Search Assist System Using Fixed and On-Board Cameras
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Solution Overview
Problem
Current search systems face inefficiencies when searching for a subject across a wide area using images or videos from on-board cameras, as the large search target area results in excessive data processing loads and longer detection times, especially when the subject's characteristic information is incomplete or unreliable.
Innovation Solution
A search assist system that utilizes both fixed and on-board cameras, where the system stores characteristic information from fixed cameras and location data of vehicles with on-board cameras, allowing for the determination of a targeted search area based on matching information, reducing the amount of data to be searched and enhancing the accuracy of the search by focusing on areas where the subject is likely to be present.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the search target area is widened to cover a large region, then the probability of detecting the subject increases, but the amount of data to be checked becomes enormous and processing loads become enormous
Solution Approach 1:
The patent segments the large search target area into multiple smaller sub-areas based on location information from fixed cameras. Instead of processing all images from the entire wide area, the system divides the search space into manageable segments (sub-areas) and assigns them to different on-board cameras, thereby reducing the processing load on each device while maintaining comprehensive coverage of the entire search area.
2Reliability
If the search target area is widened to cover a large region, then the probability of detecting the subject increases, but the time spent before the subject is found becomes longer
Solution Approach 1:
The patent performs preliminary actions by using fixed cameras to acquire location information about the subject before the main search begins. This preliminary location data is used to pre-segment the search area and pre-assign sub-areas to on-board cameras, so that when the actual search starts, each on-board camera can immediately focus on its assigned sub-area without needing to process the entire wide area, thereby significantly reducing the time to detect the subject.
3Measurement precision
If characteristic information from fixed cameras is used to determine search target area, then the accuracy of search is enhanced, but the system complexity increases due to integration of fixed and on-board cameras
Solution Approach 1:
The patent merges the functions of fixed cameras (for location detection) and on-board cameras (for detailed search) into a unified search system. The fixed cameras provide macro-level location information to define search boundaries, while on-board cameras provide micro-level detailed inspection within those boundaries. This merging allows the system to leverage the strengths of both camera types, achieving high search accuracy without requiring each individual camera to perform all functions alone.
Data Source
AI summary
A search assist system performs search for a subject of search from the images picked up by the on-board cameras. The search assist system includes: a first storage configured to store characteristic information on subjects of identification detected from the images picked up by fixed cameras and information on the fixed cameras; a second storage configured to store location information on vehicles; and one or more first controllers configured to receive characteristic information on the subject of search; determine a search target area based on an installation location of a fixed camera picking up the characteristic information matching the characteristic information on the subject of search; and send, to vehicles within the search target area, search instructions to search for the subject of search by the on-board cameras; and a second controller configured to output an image including the detected characteristic information on the subject of search.