Image Sensor Movement Control for Perspective Error Mitigation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Perspective error in images occurs due to camera or digital image sensor movement during exposure, such as user handshake, leading to blurred edges in captured images.
Innovation Solution
An apparatus and method that determine areas of interest in a scene, initiate image capture, detect movement, and control the image sensor or optical arrangement to mitigate perspective error by compensating for detected movement, ensuring the area of interest remains stable and focused.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the image sensor or optical arrangement is moved to compensate for apparatus movement, then perspective error is reduced and image sharpness is improved, but device complexity increases due to additional movement control mechanisms
Solution Approach 1:
The system uses motion sensors to detect apparatus movement during image capture and feeds this information back to a processor, which then calculates and applies compensatory movements to the image sensor or optical arrangement. This closed-loop feedback mechanism enables real-time correction of perspective error without requiring overly complex mechanical stabilization structures.
Solution Approach 2:
The patent replaces complex mechanical image stabilization systems with a combination of motion sensing and computational control. Instead of using heavy mechanical gimbals or lens shifting mechanisms, the system uses motion sensors to detect apparatus movement and controls the image sensor or optical arrangement accordingly, substituting mechanical complexity with sensor-based detection and computational control.
2Reliability
If the image sensor or optical arrangement is dynamically adjusted during capture, then perspective error is mitigated, but the device requires more complex control systems and processing power
Solution Approach 1:
The processor receives motion sensor data during image capture and dynamically adjusts the image sensor or optical arrangement based on real-time feedback about apparatus movement. This feedback loop enables reliable image quality by continuously compensating for perspective error while using efficient algorithms to manage control system complexity.
Solution Approach 2:
The system uses the apparatus's own motion sensors to detect its movement and automatically compensates for this movement by controlling the image sensor or optical arrangement. The system serves itself by using its built-in sensing capabilities to correct its own instability, eliminating the need for external stabilization equipment or complex external control systems.
3Measurement precision
If motion detection is performed during image capture, then perspective error can be corrected, but the detection process may introduce additional processing time and complexity
Solution Approach 1:
The system performs motion detection continuously or at predetermined intervals during the image capture process, rather than attempting to detect and correct movement after capture. This preliminary detection during exposure allows the processor to compensate for perspective error in real-time or with minimal post-processing, reducing overall processing time while maintaining high measurement precision.
Data Source
AI summary
A method, apparatus and computer program is provided. The apparatus includes at least one processor; and at least one memory storing a computer program including computer program instructions that, when executed by the at least one processor, cause at least the following to be performed: determining at least one area of interest in a scene imaged by an image sensor; initiating capture of a image, including the at least one area of interest, by causing the image sensor to be exposed to light conveyed by an optical arrangement; detecting movement of the apparatus during capture of the image; and controlling movement of at least one of: the image sensor and the optical arrangement, in dependence upon the detected movement of the apparatus and the at least one area of interest, in order to mitigate the perspective error, at the at least one area of interest, in the image being captured.