Panoramic Detail Camera Coordination for Wide-Area Surveillance
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Solution Overview
Problem
Video monitoring devices face a trade-off between monitoring range and target object definition, as panoramic cameras capture small objects with unclear details due to their wide range, while detail cameras provide clear images but with limited coverage.
Innovation Solution
A method and apparatus that utilize a panoramic camera to detect target objects, determine their size and position, and adjust a detail camera's position and magnification to capture target blocks, ensuring both wide monitoring range and clear object definition through block processing and priority-based capturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a panoramic camera with a large monitoring range is used, then the monitoring range is improved, but the target object definition deteriorates
Solution Approach 1:
The patent divides the monitoring system into two segments: a panoramic camera for wide-area surveillance and a detail camera for close-up observation. The panoramic camera captures the entire scene, while the detail camera focuses on specific target objects, allowing both wide coverage and high definition to be achieved simultaneously through system segmentation.
Solution Approach 2:
The patent introduces a control device as an intermediary that receives images from the panoramic camera, identifies target objects, and automatically controls the detail camera to capture detailed views. This intermediary coordination enables the seamless transition from wide-area monitoring to detailed observation without manual intervention.
2Measurement precision
If a detail camera is used to capture clear target objects, then the target object definition is improved, but the monitoring range deteriorates
Solution Approach 1:
The patent makes the detail camera dynamic by enabling it to rotate and zoom based on target object positions detected by the panoramic camera. The detail camera's position and magnification are automatically adjusted to track and capture different target objects within the wide monitoring area, providing high-definition views without compromising overall coverage.
Solution Approach 2:
The detail camera serves multiple functions: it can capture detailed views of different target objects at different positions and magnifications within the panoramic camera's field of view. By being controlled to focus on various targets sequentially, a single detail camera provides universal detailed observation capability across the entire monitoring range.
3Area of stationary object
If multiple target objects are captured in a panoramic view, then the monitoring range is maintained, but the capturing efficiency deteriorates
Solution Approach 1:
The patent implements a feedback mechanism where the control device continuously monitors the panoramic camera's images, identifies target objects and their positions, and automatically adjusts the detail camera's parameters accordingly. This closed-loop feedback system enables efficient automatic capture of multiple target objects without manual intervention, maintaining high capturing efficiency across the wide monitoring range.
Solution Approach 2:
The system performs preliminary detection of target objects using the panoramic camera before the detail camera captures detailed views. This preliminary identification and positioning allows the detail camera to be pre-positioned and pre-configured for optimal capture, improving overall capturing efficiency by avoiding trial-and-error adjustments.
Data Source
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AI summary
The embodiments of the present application provide a method and an apparatus for capturing a target object and a video monitoring device. The method includes: detecting target objects in a current panoramic video frame acquired by a panoramic camera; determining detail camera position information corresponding to each of the target objects, and determining a magnification corresponding to each of the target objects; performing block processing on the target objects to obtain at least one target block; for each target block, identifying first target objects, at edge positions, among target objects included in the target block, and determining, based on the first target objects, the detail camera position information and the magnification corresponding to the target block; for each target block, controlling the detail camera to adjust its position and magnification based on the detail camera position information and the magnification corresponding to the target block, and controlling the adjusted detail camera to capture the target block. The embodiments of the present application can improve the definition of the target objects on the premise of ensuring a monitoring range.