Multi-Channel Video Framing Control via Segmented Preview Interface
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Solution Overview
Problem
Existing electronic devices with multiple cameras struggle to allow users to independently adjust the framing of each camera during multi-channel video recording, leading to unintended changes in framing when adjusting one camera.
Innovation Solution
A framing method for multi-channel video recording that enables users to separately adjust the framing of each working camera in a preview frame through user operations, ensuring that the framing of one camera does not affect the framing of another.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple cameras are used for simultaneous image shooting, then the image shooting creation experience is enhanced, but the framing control of each camera becomes complex and interdependent
Solution Approach 1:
The preview interface is segmented into multiple independent preview areas, each corresponding to a specific camera lens. Each preview area can be independently adjusted without affecting other cameras' framing, thus resolving the complexity issue while maintaining multi-channel recording capability.
Solution Approach 2:
Each preview area is assigned local quality characteristics specific to its corresponding camera lens, allowing independent framing adjustments. This enables users to optimize each camera's preview independently while maintaining the overall multi-channel system functionality.
2Ease of operation
If the preview interface displays multiple camera images simultaneously, then the user can monitor all cameras, but the framing adjustment of one camera may affect other cameras
Solution Approach 1:
The preview interface is divided into separate preview areas for each camera, with independent framing controls. This segmentation ensures that adjusting one camera's framing does not affect others, maintaining framing stability while enabling comprehensive monitoring.
Solution Approach 2:
The system dynamically responds to user operations within specific preview areas, adjusting only the framing of the corresponding camera lens while keeping other cameras' framings stable. This dynamic localized adjustment maintains reliability during operation.
3Device complexity
If a single preview interface is used for all cameras, then the interface is simple, but independent framing adjustment for each camera is limited
Solution Approach 1:
While maintaining a single unified preview interface structure, the interface is segmented into multiple independent preview areas. Each area allows independent framing adjustment for its corresponding camera, providing both interface simplicity and independent control capability.
Solution Approach 2:
The preview interface serves multiple functions simultaneously: it displays all camera previews in a unified structure while enabling independent framing adjustment for each camera. This multi-functionality resolves the contradiction between simplicity and independent control.
Data Source
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AI summary
Embodiments of this application provide a framing method for multi-channel video recording. In a multi-channel video mode, an electronic device may separately display a plurality of images from different cameras in a plurality of areas of a viewfinder frame. An image from one camera is displayed in one area, and a user operation such as a leftward sliding operation or a rightward sliding operation of a user in an area may be detected, to change framing presented by a corresponding camera in the area, without changing framing of another camera in a corresponding area. In this way, during multi-channel video recording, the user can separately adjust framing presented by each working camera in a preview frame, so that framing of each working camera in the preview frame does not affect each other, to avoid a problem that a change of framing of a working camera in the preview frame causes a change of framing of another working camera in the preview frame.