POSITION AND ORIENTATION ESTIMATION METHOD AND APPARATUS THEREFOR

摘要

There is provided a method for accurately estimating a position and orientation of an object even if the object is more dispersive in shape than a three-dimensional geometric model with a standard shape. The statistic of deviation of a feature constituting a three-dimensional model representing a three-dimensional standard shape of an object is estimated to determine a reliability for each feature. The amount of deviation is calculated between the feature extracted from observation data obtained by an imaging apparatus and the feature in the three-dimensional model. The three-dimensional position and orientation of the object is estimated based on the amount of deviation and the reliability related to each feature extracted from the three-dimensional model.