Electronic Apparatus Exposure Reference Value Adjustment
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Solution Overview
Problem
Conventional electronic apparatuses with shooting functions face challenges in determining appropriate exposure conditions for scenes with a main subject against a very bright background, such as backlit or snow scenes, often requiring exposure compensation, which can be complex and prone to errors if not reset correctly.
Innovation Solution
An electronic apparatus that allows users to easily set and adjust a reference value for proper exposure, displaying comparative brightness options based on different reference values and current exposure conditions, enabling intuitive control over image brightness through a user interface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If exposure compensation is set for scenes with bright backgrounds (snow, backlight), then proper exposure for main subjects is achieved, but the operation becomes complex and errors occur if not reset correctly
Solution Approach 1:
The system automatically detects the scene type (snow, backlight, beach) and applies appropriate exposure compensation without requiring manual user intervention. The apparatus serves itself by using the captured image data to determine when exposure adjustment is needed, eliminating the complexity of manual exposure compensation operations while maintaining accurate exposure for challenging scenes
Solution Approach 2:
The system uses feedback from the captured image data to automatically adjust exposure parameters. By analyzing the brightness distribution and scene characteristics from the captured image, the system determines whether exposure compensation is needed and applies it automatically, creating a closed-loop control system that simplifies operation while maintaining exposure accuracy
2Manufacturing precision
If shooting mode is used to change multiple parameters collectively, then proper exposure for specific scenes is achieved, but flexibility for user-intended exposure conditions is reduced
Solution Approach 1:
The system dynamically adjusts exposure parameters based on real-time scene analysis rather than using fixed shooting modes. The exposure compensation is applied selectively and automatically based on the detected scene characteristics, allowing the system to adapt to different user intentions while maintaining accuracy for challenging scenes. This dynamic approach replaces static mode-based adjustments with flexible, context-aware parameter modification
3Manufacturing precision
If automatic exposure control uses standard reference value (18% reflectance), then proper exposure is achieved for most subjects, but appropriate exposure cannot be determined for scenes with very bright backgrounds
Solution Approach 1:
The system changes the reference value parameter for exposure calculation based on detected scene characteristics. When snow or backlight scenes are detected, the system modifies the exposure reference parameters to account for the unusually bright background conditions, allowing accurate exposure determination across diverse scene types while maintaining compatibility with standard AE for normal conditions
Data Source
AI summary
An electronic apparatus that comprises a control unit is disclosed. The control unit displays a user interface for comparably presenting: first brightness that is brightness of an image in which a subject is shot with proper exposure that is based on a first reference value, second brightness that is brightness of an image in which the subject is shot with proper exposure that is based on a second reference value, and third brightness that is brightness of an image in which the subject is shot under current exposure conditions.