Vision-Assist System Room State Detection Using Baseline Comparison
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Solution Overview
Problem
Visually impaired individuals face challenges in determining if items in a room are in their expected positions, leading to potential hazards like tripping or bumping into misplaced objects.
Innovation Solution
A vision-assist system equipped with an image sensor, memory, motion sensor, detection module, and output module that compares real-time images of a room with a stored baseline image to determine if items are in an 'in-order' or 'out-of-order' state, notifying the user through audio, visual, or haptic feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a vision-assist system with image sensors and detection modules is implemented, then the safety and navigation capability for visually impaired users is improved, but the device complexity and cost increase
Solution Approach 1:
The vision-assist system is divided into multiple functional modules: image sensor module, motion sensor module, detection module, and output module. Each module performs a specific function, making the complex system more manageable and maintainable while providing comprehensive safety monitoring through distributed sensing capabilities
Solution Approach 2:
The detection module serves as an intermediary between the image sensor and the output module. It processes raw image data, compares current room state with baseline images, and generates meaningful notifications. This intermediary layer simplifies the overall system architecture by centralizing the complex image processing and comparison logic
2Measurement precision
If real-time image capture and comparison is performed continuously, then the detection accuracy for out-of-order items is improved, but the energy consumption increases
Solution Approach 1:
Instead of continuous real-time monitoring, the system uses periodic image capture triggered by motion detection events. The motion sensor detects when a user approaches, triggering the image sensor to capture images at specific moments. This periodic action maintains detection accuracy while significantly reducing energy consumption compared to continuous monitoring
Solution Approach 2:
The system captures and stores baseline images of the room in its normal state before any disturbances occur. These pre-captured baseline images are used for comparison with subsequent images, enabling accurate detection of out-of-order items without requiring continuous real-time analysis, thus reducing energy consumption while maintaining detection precision
3Adaptability or versatility
If multiple sensors and processing modules are integrated, then the functionality and user assistance capability are improved, but the ease of operation and setup difficulty worsen
Solution Approach 1:
The system merges multiple functional capabilities into a single integrated vision-assist device: image sensing, motion detection, image processing, baseline comparison, and notification output. This consolidation provides versatile functionality while simplifying user interaction, as users deal with one unified device rather than multiple separate components requiring coordination
Data Source
AI summary
Vision-assist systems that inform visually impaired users regarding the current state of a room are disclosed. In some embodiments, a system includes an image sensor for obtaining a baseline image of the room including one or more items in the room positioned in an in-order state, and memory to store the baseline image. The system may include a motion sensor to detect when the user is approaching the room to activate the image sensor to obtain a real-time image of the room. A detection module determines whether the room and items in the room are in an in-order state or an out-of-order state when compared with the baseline image, and an output module notifies the user of the current state of room. In this manner, a visually impaired user can be informed of the state of a room which thereby aids the user in navigating or moving within the room.