No San KWAK,Seung Yong HYUNG,Woong KWON,Suk June YOON
申请号：
US14151268
公开号：
US20140316252A1
申请日:
2014.01.09
申请国别(地区):
US
年份:
2014
代理人:
摘要：
A marker includes a basal surface, and a plurality of reference lines provided at the basal surface in a longitudinal direction of the basal surface. The reference lines may have different gradients. The marker may be attached to an instrument and a camera may capture an image of the marker. Pose information of the instrument may be estimated based on the captured image.
