317-320.