HYPERMOTOR ACTIVITY DETECTION SYSTEM AND METHOD THEREFROM

摘要

According to various embodiments of the present disclosure, there is provided a hypermotor activity detection system, including: a video capture device configured to monitor a patient and obtain a video input; and a processing system configured to process the video input, including: a optical flow module configured to carry out an optical flow analysis on a video input region determined from the video input, and further determine a flow field magnitude of the video input region; a local motion reference module including: a division module configured to divide the video input region into a plurality of sub-windows; a sub-window flow module configured to determine a sub-window flow field magnitude for each of the plurality of sub-windows; a local motion magnitude module configured to obtain a magnitude of local motion based on the sub-window flow field magnitude for each of the plurality of sub-windows; and a local motion comparison module configured to compare the magnitude of local motion with a local motion threshold for a predetermined number of observation frames to obtain a local motion reference value. Further, a corresponding method for detecting hypermotor activity is provided.

主权项

1. A hypermotor activity detection system, comprising:
a video capture device configured to monitor a patient and obtain a video input; and a processing system configured to process the video input, comprising:
an optical flow module configured to carry out an optical flow analysis on a video input region determined from the video input, and further determine a flow field magnitude of the video input region;a local motion reference module comprising:
a division module configured to divide the video input region into a plurality of sub-windows;a sub-window flow module configured to determine a sub-window flow field magnitude for each of the plurality of sub-windows;a local motion magnitude module configured to obtain a magnitude of local motion based on the sub-window flow field magnitude for each of the plurality of sub-windows; anda local motion comparison module configured to compare the magnitude of local motion with a local motion threshold for a predetermined number of observation frames to obtain a local motion reference value.