Infrared Image Acquisition Device Glare Correction via Multi-Angle Imaging
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Solution Overview
Problem
Infrared image acquisition devices face glare issues due to infrared radiation from heat sources other than the subject, which cannot be completely eliminated by changing the capture direction, affecting the accuracy of temperature measurement.
Innovation Solution
An infrared image acquisition device captures two images from different angles and uses corresponding area detection and glare area detection units to identify and correct glare areas, ensuring accurate temperature calculation by subtracting glare from the first image using the second image.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the infrared image acquisition device captures the image of the subject in a diagonal direction to avoid glare, then the glare from the device itself is reduced, but glare from other heat sources may still appear on the infrared image
Solution Approach 1:
The patent captures infrared images from multiple imaging directions (different spatial dimensions) to address the glare problem. By acquiring a first infrared image from one direction and a second infrared image from another direction, the system enables comparison across dimensional perspectives to identify and correct glare areas, thereby resolving the contradiction between avoiding device glare and preventing glare from other heat sources.
Solution Approach 2:
The patent implements a feedback mechanism where the glare area detection unit compares infrared images from different directions to identify glare regions. The image correction unit then uses this detection feedback to correct the infrared images by removing glare components, creating a feedback loop that continuously improves temperature measurement accuracy by eliminating harmful glare effects.
2Object-affected harmful factors
If all heat sources other than the subject are eliminated to prevent glare, then no glare appears on the infrared image, but this is not feasible as many heat sources are not movable
Solution Approach 1:
The patent extracts and isolates the glare component from the infrared image through the glare area detection unit, which identifies regions affected by glare from various heat sources. The image correction unit then removes this extracted glare component, effectively separating the harmful glare effect from the useful temperature information without requiring physical elimination of heat sources.
Solution Approach 2:
The patent introduces an intermediary processing system consisting of the glare area detection unit and image correction unit that mediates between the unavoidable presence of heat sources and the need for glare-free temperature measurement. This intermediary software processing layer enables glare removal without requiring physical modification or relocation of heat sources.
3Object-affected harmful factors
If two images are captured from different imaging directions to detect and correct glare areas, then glare prevention is achieved, but the device complexity and processing time increase
Solution Approach 1:
The patent segments the temperature measurement process into distinct functional units: an infrared imaging unit that captures images from multiple directions, a corresponding area detection unit that identifies matching regions, a glare area detection unit that locates glare, and an image correction unit that removes glare. This segmentation allows each unit to perform its specific function efficiently, reducing overall system complexity despite the multi-step process.
Solution Approach 2:
The patent performs preliminary actions by capturing a first infrared image and a second infrared image from different directions before conducting glare detection and correction. The corresponding area detection unit preliminarily identifies matching regions between images, preparing the data structure for subsequent glare analysis. This preliminary processing organizes the information in advance, making the actual glare correction more efficient.
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 method effectively prevents glare and allows for precise temperature measurement of the subject by correcting infrared images captured at different angles, resulting in a suitable image for temperature calculation.
Implementation Method 1
An infrared image acquisition device, called infrared thermography, which captures an image of an infrared ray emitted from a subject
Implementation Method 2
the infrared ray emitted from the infrared image acquisition device is reflected by the subject, and the infrared image of the infrared image acquisition device glares on the infrared image
Data Source
AI summary
Disclosed is an infrared image acquisition device capable of preventing a glare on a subject and acquiring an infrared image suitable for calculating the temperature of the subject. An infrared image acquisition device includes an infrared imaging unit, a corresponding area detection unit, a glare area detection unit, and an image correction unit. The infrared imaging unit acquires a first image and a second image having different imaging directions with respect to the subject. The corresponding area detection unit detects a first corresponding area and a second corresponding area corresponding to the subject in the first image and the second image. The glare area detection unit detects a first glare area where the first image has a larger amount of infrared rays than that of the second image, and a second glare area. The image correction unit corrects the first glare area based on the second glare area.