Virtual Multi-Preview Menu for Portable Terminal Video
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Solution Overview
Problem
Existing video providing methods in portable terminals limit users' ability to simultaneously view previews from multiple cameras and stored content, failing to meet specialized service needs.
Innovation Solution
A method and apparatus that display multiple contents in independent separate regions through a virtual preview service, allowing users to photograph these contents with a multi-preview image using a virtual camera, which can be executed via an image or camera application, and transmit or record the data in real time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the entire display panel is provided as one preview connected with only one camera, then the device complexity is reduced, but the versatility and adaptability to satisfy various service needs deteriorates
Solution Approach 1:
The display panel is divided into multiple independent separate regions, each capable of displaying different preview contents from different cameras or stored video contents. This segmentation allows the system to simultaneously present multiple previews without requiring a single complex preview system, thereby improving versatility while managing complexity through modular regional displays.
Solution Approach 2:
Each preview region is designed to be multi-functional, capable of displaying various types of content including front camera previews, rear camera previews, and stored video contents. This universal display capability across multiple regions enables the system to satisfy diverse service needs without requiring separate dedicated display systems for each function.
2Adaptability or versatility
If multiple different contents are displayed in independent separate regions through virtual preview service, then the versatility and user service satisfaction is improved, but the device complexity and processing requirements increase
Solution Approach 1:
A virtual preview service acts as an intermediary layer between the multiple camera sources/stored contents and the display regions. This virtual service manages the complexity of coordinating multiple previews by providing a unified interface for content selection, region assignment, and synchronization, thereby enabling versatile multi-content display without proportionally increasing overall system complexity.
Solution Approach 2:
The system transitions from a single-dimensional preview display to a multi-dimensional arrangement by utilizing multiple independent display regions simultaneously. This dimensional expansion allows parallel presentation of different contents without requiring sequential switching, improving service capability while distributing processing load across multiple independent display channels rather than one complex channel.
3Ease of operation
If a single preview is used for photographing, then the operation is simple, but the ability to photograph multiple contents simultaneously deteriorates
Solution Approach 1:
Multiple independent preview regions displaying different contents are merged into a single composite photograph through the virtual camera function. Users can simultaneously capture all displayed preview contents in one photograph operation, combining multiple views into a single image without requiring separate photographing operations for each content, thus maintaining operational simplicity while enabling multi-content capture.
Data Source
AI summary
A method of providing a video in a portable terminal according to the present invention may include: monitoring whether an execution request event for a multi-camera mode of a portable terminal is generated; when the execution request event is generated, executing a virtual multi-preview menu including a plurality of pre-view regions, which is divided into independent separate regions and displays a plurality of different contents, respectively, and when the virtual multi-preview menu is executed, photographing a multi-preview image, so that different contents are displayed on the plurality of preview regions, respectively, with a virtual camera implemented in the portable terminal.