Detection-frame position-accuracy improving system and detection-frame position correction method

Abstract

Provided are a detection frame position accuracy improvement system and a detection frame position correction method capable of estimating a detection frame position with high accuracy using information before and after a target frame. The detection frame position accuracy improvement system includes a time-series image input unitthat inputs time-series images, an object detection unitthat detects a target object with the time-series images, a detection frame position distribution estimation unitthat estimates a distribution of detection frame position coordinates at time t from detection results of the target object up to time t−1 (t is a positive integer), a detection frame prediction unitthat predicts positions of a detection frame at times t+1 to t+n (n is a positive integer) according to the detection results and the distribution, a detection frame uncertainty estimation unitthat updates the distribution of the detection frame position coordinates at time t according to degrees of overlap between the detection results of the target object at the times t+1 to t+n and the predicted detection frame and estimates uncertainty of a detection frame at time t, and a detection frame correction unitthat corrects the detection frame at time t on the basis of the detection frame and the uncertainty.