Dual-Camera Photo Timing for Precise Moving-Object Composition
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Solution Overview
Problem
The probability of achieving satisfactory composition in photographs of moving objects is low with conventional photographing methods, whether through snap photography or automatic continuous capture, due to the inability to ensure the composition is ideal at the time of capture.
Innovation Solution
Employing two cameras to collect overlapping preview pictures, allowing a user to preset the composition position in one camera's view, and using the other camera to determine the optimal photographing time based on the object's movement speed, ensuring the first camera captures the object in the desired position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If snap photography is used to capture moving objects, then the photographing speed is fast, but the composition position of the moving object cannot be ensured to be ideal
Solution Approach 1:
The system performs preliminary actions by using a second camera to track the moving object and calculate its trajectory and speed before the actual photographing moment. The processor determines the optimal photographing time in advance based on the object's movement parameters, ensuring the object will be in the ideal composition position when the first camera captures the image.
Solution Approach 2:
The second camera acts as an intermediary device that provides movement information about the target object. This intermediary system enables the processor to calculate trajectory and predict future positions, which then guides the timing of the first camera's photographing action to achieve ideal composition.
2Quantity of substance
If automatic continuous capture function is used, then multiple photographs are captured, but the time interval between photographs results in unsatisfactory composition
Solution Approach 1:
The system implements feedback by continuously monitoring the moving object's position through the second camera and using this information to dynamically adjust the photographing timing. The processor calculates the optimal moment based on real-time movement data, ensuring each captured photograph achieves ideal composition rather than relying on fixed time intervals.
Solution Approach 2:
The system transitions from static, fixed-interval photographing to dynamic, adaptive timing. The photographing interval is no longer fixed but dynamically adjusted based on the object's speed and trajectory calculations, allowing the system to capture images at optimal moments even as the object moves.
3Manufacturing precision
If two cameras are used to collect preview pictures, then the composition precision is improved, but the device complexity increases
Solution Approach 1:
The system divides the photographing function into two specialized components: the first camera is dedicated to capturing the final high-quality image, while the second camera is dedicated to tracking and providing movement information. This segmentation allows each camera to be optimized for its specific function, with the processor coordinating their operations to achieve ideal composition.
Solution Approach 2:
The second camera serves multiple functions: it provides real-time tracking information, enables movement speed calculation, supplies trajectory data for timing predictions, and helps determine optimal composition. This multi-functionality justifies the addition of the second camera by demonstrating its versatile role in achieving precise composition.
Data Source
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AI summary
Disclosed are a photographing method and an electronic device. The method comprises: receiving a first input regarding a target position in a first preview picture collected by a first camera, and determining a movement speed of a target object according to a plurality of second preview pictures collected by a second camera; according to the movement speed, determining the target time when the target object moves into a target region, wherein the target region is a region corresponding to the target position; and controlling the first camera to perform photographing at the target time, wherein the position of the target object in each of the second preview pictures is different, and there is an overlapping picture between the first preview picture and each of the second preview pictures.