Method for detecting short term unusual events in videos
First Claim
1. A method for detecting short term, unusual events in a video, comprising the steps of:
- extracting features from the video;
labeling segments of the video according to the features;
applying a global sliding window to the labeled segments to determine global characteristics over time, while applying a local sliding window to only the labeled segments of the global sliding window to determine local characteristic over time, wherein the local window is substantially shorter in time than the global window and the local sliding window is within the global sliding window; and
measuring a distance between the global and local characteristic to determine occurrences of the unusual short time events.
1 Assignment
0 Petitions
Accused Products
Abstract
A method detects short term, unusual events in a video. First, features are extracted features from the audio and the video portions of the video. Segments of the video are labeled according to the features. A global sliding window is applied to the labeled segments to determine global characteristics over time, while a local sliding window is applied only to the labeled segments of the global sliding window to determine local characteristic over time. The local window is substantially shorter in time than the global window. A distance between the global and local characteristic is measured to determine occurrences of the unusual short time events.
59 Citations
8 Claims
-
1. A method for detecting short term, unusual events in a video, comprising the steps of:
-
extracting features from the video; labeling segments of the video according to the features; applying a global sliding window to the labeled segments to determine global characteristics over time, while applying a local sliding window to only the labeled segments of the global sliding window to determine local characteristic over time, wherein the local window is substantially shorter in time than the global window and the local sliding window is within the global sliding window; and measuring a distance between the global and local characteristic to determine occurrences of the unusual short time events. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
Specification