Image Shooting Device Flash Exposure Control
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Solution Overview
Problem
Conventional electronic cameras face issues where live view images and still images shot with a flash differ in quality, especially in terms of brightness and hues, due to being shot under the same exposure conditions, making it difficult for photographers to check the finished quality of still images from the live view display.
Innovation Solution
The image shooting device includes a shooting condition control part that sets and controls different shooting conditions for live view images and still images, using separate white balance modes and exposure settings, especially when a flash is used, to ensure that the live view image accurately represents the quality of the still image.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the same exposure conditions and white balance gain are used for both live view image and still image, then the device complexity is reduced and operation is simplified, but the finished quality of live view image and still image differs significantly when flash is used
Solution Approach 1:
The patent segments the shooting condition control into two independent control paths: one for live view image and another for still image. This allows different exposure conditions and white balance gains to be applied separately to each image type, resolving the quality inconsistency while maintaining operational simplicity through automated management.
Solution Approach 2:
The patent changes the shooting parameters (exposure conditions and white balance gain) based on the image type being captured. When flash is detected, the system automatically adjusts these parameters differently for live view versus still image, ensuring quality consistency without requiring manual intervention from the user.
2Manufacturing precision
If different shooting conditions are set for live view image and still image, then the finished quality consistency is improved, but the device complexity and operation difficulty increase
Solution Approach 1:
The system performs self-service by automatically detecting flash usage and autonomously setting appropriate shooting conditions for both live view and still image. This eliminates the need for manual parameter adjustment by the user, maintaining ease of operation while achieving quality consistency through differentiated shooting conditions.
Solution Approach 2:
The system uses feedback from flash detection to automatically adjust shooting conditions. When the flash detection unit identifies flash usage, this information feeds back to the shooting condition control unit, which then sets appropriate different conditions for live view and still image, ensuring quality consistency without user intervention.
3Ease of operation
If live view image is displayed under same exposure conditions as still image, then the operation is simplified, but the live view image does not accurately represent the finished still image quality
Solution Approach 1:
The patent segments the image display system to show live view image under conditions optimized for viewing, while separately managing still image shooting conditions. This allows the live view to provide accurate composition and focus information while the still image is captured with independently optimized settings, preventing loss of quality information.
Solution Approach 2:
The system changes display parameters for live view image based on detection results, while maintaining separate shooting parameters for still images. This parameter differentiation ensures that live view accurately represents the scene for composition purposes, while still image captures are optimized for final quality, preventing information loss.
Data Source
AI summary
An image shooting device includes an image shooting part, an operation part, a display part that displays a first image which is being shot by the image shooting part under a first light source on a display medium, a recording part that records a second image shot under a second light source by the image shooting part which receives the image shooting instruction from the operation part in a storage medium, a shooting condition setting part that sets a first shooting condition for the first image and a second shooting condition for the second image when the first light source is different from the second light source, and a shooting condition control part that performs control on shooting conditions of the image shooting part such that the first image is shot under the first shooting condition and the second image is shot under the second shooting condition.