Newness and distinctiveness is claimed in the features of ornamentation as shown inside the broken line circle in the accompanying representation.

Display screen or portion thereof with graphical user interface

A computer system processes a video stream to detect a start of a first motion event candidate in the video stream, and in response to detecting the start of the first motion event candidate in the video stream, initiates event recognition processing on a first video segment associated with the start of the first motion event candidate. Initiating the event recognition processing further includes: determining a motion track of a first object identified in the first video segment; generating a representative motion vector for the first motion event candidate based on the motion track of the first object; and sending the representative motion vector for the first motion event candidate to an event categorizer, where the event categorizer assigns a respective motion event category to the first motion event candidate based on the representative motion vector of the first motion event candidate.

Method and system for motion vector-based video monitoring and event categorization

An electronic device with a display, processor(s), and memory displays a video monitoring user interface including a video feed from a camera located remotely from the client device in a first region and an event timeline in a second region, the event timeline including event indicators for motion events previously detected by the camera. The electronic device detects a user input selecting a portion of the event timeline, where the selected portion of the event timeline includes a subset of the event indicators. In response to the user input, the electronic device causes generation of a time-lapse video clip of the selected portion of the event timeline. The electronic device displays the time-lapse video clip, where motion events corresponding to the subset of the event indicators are played at a slower speed than the remainder of the selected portion of the event timeline.

Method and system for generating a smart time-lapse video clip

The various embodiments described herein include methods, devices, and systems for categorizing motion event candidates. In one aspect, a method includes receiving and processing video frames that include a motion event candidate. The processing includes: (a) obtaining background factors corresponding to a background in at least a subset of the video frames; (b) utilizing the background factors to identify one or more motion entities; (c) for each motion entity, obtaining one or more representative motion vectors based on a motion track of the respective motion entity; (d) identifying one or more features in at least a subset of the video frames; and (e) aggregating the background factors, the representative motion vectors, and the features to generate motion features. The method further includes sending the motion features to an event categorizer, where the event categorizer assigns a motion event category to the motion event candidate based on the received motion features.

Systems and methods for categorizing motion event candidates

A computing system obtains a respective motion vector for each of a series of motion event candidates in real-time as said each motion event candidate is detected in a live video stream. In response to receiving the respective motion vector for each of the series of motion event candidates, the computing system determines a spatial relationship between the respective motion vector of said each motion event candidate to one or more existing clusters established based on a plurality of previously processed motion vectors, and in accordance with a determination that the respective motion vector of a first motion event candidate of the series of motion event candidates falls within a respective range of at least a first existing cluster of the one or more existing clusters, assigns the first motion event candidate to at least a first event category associated with the first existing cluster.

Method and System for Cluster-Based Video Monitoring and Event Categorization

An extracting method of the key frame, a video service apparatus and a video service system are disclosed, in which the method is applied to extract the key frame of the video data stream in the video service system. The method comprises: obtaining the motion vector of each frame in the video data stream, and obtaining the characteristics vector aggregate according to the motion vector; determine whether the direction and the amplitude of the motion vector corresponding to the characteristics vector aggregate of the forward and the backward adjacent two frames occurs change or not; extracting the key frame using the determining result. So the frame whose speed changes abruptly could be extracted effectively.

常义林

Papers

Video service system, video service apparatus and extracting method of key frame thereof