Video Retrieval via Segment Region Sequences
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing video processing systems struggle to efficiently retrieve video images of a person or object moving from one specific region to another without considering the movement paths within those regions, leading to incomplete retrieval due to the vast number of possible paths.
Innovation Solution
A video processing system that includes an object movement information acquiring means to detect moving objects and acquire movement segment region information and segment region sequence information, an object movement information and video data storing means to store this information, a retrieval condition inputting means to input segment regions and their sequences as retrieval conditions, and a video data retrieving means to output corresponding video data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the technique from Non-Patent Document 1 is used to retrieve video images by specifying movement paths in regions, then retrieval precision for specific movement patterns is improved, but the number of required queries increases dramatically making complete retrieval difficult
Solution Approach 1:
The monitoring target area is divided into multiple segment regions, and movement information is extracted as a sequence of these segment regions rather than detailed movement paths. This segmentation approach simplifies the retrieval condition to just start and end regions, reducing query complexity while maintaining retrieval precision for the essential movement pattern.
2Reliability
If all possible movement paths are considered for retrieval, then complete retrieval of video images is achieved, but the system complexity and query input burden become unmanageable
Solution Approach 1:
The invention extracts only the essential movement information (sequence of segment regions from start to end) while discarding unnecessary detailed path information. This extraction approach maintains retrieval completeness for the key movement pattern while significantly improving ease of operation by reducing the query input to simple start and end region specifications.
3Reliability
If manual reproduction and review of all video images is performed, then no retrieval mistakes are made, but time consumption becomes extremely inefficient
Solution Approach 1:
The system performs preliminary automatic retrieval based on movement segment region sequences before manual review is needed. By pre-processing and filtering video images using extracted movement information, the system quickly identifies candidate videos that match the query, significantly reducing retrieval time while maintaining reliability through subsequent verification if needed.
Data Source
AI summary
A video processing system includes: an object movement information acquiring means for detecting a moving object moving in a plurality of segment regions from video data obtained by shooting a monitoring target area, and acquiring movement segment region information as object movement information, the movement segment region information representing segment regions where the detected moving object has moved; an object movement information and video data storing means for storing the object movement information in association with the video data corresponding to the object movement information; a retrieval condition inputting means for inputting a sequence of the segment regions as a retrieval condition; and a video data retrieving means for retrieving the object movement information in accordance with the retrieval condition and outputting video data stored in association with the retrieved object movement information, the object movement information being stored by the object movement information and video data storing means.