Zoom-Adaptive Camera Output Modes for Stable Handheld Previews
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Solution Overview
Problem
Image stabilization in handheld mobile devices is limited, leading to blurred images due to hand shake, especially when zooming, which affects user experience.
Innovation Solution
An image photographing method that adjusts output modes based on zoom ratios and ambient light conditions, using techniques like Binning, Remosaic, Quadra HDR, and Stagger HDR, combined with digital zoom and electric image stabilization, to optimize image resolution and sharpness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If digital zoom is applied to magnify the preview image, then the user can see more detailed content, but the image shake is also enlarged making the preview unstable
Solution Approach 1:
The patent introduces an intermediary image processing layer that sits between the camera sensor and the display output. This intermediary layer applies digital image stabilization algorithms that calculate compensation transformations based on detected shake patterns, effectively mediating between the raw shaky image data and the final stabilized preview display, allowing zoom while maintaining stability
Solution Approach 2:
The patent dynamically changes multiple parameters including zoom ratio, stabilization intensity, and image processing settings based on detected shake magnitude and user preferences. When shake is detected, the system adjusts stabilization parameters to counteract the shaking, allowing the preview to remain stable even at high zoom ratios where detail visibility is improved
2Measurement precision
If the photo preview interface magnifies the image by a certain ratio, then the user can observe finer details, but the shake presented on the screen is also enlarged affecting user experience
Solution Approach 1:
The patent introduces an intermediary image processing layer that sits between the camera sensor and the display output. This intermediary layer applies digital image stabilization algorithms that calculate compensation transformations based on detected shake patterns, effectively mediating between the raw shaky image data and the final stabilized preview display, allowing zoom while maintaining stability
Solution Approach 2:
The patent implements a feedback mechanism where the system continuously monitors the preview image for shake patterns, analyzes the magnitude and direction of shaking, and automatically adjusts stabilization parameters in real-time to counteract the detected motion, creating a closed-loop control system that maintains preview stability
3Stability of the object's composition
If image stabilization processing is applied, then the preview image stability is improved, but the processing time and computational resources increase
Solution Approach 1:
The patent applies partial stabilization processing by selectively applying stabilization algorithms only to the necessary portions of the image data and only when shake is detected. The system adjusts the intensity of stabilization processing based on the magnitude of detected shake, applying stronger processing only when needed, thereby reducing overall computational burden while maintaining effective stability
Solution Approach 2:
The patent implements dynamic image stabilization that adapts its processing intensity and algorithms based on real-time shake detection. The system transitions between different stabilization modes (e.g., light stabilization vs. heavy stabilization) depending on the magnitude and characteristics of detected motion, optimizing the balance between stability and processing efficiency
Data Source
AI summary
Provided are an image photographing method, a device, a storage medium, and a program product. The method includes: displaying a first preview interface of a camera application, where the first preview interface includes a first preview image, the first preview image is obtained after processing a first image collected by a camera, the first preview image corresponds to a first zoom ratio, and the first image corresponds to a first output mode of the camera; receiving a first operation performed by a user; and displaying a second preview interface of the camera application in response to the first operation, where the second preview interface includes a second preview image, the second preview image is obtained after processing a second image collected by the camera, the second preview image corresponds to a second zoom ratio, and the second image corresponds to a second output mode of the camera.