Patent ID: 9275276
Filing Date: 2016-03-01
CPC Classification: G06K,G06T

Claim Text:
1. A posture estimation apparatus for estimating a posture of an object formed of a plurality of parts, the posture estimation apparatus comprising: an image input section that acquires an image that is obtained by photographing the object; a posture information database that holds posture information that defines an arrangement of the plurality of parts for each of the postures; a fitting section that, for each of the parts, calculates a degree of correlation between an arrangement of the plurality of parts in the image and the posture information; a difficulty level information table that holds an estimation difficulty level which is a degree of difficulty of estimating respective position of each of the parts for each of the postures and which is calculated based on respective parallel line components of the part that are included in the posture information; and a posture estimation section that assigns a weight based on the estimation difficulty level to the degree of correlation, and that estimates a posture of the object based on the weighted degree of correlation.