Imaging System Addressing Specular Reflection via Multi-Perspective Composite
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Solution Overview
Problem
Imaging devices struggle to capture clear images of objects with smooth surfaces due to specular reflections, which cause overexposure and distortions, particularly in environments with intense artificial lighting like fulfillment centers.
Innovation Solution
The system employs addressable illuminators and imaging devices to capture images under multiple lighting conditions, identifies and removes specular reflections by processing data to combine optimal intensity levels from different images, generating a composite image free from specular artifacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If imaging devices capture images under intense artificial lighting, then illumination intensity is improved, but specular reflections cause overexposure and image quality deteriorates
Solution Approach 1:
The patent segments the imaging process into multiple captures under different lighting conditions, then processes each capture separately to identify and remove specular reflection artifacts before combining the results into a final image
Solution Approach 2:
The patent changes lighting parameters by capturing images under multiple different lighting conditions and uses image processing to adjust pixel intensity values, removing specular reflection artifacts while preserving diffuse reflection information
2Manufacturing precision
If multiple images are captured and processed to remove specular reflections, then image quality is improved, but device complexity increases
Solution Approach 1:
The patent introduces an intermediary processing system that analyzes multiple captured images, identifies specular reflection artifacts through pixel intensity comparison, and generates a corrected composite image that eliminates reflections while preserving surface details
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 approach effectively reduces the adverse effects of specular reflections, producing clear and accurate images by minimizing high-intensity pixels associated with specular artifacts, resulting in improved image quality.
Implementation Method 1
Diffuse reflection is the reflection of light from a coarse or rough surface of an object, which thereby causes the incident rays to be reflected at varying disparate angles of reflection
Implementation Method 2
Specular reflection is the reflection of light from a smooth surface of an object, which thereby causes the incident rays to be reflected at common angles of reflection
Data Source
AI summary
The high-intensity specular reflection of light from a surface of an object may create distortions in images of the object, in locations determined based on a perspective of an optical sensor. Multiple images of the object taken from different perspectives may include multiple specular artifacts in different locations, and a composite image of the object that omits such artifacts may be generated based on the multiple images. In particular, pixels of each of the images corresponding to the locations of the specular artifacts and having optimal intensities may be identified. The composite image may be generated based on the pixels having optimal intensities, and by excluding the pixels corresponding to the specular artifacts.