Image Acquisition Component Synchronization with Display Brightness
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Solution Overview
Problem
Conventional electronic devices often acquire images with inconsistent brightness, resulting in light and dark stripes due to the asynchronous operation of image acquisition components and display screens, which affects image quality and accuracy in applications like fingerprint recognition.
Innovation Solution
The image acquisition component and display screen are arranged in a stacked configuration, with the acquisition area corresponding to an input area on the display screen, and image acquisition is synchronized with a signal indicating a decrease in brightness, allowing image acquisition only when the brightness is consistent.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If image acquisition is performed continuously without synchronization, then image acquisition speed is maintained, but brightness inconsistency and light/dark stripes appear in the acquired images
Solution Approach 1:
The patent applies periodic action by suspending image acquisition during specific time intervals when the display screen performs brightness adjustment operations. The image acquisition component operates periodically - acquiring images when the display brightness is stable and pausing when brightness changes are detected - thereby eliminating light/dark stripes while maintaining overall acquisition productivity
Solution Approach 2:
The patent implements feedback control by monitoring the display screen's brightness state and using this information to control the image acquisition timing. A synchronization signal is generated based on the display's brightness change events, and this feedback signal is used to trigger suspension or resumption of image acquisition, ensuring brightness consistency in acquired images
2Manufacturing precision
If image acquisition is suspended during brightness changes, then image quality and brightness consistency are improved, but image acquisition time increases
Solution Approach 1:
The patent applies partial action by suspending image acquisition only during the specific time intervals when brightness changes occur, rather than suspending it continuously. This partial suspension approach minimizes the time loss while still achieving the goal of eliminating light/dark stripes in acquired images
3Device complexity
If the image acquisition component and display screen are arranged in a stacked configuration, then device integration is improved, but interference from display brightness changes affects image quality
Solution Approach 1:
The patent introduces a synchronization signal as an intermediary between the display screen and image acquisition component. This intermediary signal mediates the interaction between the two components by conveying brightness change information from the display to the image acquisition system, enabling coordinated operation that eliminates quality interference while maintaining the integrated stacked configuration
Data Source
AI summary
Image processing method, electronic device, and storage medium are provided. The method includes acquiring an image through an image acquisition component. The image acquisition component and a display screen are arranged one over another. The image acquisition component includes an acquisition area, and the acquisition area corresponds to an input area on a display area of the display screen. Based on a synchronization signal that is at least synchronized with a signal of brightness decrease of the input area on the display area of the display screen, image acquisition of the image acquisition component is suspended.