Dynamic Pixel Group Exposure Control for High-Contrast Imaging
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional imaging systems struggle to dynamically adjust exposure conditions for pixel groups based on specific image regions, leading to suboptimal image quality due to uniform exposure settings across varying luminance levels.
Innovation Solution
An apparatus with a sensor that adjusts exposure time or gain for each pixel group, including an acquisition unit to identify specific image regions, a determination unit to determine corresponding pixel regions, and a change unit to alter the number, size, or shape of pixel groups, allowing for customized exposure control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If uniform exposure settings are applied across all pixel groups, then device complexity is reduced and ease of operation is improved, but image quality deteriorates due to inability to capture varying luminance levels in different image regions
Solution Approach 1:
The sensor is divided into multiple pixel groups, each capable of independent exposure control. The determination unit identifies specific pixel groups corresponding to regions of interest in the captured image, and the change unit adjusts exposure parameters (exposure time or gain) specifically for these identified pixel groups, enabling differentiated exposure control without requiring complete system redesign
Solution Approach 2:
Different exposure parameters are applied to different pixel groups based on their corresponding image regions. The change unit modifies exposure time or gain specifically for pixel groups in regions requiring optimized exposure (such as high-contrast or low-light areas), while other regions maintain standard exposure settings, achieving localized optimization of image quality
2Manufacturing precision
If exposure parameters are adjusted for each pixel group based on specific image regions, then image visibility and dynamic range are improved, but device complexity increases due to additional control mechanisms
Solution Approach 1:
The system dynamically adjusts exposure parameters based on real-time analysis of the captured image. The determination unit identifies regions requiring exposure adjustment in each frame, and the change unit modifies pixel group parameters accordingly, enabling adaptive optimization without requiring complex pre-programmed control sequences
Solution Approach 2:
The sensor system performs self-analysis and self-adjustment of exposure parameters. The determination unit automatically identifies which pixel groups need exposure modification by analyzing the captured image content, and the change unit autonomously adjusts parameters for these regions without requiring external intervention or complex external control systems
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enables improved image visibility by dynamically adjusting exposure settings for each pixel group, enhancing the dynamic range and quality of captured images by optimizing exposure times and gains based on specific image regions.
Implementation Method 1
an imaging unit including the sensor and configured to capture a subject through an optical system to generate an image
Data Source
AI summary
An apparatus including a sensor for setting an exposure time or gain for each of pixel groups including at least one pixel includes an imaging unit including the sensor configured to capture a subject through an optical system to generate an image, an acquisition unit configured to acquire information about a specific image region in the generated image, a determination unit configured to determine a specific pixel region including at least one pixel group in the sensor and corresponding to the specific image region, based on the information about the specific image region, a change unit configured to change at least one of a number, a size, and a shape of pixel groups in the specific pixel region determined by the determination unit, and a control unit configured to control the exposure time or gain for each of the pixel groups.