PROBLEM TO BE SOLVED: To provide a body posture estimation device capable of properly estimating a body posture of a photographer irrespective of differences in aspect of movement depending on viewpoint or body construction of the photographer.SOLUTION: The body posture estimation device includes: a camera position posture estimation section 30 that estimates the position and posture of a camera based on a 3D image data and a joint position detection section 32 that estimates the joint position of arms and hands. The body posture estimation device also has a body posture parameter estimation section 34 that estimates body posture parameters of body posture of a photographer at respective points of time based on the position posture parameters of the camera at respective points of time, the joint position of arm and hand at the respective points of time, a body structure model stored in body structure model storage section 26, and the 3D image data at respective point of time.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2016,JPO&INPIT【課題】視点や撮影者の体格の違いによる動作の見え方の違いに対して頑健に、撮影者の骨格姿勢を推定することができる。【解決手段】カメラ位置姿勢推定部30で、三次元画像データに基づいて、カメラ位置姿勢を推定し、関節位置検出部32で、手腕の関節位置を推定する。骨格姿勢パラメータ推定部34で、各時刻のカメラの位置姿勢パラメータと、各時刻の手腕関節位置と、骨格モデル記憶部26に記憶されている骨格モデルと、各時刻の三次元画像データとに基づいて、各時刻の撮影者の骨格姿勢を表す骨格姿勢パラメータを推定する。【選択図】図1
