Multi-Camera Slow-Motion Frame Rate Selection for Moving Objects
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Solution Overview
Problem
Existing slow motion video shooting methods require manual setting of frame rates by users, resulting in low intelligence and poor shooting effects due to unsuitable frame rates, especially when capturing fast-moving objects.
Innovation Solution
An electronic device with multiple cameras, each with different fields of view or shooting directions, automatically determines a suitable frame rate based on the moving speed of a target object, optimizing the shooting effect by invoking the appropriate camera to capture the video at the determined frame rate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual frame rate setting is used, then user control is maintained, but shooting effect deteriorates due to unsuitable frame rates
Solution Approach 1:
The system automatically detects the moving speed of the target object and determines the appropriate shooting frame rate without requiring manual user input. The electronic device performs self-adjustment by invoking the camera to capture preview images, calculating the target's moving speed, and selecting the optimal frame rate from a preset range, thereby achieving self-service operation that improves shooting effect while maintaining ease of use.
Solution Approach 2:
The system changes the shooting frame rate parameter dynamically based on the detected moving speed of the target object. By establishing a correspondence between different speed ranges and frame rate values, the system automatically adjusts the frame rate parameter to match the actual shooting conditions, resolving the contradiction between manual control and shooting quality.
2Manufacturing precision
If high frame rate is used for fast-moving objects, then shooting effect improves, but storage requirements increase
Solution Approach 1:
The system dynamically adjusts the shooting frame rate parameter based on the detected moving speed of the target. For fast-moving objects, a higher frame rate is selected to capture sufficient motion detail, while for slower objects, a lower frame rate is used. This parameter adaptation ensures optimal shooting effect for each scenario while avoiding unnecessary high frame rates that would increase storage requirements.
Solution Approach 2:
The frame rate selection is made dynamic rather than fixed, allowing the system to adapt to different shooting scenarios. By continuously monitoring the target's moving speed and adjusting the frame rate accordingly, the system optimizes the balance between capturing quality (which requires higher frame rates for fast motion) and storage efficiency (which benefits from lower frame rates when possible).
Data Source
AI summary
This application relates to the field of terminal AI technologies, and discloses a video shooting method and an electronic device. The electronic device disclosed in this application is provided with a first camera and a second camera. After receiving an instruction for shooting a slow motion video, the electronic device can invoke the first camera to perform preview, and after detecting that a target moving object moves in a field of view of the first camera, determine a target shooting frame rate. Further, the electronic device invokes the second camera to shoot a slow motion video of the target moving object at the target shooting frame rate. In this way, the electronic device can determine a best shooting frame rate based on a moving speed of the target moving object. This achieves a high degree of intelligence, and can optimize a shooting effect.