Multispectral Imaging for Navigation Obstacle Detection
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Solution Overview
Problem
Conventional imaging systems for navigation of mobile platforms are often too expensive, bulky, or lack sufficient contrast under common environmental conditions, making them unreliable for safe auto or assisted navigation.
Innovation Solution
The development of multispectral navigation systems that include a multispectral imaging module, a communication module, an orientation and/or position sensor, and a controller to control the operation of these components, providing multispectral image data that enhances scene evaluation and obstacle detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional imaging systems are used for navigation, then the system cost and size are reduced, but the contrast and reliability under common environmental conditions deteriorate
Solution Approach 1:
The imaging system is segmented into multiple spectral channels (visible, near-infrared, and other bands) that operate independently but are integrated through the common optical path and focal plane array. This segmentation allows each channel to capture specific spectral information optimized for different detection needs, improving overall reliability without requiring separate complete imaging systems for each function.
Solution Approach 2:
The imaging system achieves multi-functionality by capturing multiple spectral bands simultaneously using a single optical path and focal plane array. The visible band provides conventional imaging, while the near-infrared band enhances contrast for navigation and obstacle detection. This universal design improves navigation reliability without proportionally increasing device complexity.
2Illumination intensity
If conventional imaging systems are used, then the system is simpler and cheaper, but sufficient contrast under common environmental conditions is not achieved
Solution Approach 1:
The system changes the spectral parameter by capturing images in multiple spectral bands (visible and near-infrared) simultaneously. The near-infrared band provides enhanced contrast for certain features and environmental conditions, allowing the system to maintain reliable navigation performance without increasing visible-light illumination requirements or system complexity.
3Measurement precision
If multispectral imaging is implemented, then scene evaluation and obstacle detection are improved, but the device complexity and cost increase
Solution Approach 1:
The system merges multiple spectral imaging functions into a single integrated device using a common optical path, beam splitter, and focal plane array. This consolidation achieves high measurement precision for scene evaluation and obstacle detection while minimizing the increase in device complexity by sharing critical components across all spectral channels.
Data Source
AI summary
Multispectral imaging and navigation systems and related techniques are provided to improve the operation of manned or unmanned mobile platforms, including mobile sensor or survey platforms. A multispectral navigation system includes a multispectral imaging system and a logic device configured to communicate with the multispectral imaging system. The multispectral imaging system includes a multispectral imaging module configured to provide multispectral image data corresponding to a projected course for a mobile platform. The logic device is configured to receive the multispectral image data, receive orientation and/or position data corresponding to the multispectral image data, and generate maneuvering obstacle information corresponding to the projected course based on the orientation and/or position data and the multispectral image data.