Focus State Display for Portable Camera Edge Signal Integration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Portable camera-equipped devices face challenges in accurately determining and adjusting the focus state due to limited display size and resolution, making it difficult for users to confirm and adjust the focus effectively.
Innovation Solution
A focus state display apparatus that extracts image signals, enhances edges, calculates integration or variance values, and displays the focus state quantitatively or qualitatively using various methods such as bar graphs, sound, or color changes to help users adjust the focus accurately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the display screen size is reduced for portable devices, then the device becomes more compact and portable, but the display resolution and detail are insufficient for accurate focus determination
Solution Approach 1:
The patent divides the image into multiple focus areas and extracts image signals from each area separately. By segmenting the image processing into distinct focus area extraction, edge enhancement, and integration value calculation steps, the system achieves precise focus determination despite the limited display size of portable devices.
Solution Approach 2:
The patent transitions from displaying the complete image on a small screen to displaying processed focus state information in a different dimensional representation. By converting spatial frequency information into integration values and focus state indicators, the system presents focus determination data in a compressed format that fits small displays while maintaining measurement precision.
2Quantity of substance
If the display resolution is limited in portable devices, then the device remains compact and cost-effective, but users cannot accurately determine blur and focus states
Solution Approach 1:
The patent extracts high-frequency component information from the image signals and separates it from the full image data. By taking out only the essential edge and focus information through focus area extraction and edge enhancement processing, the system reduces the data量 for display while maintaining the ability to accurately detect focus states.
Solution Approach 2:
The patent uses color or intensity variations to represent different focus states. By mapping focus state information to visual indicators with distinct color or brightness characteristics, the system makes focus determination intuitive and easy to perceive on low-resolution displays, overcoming the limitation of limited display pixel count.
3Device complexity
If focus state information is displayed using conventional methods on small screens, then the device structure remains simple, but the focus state is difficult for users to understand and adjust
Solution Approach 1:
The patent implements a feedback mechanism that continuously calculates integration values from edge-enhanced image signals and displays focus state information in real-time. This feedback loop provides users with immediate visual information about the focus state, making it easy to understand and adjust focus without requiring complex manual intervention.
Solution Approach 2:
The patent transforms the complex image data into simplified focus state parameters through mathematical processing. By changing the representation from raw pixel data to integration values and focus state indicators, the system presents information in a format that is easy to interpret and act upon, improving ease of operation while keeping the processing algorithm relatively simple.
Data Source
AI summary
A focus state display apparatus comprising focus area extraction means for extracting the image signals of a predetermined area from photographed image signals, edge enhancement processing means for enhancing the edge of the extracted image signals, time integration value calculation means for calculating an integration value of the edge-enhanced image signals in a certain period of time, focus state determination means for determining the focus state of the photographed image signals on the basis of the calculated integration value, and focus state display means for displaying the determined focus state. A user is capable of readily determining the focus state of a camera and confirming and adjusting the focus thereof with accuracy even in a display apparatus of a camera-equipped portable terminal device, where the size and resolution thereof are limited.