| e-mail: cornelius.malerczyk@zgdv.de | http://www.zgdv.de |
Keywords: 3d Reconstruction, Digital Video Broadcast, Camera Calibration, Motion Estimation, Computer Vision
Abstract
As the capabilities of video standards and receiver hardware are increasing
towards integrated 3d animations, generating realistic content is now becoming
a limiting factor. In this paper we present a new technique of generating
3d content from reality, i.e. from video sequences acquired with normal
TV cameras. The major aim is to provide the TV viewer with animated 3d
reconstructions of athletic events in MPEG-4 over Digital Video Broadcast
(DVB), which allows for an immersive experience via free navigation and
interaction on the receiver side. As intervention in the actual scene,
e.g. by markers, is often prohibited, markerless computer vision techniques
are used on the images from normal broadcasting cameras for the accurate
estimation of an athlete’s movements. The paper focuses on the key components
for the realistic reconstruction of 3d geometric features, which are the
calibration of moving TV cameras and the modelling of the moving athlete
in its environment.