Camera Module Switching Using Zoom and Distance Detection
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Solution Overview
Problem
Electronic devices without a laser sensor cannot implement automatic switching between different cameras, affecting the photographing experience.
Innovation Solution
The method determines distance information and zoom ratio parameters using the camera module to automatically switch between cameras without relying on a laser sensor, ensuring smooth transitions and image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a laser sensor is used to determine distance information for automatic camera switching, then the automatic switching between different cameras can be implemented, but the device complexity increases and the cost increases
Solution Approach 1:
The camera module performs distance measurement itself using its own imaging capability and parameter information, eliminating the need for external laser sensors. The system uses the camera's depth of field parameters and imaging data to calculate distance, allowing the camera to serve its own measurement needs
Solution Approach 2:
The camera module is designed to perform multiple functions: both image capture and distance measurement. By utilizing the same hardware components for dual purposes, the system avoids adding separate sensing hardware, thereby reducing device complexity while maintaining automation
2Extent of automation
If a laser sensor is used to determine distance information for automatic camera switching, then the automatic switching between different cameras can be implemented, but the cost increases
Solution Approach 1:
The camera module performs distance measurement itself using its own imaging capability and parameter information, eliminating the need for external laser sensors. The system uses the camera's depth of field parameters and imaging data to calculate distance, allowing the camera to serve its own measurement needs
Solution Approach 2:
The camera module is designed to perform multiple functions: both image capture and distance measurement. By utilizing the same hardware components for dual purposes, the system avoids adding separate sensing hardware, thereby reducing device complexity while maintaining automation
3Speed
If camera switching is performed without considering zoom ratio parameters, then the switching response is fast, but picture jump occurs affecting image quality
Solution Approach 1:
The system pre-establishes the relationship between distance parameters and zoom ratio parameters. Before switching cameras, it calculates the required zoom ratio adjustment based on the target distance, ensuring that the zoom lens is positioned correctly in advance to prevent picture jump during switching
Solution Approach 2:
The system continuously monitors both distance parameters and zoom ratio parameters during camera switching. By providing feedback on the zoom ratio state, the system can adjust the zoom lens position dynamically to ensure smooth transitions and maintain image quality throughout the switching process
Data Source
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AI summary
This application relates to the field of terminals, and provides a camera switching method and an electronic device. The method is applicable to an electronic device. The electronic device includes a camera module. The camera module includes a first camera and a second camera. The method includes: enabling a camera application; displaying a first image, where the first image is captured when the first camera serves as a main camera for image capturing; determining that a first parameter and a second parameter satisfy a first preset condition, where the first parameter indicates distance information between the electronic device and a target object, the first parameter is a parameter from the camera module, and the second parameter indicates a zoom ratio of the electronic device; and displaying a second image, where the second image is captured when the second camera serves as the main camera for image capturing. Based on the technical solution of this application, automatic switching between different cameras in the electronic device can be implemented without relying on a laser sensor, thereby improving photographing experience of users.