Dual Camera Mobile Terminal Automatic Wide-Angle Capture
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Solution Overview
Problem
Existing mobile terminals with both normal and wide-angle cameras lack an efficient method for automatically determining the appropriate capturing condition for wide-angle photography, leading to suboptimal picture capture.
Innovation Solution
A mobile terminal equipped with both a normal camera and a wide-angle camera, featuring a controller that displays preview images from both cameras, automatically switches to wide-angle mode based on distance measurements, subject analysis, and user gestures, ensuring optimal capturing conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a mobile terminal is equipped with both normal and wide-angle cameras, then the versatility of image capture is improved, but the complexity of determining appropriate capturing conditions increases
Solution Approach 1:
The mobile terminal automatically determines whether to use wide-angle or normal camera based on analyzing the captured image content. The processor examines the image to detect subjects and their distances, then autonomously decides which camera to use without requiring manual user input or complex external control systems.
Solution Approach 2:
The system captures a preliminary image, analyzes its content to detect subjects and distances, and uses this feedback information to determine the appropriate camera mode. This closed-loop approach allows the terminal to adapt to different shooting scenarios automatically.
2Ease of operation
If manual mode switching between normal and wide-angle cameras is implemented, then the ease of operation is improved, but the productivity of capturing appropriate images automatically deteriorates
Solution Approach 1:
The mobile terminal autonomously determines the appropriate camera mode by analyzing the captured image content. The processor automatically detects subjects, calculates distances, and selects between wide-angle and normal cameras without requiring manual user intervention, thereby maintaining ease of operation while significantly improving automatic image capture efficiency.
Solution Approach 2:
The patent replaces manual mechanical mode switching with an automated image analysis system. The processor uses computational methods to analyze image content, detect subjects, and determine capturing conditions, substituting the mechanical act of manual switching with intelligent automated processing.
3Area of stationary object
If wide-angle camera is used to capture more scenes, then the area of captured image is improved, but the precision of subject capture deteriorates
Solution Approach 1:
The system dynamically selects between wide-angle and normal camera modes based on the captured scene requirements. By analyzing the image content to detect subjects and their distances, the system adaptively switches between capturing modes to optimize both the area coverage and subject capture precision for different shooting scenarios.
Solution Approach 2:
The patent changes the capturing parameters (camera type, focal length) based on the analyzed scene characteristics. When subjects are detected at appropriate distances, the system switches to normal camera mode for precise subject capture; when broader scene coverage is needed, it uses wide-angle mode, thereby optimizing both area and precision requirements.
Data Source
AI summary
A mobile terminal includes a memory; a touch screen; a first camera having a first capturing angle; a second camera having a second capturing angle that is wider than the first capturing angle; and a controller. The controller is configured to: cause the touch screen to display a first preview image of the first camera, a second preview image of the second camera, or both the first and second preview images overlapping each other; cause the memory to store a first image taken by the first camera in response to a first capture command received while the first preview image is displayed; and cause the memory to store both the first image and a second image taken by the second camera when a wide-angle capturing condition is satisfied while at least one of the first preview image or the second preview image is displayed.