-
公开(公告)号:US20100158352A1
公开(公告)日:2010-06-24
申请号:US12489970
申请日:2009-06-23
申请人: Jung-Jae YU , Jae-Hean Kim , Hye-mi Kim , Il-Kwon Jeong
发明人: Jung-Jae YU , Jae-Hean Kim , Hye-mi Kim , Il-Kwon Jeong
CPC分类号: H04N5/2224 , G06T7/246 , G06T7/277 , G06T2207/10016
摘要: A camera tracking apparatus for calculating in real time feature information and camera motion information based on an input image includes a global camera tracking unit for computing a global feature map having feature information on entire feature points; a local camera tracking unit for computing in real time a local feature map having feature information on a part of the entire feature points; a global feature map update unit for receiving the computed feature information from the global and local camera tracking units to update the global feature map; and a local feature selection unit for receiving the updated feature information from the global feature map update unit to select in real time the feature points contained in the local feature map. The local camera tracking unit computes the local feature map for each frame, while the global camera tracking unit computes the global feature map over frames.
摘要翻译: 一种用于基于输入图像计算实时特征信息和相机运动信息的相机跟踪装置,包括用于计算具有关于整个特征点的特征信息的全局特征图的全局相机跟踪单元; 本地相机跟踪单元,用于实时地计算具有关于整个特征点的一部分的特征信息的局部特征图; 全局特征图更新单元,用于从全局和本地相机跟踪单元接收计算出的特征信息以更新全局特征图; 以及本地特征选择单元,用于从全局特征图更新单元接收更新的特征信息,以实时选择包含在本地特征图中的特征点。 本地摄像机跟踪单元计算每个帧的局部特征图,而全局摄像机跟踪单元通过帧计算全局特征图。