Pedestrian Navigation Obstacle Detection via Image Analysis
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Solution Overview
Problem
Visually impaired individuals face challenges in navigation, particularly when walking, due to the lack of effective obstacle detection and avoidance systems.
Innovation Solution
An electronic device equipped with image capturing, processing, and recognition modules that utilize algorithms like Fully Convolutional Networks and Conditional Random Fields to detect and categorize obstacles, and track pedestrian movement, providing real-time navigation assistance through a mobile device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If blind tracks are laid on roads to assist visually impaired individuals, then walking assistance is provided, but navigation capability when obstacles are present deteriorates
Solution Approach 1:
The patent introduces an electronic device as an intermediary between visually impaired pedestrians and the environment. The device captures images through a camera, processes them to detect obstacles and analyze movement tracks, then provides audio guidance through a speaker. This intermediary system bridges the gap between blind tracks and obstacle detection, enabling reliable navigation even when obstacles are present on the road.
2Reliability
If image capturing and processing modules are added to detect obstacles, then navigation reliability improves, but device complexity increases
Solution Approach 1:
The electronic device integrates multiple functions into a single portable unit: image capturing through a camera module, processing through a processor that runs obstacle detection algorithms and movement track analysis, and output through a speaker for audio guidance. This multi-functional integration achieves reliable navigation capability while keeping the device portable and relatively simple in structure, avoiding the need for separate complex systems.
Data Source
AI summary
A method for navigating a pedestrian, implemented in an electronic device, includes, capturing images of an environment of a road around the pedestrian at preset time intervals in response to a navigation request from a mobile device carried by the pedestrian, and determining whether at least one first obstacle exists on a path of the pedestrian according to the captured images. Other pedestrians may be recognized in each image, and a movement track of the other pedestrian may be determined. Determine whether at least one second obstacle exists on the road and determine that at least one second obstacle exists on the road if the other pedestrian is deviating from a single direction. An obstacle avoidance prompt is sent to the mobile device if first obstacle and/or second obstacle exist on the road.