CAMERA PARAMETER ESTIMATION DEVICE, CAMERA PARAMETER ESTIMATION METHOD, AND CAMERA PARAMETER ESTIMATION PROGRAM

摘要

This camera parameter estimation device is provided with: an acquisition unit which acquires, for each camera, time-series frames including images of a plurality of subjects that exist in a common visual field shared by a plurality of cameras; a point estimation unit which estimates, for each of the images of a subject, the coordinates of a node point determined on images of the subject in the time-series frames; a motion trajectory estimation unit which estimates, for each camera, the trajectory of the node points between the time-series frames; an inter-camera correspondence estimation unit which estimates a set of trajectories between the acquired frames, each acquired from pairs of cameras; and a parameter estimation unit which estimates, for each camera, a camera parameter on the basis of the set of the trajectories.