Dual Camera Sensor Positioning for Image Quality
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Solution Overview
Problem
Mobile devices with dual digital camera sensors face challenges such as increased computational complexity, power consumption, and limited flexibility in sensor resolution and positioning, which restrict their ability to support advanced imaging and video applications.
Innovation Solution
A mobile device with a first image sensor and a second image sensor that can be adjusted in position, controlled by a sensor position controller, and processed by an image processing module to combine images for improved image quality and dynamic range, enabling features like 3D visualization and panoramic video generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If dual digital camera sensors are used, then image quality and dynamic range are improved, but computational complexity and power consumption increase
Solution Approach 1:
The patent divides the imaging function into two separate image sensors (first and second sensors) with different resolutions and positions. Each sensor handles specific imaging tasks independently, allowing the system to process only necessary data from each sensor rather than processing all data from a single high-resolution sensor, thus reducing overall computational complexity while maintaining image quality
Solution Approach 2:
The patent makes the second image sensor movable and reconfigurable, allowing it to serve multiple functions: capturing still images, capturing video, changing effective resolution, and adjusting positioning. This multi-functionality reduces the need for additional dedicated sensors or processing, thereby reducing computational complexity while improving image quality and dynamic range
2Measurement precision
If dual digital camera sensors are used, then image quality and dynamic range are improved, but power consumption increases
Solution Approach 1:
The patent employs different resolution settings for the two image sensors, with the second sensor having lower resolution than the first. This allows the system to capture sufficient image data with reduced processing requirements, consuming less power while still achieving the desired image quality and dynamic range through the combination of both sensors
Solution Approach 2:
The movable second image sensor can be dynamically repositioned and reconfigured based on imaging requirements. This dynamic capability allows the system to optimize power consumption by activating and processing only the necessary sensor data for each specific imaging task, rather than continuously processing full data from both sensors at maximum resolution
3Device complexity
If sensor position is fixed, then device complexity is reduced, but flexibility in imaging applications is limited
Solution Approach 1:
The patent implements a movable second image sensor that can change its position relative to the first sensor under controller guidance. This dynamic positioning capability enables the system to adapt to various imaging applications (such as changing effective resolution, capturing different fields of view, or adjusting sensor alignment) without requiring complex mechanical positioning systems for both sensors, thus achieving flexibility with controlled complexity
Data Source
AI summary
A mobile device comprising a first image sensor, a second image sensor configured to change position with respect to the first image sensor, a controller configured to control the position of the second image sensor, and an image processing module configured to process and combine images captured by the first and second image sensors.