Dual-Camera Mobile Terminal With Condition-Based Wide-Angle Capture
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Solution Overview
Problem
Existing mobile terminals with both a normal and wide-angle camera lack effective control methods for determining optimal capturing conditions, leading to inefficient use of both cameras.
Innovation Solution
A mobile terminal with a first camera having a first capturing angle and a second camera with a wider angle, equipped with a controller to display preview images from both cameras, store images based on capture commands, and switch between normal and wide-angle modes based on distance measurements or user interactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If both a normal camera and a wide-angle camera are mounted on the mobile terminal, then the photography versatility is improved, but the device complexity increases
Solution Approach 1:
The mobile terminal integrates both a normal camera and a wide-angle camera into a single device, enabling it to perform multiple photography functions (standard photography and wide-angle photography) simultaneously. This multi-functionality approach allows the device to adapt to different shooting scenarios without requiring separate devices.
Solution Approach 2:
The camera system is divided into two distinct camera modules: a normal camera with a first capturing angle and a wide-angle camera with a second capturing angle that is wider than the first. Each camera module operates independently with its own capturing characteristics, allowing the system to segment different photography functions into separate functional units.
2Loss of information
If the controller displays both first preview image and second preview image overlapping each other, then the user can compare both camera views, but the ease of operation decreases
Solution Approach 1:
The controller displays the first preview image and second preview image in an overlapping manner on the touch screen, utilizing spatial arrangement in another dimension (overlay layering) rather than displaying them sequentially or in separate locations. This allows the user to compare both camera views simultaneously without increasing the physical display area.
3Ease of operation
If the controller automatically determines wide-angle capturing conditions, then the ease of operation is improved, but the measurement precision requirements increase
Solution Approach 1:
The controller is configured to automatically determine whether a wide-angle capturing condition is satisfied based on analysis of the preview images, without requiring manual user input. The system serves itself by autonomously analyzing the captured scene and making decisions about which camera mode to use, thereby improving ease of operation.
Solution Approach 2:
The controller continuously monitors the preview images from both cameras and uses this visual feedback to automatically determine when wide-angle capturing conditions are met. The system adjusts its operation based on real-time analysis of the captured scene, creating a feedback loop that enables automatic mode switching.
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.