Lens Occlusion Judgment Using Depth Images in Low Light
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing lens occlusion judgment systems in low light environments often misjudge the state of a lens, leading to incorrect reminders about occlusion, which can confuse users.
Innovation Solution
An occlusion judgment system utilizing a pre-processing unit for image enhancement, a depth image generating unit, and a judgment unit to determine lens state based on depth images, employing techniques like histogram equalization and depth estimation neural networks to improve accuracy in low light conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional occlusion judgment methods are used in dark environments, then the system can operate, but misjudgment occurs and accuracy deteriorates
Solution Approach 1:
The patent transforms the occlusion judgment from 2D image analysis to 3D depth-based analysis. By computing depth maps from images and analyzing depth values, the system can accurately distinguish occlusion states even in dark environments where traditional 2D visual methods fail. This dimensional transition to depth space resolves the contradiction between reliability and illumination intensity.
Solution Approach 2:
The patent changes the judgment parameter from visual appearance (affected by lighting) to depth information (invariant to lighting). By using depth map computation and analyzing depth value distributions, the system maintains high accuracy regardless of illumination conditions, effectively resolving the contradiction between judgment reliability and environmental light intensity.
2Measurement precision
If depth image computation is performed, then judgment accuracy is improved, but system complexity increases
Solution Approach 1:
The patent segments the processing system into distinct functional modules: pre-processing unit for image enhancement, depth map computation unit for depth extraction, and judgment unit for occlusion determination. This segmentation manages complexity by organizing the sophisticated depth-based analysis into manageable, specialized components, allowing high measurement precision while controlling system complexity through modular design.
Solution Approach 2:
The patent performs preliminary image pre-processing (histogram equalization, noise reduction) before depth map computation to enhance image quality and facilitate more accurate depth extraction. This preliminary action improves the input quality for subsequent depth-based judgment, achieving high measurement precision while the pre-processing steps are organized as standardized operations that manage overall system complexity.
Data Source
AI summary
An occlusion judgment system, an occlusion judgment method, a computer readable recording medium with a stored program, and a non-transitory computer program product are provided. The occlusion judgment system includes: a pre-processing unit configured to receive an image from a lens and perform a pre-processing procedure on the image to obtain a pre-processed image; a depth image generating unit configured to perform a depth image computation procedure on the pre-processed image to obtain a depth image; and a judgment unit configured to determine a lens state of the lens based on the depth image.