Camera Synchronization via Imaging Element Light Detection
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Solution Overview
Problem
Existing camera systems for synchronized shooting and reproduction of moving images from multiple angles lack precise synchronization of exposure and light timing, leading to inconsistencies in frame synchronization, which affects the accuracy of motion evaluation in three-dimensional analysis.
Innovation Solution
A camera system comprising a master camera with a light emitting unit and slave cameras with detecting units, where the light emits periodically, allowing the slave cameras to adjust their exposure timing based on the detected light blinking, ensuring synchronized shooting and reproduction of images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single light detecting means is provided separately from the imaging unit to synchronize camera exposure timings, then the synchronization between multiple cameras is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent merges the light detecting function with the imaging element itself. The imaging element serves dual purposes: capturing images and detecting light timing signals. This eliminates the need for separate light detecting means, reducing device complexity while maintaining synchronization precision through the imaging element's inherent photoelectric conversion capability
Solution Approach 2:
The imaging element is designed to perform multiple functions: it acts as both the image capture device and the light timing detection sensor. By making the imaging element universal, the system avoids additional components and achieves synchronization without increasing device complexity
2Manufacturing precision
If separate light detecting means is used for synchronization, then the exposure timing accuracy is improved, but the manufacturing cost increases
Solution Approach 1:
The patent combines the light detection function into the existing imaging element, eliminating the need for separate light detecting components. This merger reduces the number of parts that need to be manufactured and assembled, thereby lowering manufacturing costs while maintaining exposure timing accuracy through the imaging element's photoelectric response
Solution Approach 2:
The system uses the imaging element's response to light as a copy of the light timing signal, rather than requiring a separate dedicated sensor. The imaging element captures the light timing information through its normal photoelectric conversion process, providing an accurate timing reference without additional manufacturing complexity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system achieves precise synchronization of exposure and light timing across multiple cameras, ensuring that moving images are captured and reproduced in synchronization, allowing for accurate evaluation of motion in three dimensions without the need for additional optical sensors, reducing manufacturing costs and device complexity.
Implementation Method 1
an imaging element for taking a picture to obtain an image... a detecting unit which detects a timing of blinking of light based on a timing of variation in luminance of an image obtained by the imaging element
Data Source
AI summary
A camera is provided with an imaging element, and detects a timing of blinking of light which blinks periodically at a reference timing, based on a timing of variation in luminance of an image obtained by the imaging element, wherein the image is taken by the imaging element under a condition that the light blinks periodically at the reference timing. Further, the timing of exposure of the imaging element is adjusted based on the detected timing of the blinking light, thereby synchronizing shooting operations of plural cameras with each other.