Multi-Target Camera Zoom Control for Stable Tracking Size
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Solution Overview
Problem
Existing image capturing systems struggle to track multiple targets within the angle of view while maintaining appropriate size, leading to potential undetection of smaller targets.
Innovation Solution
An image capturing system that includes a camera and a controller, utilizing machine learning techniques to detect and track multiple targets, and controls operations such as panning, tilting, and zooming to ensure all targets remain within the view, restricting zooming if necessary to maintain detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the image capturing unit zooms in to track a single target, then the tracking precision for that target is improved, but smaller targets may become undetectable or fall outside the angle of view
Solution Approach 1:
The patent applies dynamics by making the zoom magnification adjustable and changeable based on real-time detection of multiple targets. The control unit dynamically modifies the zoom level to ensure all detected targets remain within the angle of view, transitioning between different magnification states as targets move or are detected
Solution Approach 2:
The system uses feedback by continuously monitoring the positions and sizes of detected targets, then adjusting the zoom magnification accordingly. The control unit receives detection results and modifies the image capturing parameters to maintain optimal viewing conditions for all targets, creating a closed-loop control system
2Area of stationary object
If the image capturing unit maintains a wide angle of view to include multiple targets, then all targets remain detectable, but the tracking precision for individual targets decreases
Solution Approach 1:
The system dynamically adjusts the zoom magnification based on the number and distribution of detected targets. When multiple targets are detected, the control unit modifies the magnification to optimize both the angle of view for including all targets and the precision for tracking them, rather than maintaining a fixed wide angle
Solution Approach 2:
The patent changes the zoom magnification parameter adaptively based on detection results. The control unit modifies this optical parameter to balance between including multiple targets in the frame and maintaining sufficient resolution for accurate tracking of each target
3Quantity of substance
If the system tracks all detected targets simultaneously, then comprehensive monitoring is achieved, but it becomes difficult to maintain appropriate size for each target in the image
Solution Approach 1:
The system dynamically adjusts zoom magnification based on the collective positions and sizes of multiple targets. The control unit modifies the magnification level to ensure all tracked targets maintain appropriate sizes within the image frame, adapting to changes in target distribution and number
Data Source
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AI summary
An information processing device (1) includes setting means (213) for setting plural tracking targets (402) to be tracked during image capturing by image capturing means (100), size detection means for detecting sizes of the tracking targets in an image captured by the image capturing means, and control means for controlling zooming of the image capturing means such that the plural tracking targets are included within an angle of view of the image capturing means. The control means controls the zooming such that the size of each tracking target among at least some of the plural tracking targets falls within a predetermined range.