Multi-Camera Object Tracking Switch to Minimize Capture Lag
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Solution Overview
Problem
When shooting a large space with multiple cameras, there is a time lag in transitioning a target object from a complete-view camera to a telephoto camera, leading to potential missed captures.
Innovation Solution
An image processing device that includes a tracking target object determination unit, tracked object information obtainment unit, determination processing unit, and tracking change processing unit to manage the transition of tracking targets between multiple cameras, ensuring accurate and timely object capture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple cameras are used to capture both overall and close-up views, then the coverage area and detail quality are improved, but the processing time and complexity increase causing time lag
Solution Approach 1:
The system performs preliminary actions by pre-identifying potential tracking target objects in the overall view before the telephoto camera needs to capture them. The determination unit continuously analyzes the overall image to identify objects that may become tracking targets, preparing tracking information in advance so that when an object is selected for close-up capture, the telephoto camera can immediately begin tracking without waiting for processing to complete.
Solution Approach 2:
The image processing system is segmented into two independent processing streams: one for the overall view camera that identifies potential tracking targets, and another for the telephoto camera that executes tracking. This segmentation allows parallel processing where the overall view processing does not block the telephoto camera operations, reducing the time lag between target identification and capture.
2Area of stationary object
If multiple cameras are used to capture both overall and close-up views, then the coverage area and detail quality are improved, but the system complexity and coordination difficulty increase
Solution Approach 1:
The system merges the tracking control functions of both cameras under a unified control mechanism. The determination unit that identifies tracking targets in the overall view simultaneously provides tracking information to the telephoto camera, and both cameras share common determination processing logic. This merging reduces coordination complexity by eliminating the need for separate, independent tracking systems while maintaining comprehensive coverage.
Solution Approach 2:
The determination unit serves as an intermediary between the overall view camera and the telephoto camera. It receives image data from the overall view camera, identifies potential tracking targets, and transmits tracking information to the telephoto camera. This intermediary structure simplifies the coordination between multiple cameras by providing a centralized decision-making point that manages the tracking workflow.
3Measurement precision
If the telephoto camera continuously monitors to ensure accurate tracking, then the tracking accuracy is improved, but the response time to switch targets decreases
Solution Approach 1:
The determination unit continuously performs preliminary analysis of the overall image to identify potential tracking target objects before they are selected for close-up capture. This preliminary identification prepares tracking information in advance, so when a target is selected, the telephoto camera can immediately switch to tracking mode without waiting for target identification, thus maintaining both accuracy and fast response time.
Data Source
AI summary
An image processing device includes: a tracking target object determination unit that determines an object targeted for tracking as a tracking target object based on a first image captured by a first image capturing unit; a tracked object information obtainment unit that obtains information for identifying a tracked object that is an object being tracked by a second image capturing unit; a determination processing unit that determines whether the tracked object and the tracking target object are a same object; and a tracking change processing unit that performs processing for changing the tracked object tracked by the second image capturing unit to the tracking target object when the tracked object and the tracking target object are determined not to be the same.