Method for reconstructing missing mark in motion capture

The invention discloses a method for reconstructing missing mark in motion capture, and belongs to the field of human body motion information capture. The problem of missing marks due to occlusion or ambiguity in an optical motion capture process is solved. The invention discloses a method for reconstructing a missing mark in motion capture, which comprises the following steps of estimating the position of a missing mark point from incomplete data through a Kalman filtering framework in combination with motion data and human body joint constraints, and reconstructing a human body skeleton model; analyzing control position distribution of existing mark points and excluding non-linear direction movement; eliminating noise and jitter based on a Kalman filtering framework; calculating the position of a missing mark according to constant-speed sampling, and recovering missing data; and reconstructing a human body motion model in combination with the human body skeleton topology model. The invention belongs to a me