Camera Luminance Fusion for Zoom Stability
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Solution Overview
Problem
When using the zoom function on a camera, especially in multi-camera modules, the luminance of different angles of view corresponding to various focal lengths can be unstable, leading to continuous changes in image luminance.
Innovation Solution
A display method that detects user operations to adjust the angle of view, determines the corresponding angles of view, obtains luminance values for these angles, fuses these values to stabilize luminance, and displays a preview image with the fused luminance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the camera lens switches between different focal lengths during zoom operation, then the zoom function is achieved, but the luminance stability deteriorates
Solution Approach 1:
The system pre-acquires luminance data at multiple angles of view before the actual zoom operation. When zooming occurs, the fusion algorithm can immediately combine these pre-acquired luminance values to maintain stability, avoiding the delay and instability that would occur with real-time measurement during the transition.
Solution Approach 2:
A luminance fusion algorithm acts as an intermediary between the different camera lenses or focal lengths. This algorithm processes and combines luminance values from multiple sources, smoothing out the transitions and maintaining consistent luminance perception during zoom operations between 1x to 10x focal lengths.
2Adaptability or versatility
If the angle of view is adjusted during zoom, then the field of view changes, but the metering stability deteriorates
Solution Approach 1:
The system implements feedback by continuously monitoring luminance values at different angles of view and using this information to adjust metering parameters. The fusion algorithm processes luminance data from multiple angles and feeds back optimized exposure settings to maintain stable metering throughout the zoom and angle adjustment process.
Data Source
AI summary
A display method includes detecting a first operation performed by a user to adjust an angle of view; determining a first angle of view in response to the detected first operation; obtaining a first luminance value of a camera lens at the first angle of view based on the first angle of view; obtaining a second luminance value of the camera lens at a preset second angle of view; fusing the first luminance value and the second luminance value; to obtain a fused luminance value; and displaying a preview image obtained by the camera lens at the first angle of view, where the preview image has the fused luminance value.