Display Apparatus with Object Detection for Adaptive Video Monitoring
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Solution Overview
Problem
Existing display apparatuses struggle to simultaneously monitor video images from multiple monitoring cameras effectively, as they fail to differentiate display times based on factors influencing content grasp, such as the number of persons and object size, leading to incomplete monitoring due to fixed switching intervals.
Innovation Solution
A display apparatus with an input unit, detection unit, and control unit that analyzes video images from multiple cameras, detects objects, and adjusts display times based on the number of objects and visual recognition difficulty, prolonging display for images requiring more time to grasp, while switching between groups of cameras.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If video images are switched at fixed intervals, then all monitoring cameras can be displayed systematically, but video images requiring more time to grasp contents are displayed for insufficient duration
Solution Approach 1:
The patent applies dynamics by making the display time variable rather than fixed. The control unit dynamically adjusts the display time of each video image based on the detection result from the detection unit. When a video image contains many persons and objects (high complexity), the system automatically extends its display time beyond the standard switching interval, ensuring adequate monitoring time while maintaining systematic coverage of all cameras.
2Reliability
If video images requiring more time to grasp are displayed longer, then monitoring completeness improves, but the number of video images that can be displayed simultaneously decreases
Solution Approach 1:
The patent applies local quality by differentiating the display time allocation for different video images based on their individual characteristics. Instead of uniformly extending display time for all images (which would reduce total quantity), the system selectively extends display time only for video images that require more time to grasp (those with many persons and objects). This localized adjustment maintains monitoring completeness for critical images while preserving the ability to display multiple other images simultaneously.
3Device complexity
If fixed switching intervals are used, then display control is simple, but video images with high visual recognition difficulty are not displayed sufficiently
Solution Approach 1:
The patent applies feedback by implementing a closed-loop control system. The detection unit analyzes each video image to detect the number of persons and objects, providing feedback information about video complexity. The control unit receives this feedback and automatically adjusts the display time accordingly. This feedback mechanism enables the system to respond to visual recognition difficulty without requiring complex manual control, as the system self-regulates based on detected image characteristics.
Data Source
AI summary
A display apparatus includes a display unit configured to display in a plurality of display areas the video images of a first group out of the plurality of the video images input by the input unit and then to switch them to video images of a second group out of the plurality of the video images to produce display in a plurality of the display areas, a detection unit configured to detect objects in each video image, and a control unit configured to, in a case where the number of the objects detected in respective video images of the first group by the detection unit is equal to or greater than a first predetermined number, control the display unit to make the display time of the video image of the first group longer than a predetermined display time for displaying other video images of the first group.