PTZ Camera Tracking Moving Objects with Dual-Rate Control
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Solution Overview
Problem
Conventional multi-camera systems face limitations in extensibility, cost, and effectiveness in capturing high-definition images of large areas due to the need for multiple cameras and cumbersome installation, while also struggling to accurately capture moving objects within a short time frame.
Innovation Solution
An information processing system that includes region image pickup means, detection means for moving bodies, calculation means for angle of view calculation, and control means for optimizing image pickup based on detected moving bodies' angles of view, allowing for efficient and accurate image capture of both static regions and moving objects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple cameras are used to monitor large areas, then the coverage area and monitoring capability are improved, but the system cost, installation complexity, and device complexity increase
Solution Approach 1:
A single camera is designed to perform multiple functions: it can capture wide-area monitoring images and automatically switch to capture high-definition images of moving objects. The camera system integrates region monitoring and moving object tracking capabilities into one device, eliminating the need for multiple separate cameras while maintaining comprehensive monitoring coverage
Solution Approach 2:
The camera system dynamically adjusts its photographing direction and focal length based on real-time detection of moving objects. The camera rotates to track moving objects and automatically zooms to capture high-definition images, allowing a single camera to adaptively cover large areas and focus on specific targets without requiring multiple fixed cameras
2Manufacturing precision
If multiple cameras are deployed to capture high-definition images of large areas, then the image quality and coverage are improved, but the installation becomes cumbersome and cost increases
Solution Approach 1:
The camera system dynamically changes its photographing direction and focal length to capture high-definition images of moving objects across large areas. By rotating to track objects and automatically zooming, a single camera achieves the image quality previously requiring multiple fixed cameras, significantly simplifying installation
Solution Approach 2:
The camera system automatically detects moving objects and autonomously adjusts its photographing parameters without manual intervention. The camera self-adjusts its direction and focal length to capture high-definition images, eliminating the need for complex manual installation and positioning of multiple cameras
3Device complexity
If a single camera is used to monitor large areas, then the system cost and installation complexity are reduced, but the ability to capture high-definition images of moving objects within short time frames deteriorates
Solution Approach 1:
The camera dynamically switches between wide-area monitoring mode and high-definition tracking mode. When a moving object is detected, the camera rapidly rotates to follow the object and automatically zooms to capture high-definition images, maintaining both system simplicity and image quality through real-time adaptive adjustment
Solution Approach 2:
The camera system preliminarily detects moving objects in the wide-area view and prepares to switch to high-definition mode. By detecting objects first and then automatically transitioning to tracking mode, the system ensures no moving objects are missed during the transition, maintaining high-definition capture capability while using a single camera
4Area of stationary object
If the photographing direction is fixed to cover large areas, then the coverage area is improved, but the ability to track and capture moving objects accurately deteriorates
Solution Approach 1:
The camera system dynamically switches between fixed wide-area monitoring mode and active tracking mode. When moving objects are detected, the camera rotates to follow their movement and adjusts its focal length, allowing accurate tracking of moving objects while maintaining broad coverage capability through the fixed monitoring phase
Data Source
AI summary
An information processing apparatus and method is disclosed wherein a detailed image of a moving body can be picked up accurately. A tracking object pan tilt zoom module reads out moving body information stored in a moving body tracking rank management database at predetermined intervals of time, and pan tilt movement of a zoom camera is controlled based on angle-of-view information as appearance information corresponding to an angle of view of a moving body having the highest priority rank. At this time, an additional tracking object pan tilt module reads out the latest moving body information of the moving body tracking rank management database at intervals of time sufficiently shorter than the predetermined intervals of time at which the tracking object pan tilt zoom process is repeated, and the pan tilt movement of the zoom camera is further controlled repetitively.