Camera Image Sensor Rotation for Rotation Trace Photography
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Solution Overview
Problem
General users find it challenging to capture pictures with rotation traces due to the need for professional skills and equipment settings like long shutter speed, small aperture, and ISO sensitivity, as well as manual rotation of the camera.
Innovation Solution
A camera device equipped with a rotation driving unit that controls the image sensor to rotate during the shutter open period, allowing for automatic generation of pictures with rotation traces, and includes a method for blending sharp and blurry images to achieve the desired effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a long shutter speed is used to capture the blurry background with rotation trace, then the background presents ripples formed by multiple concentric circles, but the center of the picture may become out of focus due to hand shaking and requires small aperture and low ISO sensitivity
Solution Approach 1:
The system performs preliminary actions by automatically setting the appropriate shutter speed, aperture, and ISO sensitivity before the user captures the picture. The controller pre-configures these parameters based on the rotation trace effect requirements, eliminating the need for users to manually adjust each parameter and reducing operation complexity while maintaining the desired visual effect.
Solution Approach 2:
The system automatically adjusts multiple parameters (shutter speed, aperture, ISO sensitivity) in coordination to achieve the rotation trace effect. By dynamically changing these parameters based on preset configurations, the system maintains the center sharpness while creating the ripple effect in the background, resolving the contradiction between effect quality and ease of operation.
2Shape
If the photographer manually rotates the camera device to make the ripples effect, then the rotation trace picture can be captured, but it requires professional skills and is difficult for general users
Solution Approach 1:
The system performs self-service by automatically executing the rotation trace effect without requiring user intervention. The controller automatically controls the image sensor rotation and captures the picture with the desired effect, eliminating the need for users to manually rotate the camera and possess professional photography skills, thereby improving user accessibility.
Solution Approach 2:
The patent replaces the manual mechanical rotation of the entire camera device with an automated image sensor rotation mechanism. The rotation driving unit mechanically rotates only the image sensor while the camera body remains stationary, substituting the complex manual operation with an automated mechanical system that is accessible to general users.
3Ease of operation
If the image sensor is rotated during shutter open period, then automatic generation of pictures with rotation traces is achieved, but additional components like rotation driving unit are required
Solution Approach 1:
The system segments the camera device into independent functional modules: the image sensor is separated from the main camera body and mounted on a rotation driving unit. This segmentation allows the image sensor to be rotated independently during the shutter open period to create the rotation trace effect, while the rest of the camera remains stable. The added complexity is localized to a specific module rather than the entire device.
4Reliability
If multiple parameters (shutter speed, aperture, ISO) are adjusted to avoid overexposure and keep center in focus, then the rotation trace effect is maintained, but the process becomes complex and time-consuming
Solution Approach 1:
The system performs preliminary configuration of multiple parameters (shutter speed, aperture, ISO sensitivity) before picture capture. The controller stores preset parameter combinations that are optimized for rotation trace effects, allowing users to quickly select a preset rather than manually adjusting each parameter. This preliminary preparation reduces setup time while maintaining reliable picture quality.
Data Source
AI summary
A method of generating pictures with rotation trace includes controlling a camera lens to open a shutter within a first period and an image sensor to rotate an angle within the first period, so as to generate a first picture with a rotation trace.