Multi-Camera Angle-of-View Control Using Main Camera Feedback
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Solution Overview
Problem
Existing image capturing systems with multiple cameras struggle to ensure that a sub camera captures the subject at the intended angle of view, despite coordination with the main camera's zoom control.
Innovation Solution
An image-capturing control apparatus that acquires information from the main camera, including angle of view, distance to the target subject, and sub camera's tracking target, to control the sub camera's angle of view accurately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If the sub camera is controlled to capture the same subject as the main camera with coordinated zoom control, then automatic image capturing control is achieved and labor is saved, but the sub camera may capture the subject at an unintended angle of view
Solution Approach 1:
The control unit receives feedback information about the main camera's angle of view and distance to target subject, and uses this feedback to adjust the sub camera's angle of view control. The system continuously monitors the main camera's state and modifies the sub camera's parameters accordingly to achieve accurate angle of view coordination while maintaining automatic control.
Solution Approach 2:
The system changes the control parameters for the sub camera based on the main camera's current state. By dynamically adjusting the sub camera's angle of view parameters according to the main camera's angle of view and distance information, the system achieves precise coordination between the two cameras while maintaining automated operation.
2Device complexity
If the sub camera is controlled based on simple coordination with the main camera, then the control system remains simple, but the sub camera cannot capture at the intended angle of view
Solution Approach 1:
The control unit acts as an intermediary that receives information from the main camera and translates it into appropriate control commands for the sub camera. This intermediary processing layer enables precise angle of view control without requiring direct complex mechanical coordination between the cameras, maintaining relative system simplicity while achieving high precision.
Data Source
AI summary
An image-capturing control apparatus includes at least one processor and/or circuit configured to function as following units: an acquisition unit configured to acquire information from a state of a main camera and/or from a video captured by the main camera, among a plurality of cameras; and a control unit configured to control an operation of a sub camera among the cameras based on a role assigned to the sub camera and the information, wherein the acquisition unit acquires, as the information, information on an angle of view of the main camera, information on a distance between the main camera and a target subject of the main camera, and information on a distance between the sub camera and a tracking target of the sub camera, and wherein the control unit controls an angle of view of the sub camera based on the role assigned to the sub camera and the information.