Collect representative images
Gather images or video frames from the device viewpoint with diverse lighting, weather and mobility scenarios, and label obstacle classes or free-space annotations.
Assistive vision for navigation. Inspect classification performance.
Assistive vision for navigation aims to detect obstacles, drivable paths or landmarks to support mobility. Robust labels, edge-case images (low light, occlusion) and operational metrics such as false negatives and latency are central to real-world behaviour.
Learning concept · Not a validated service
Assistive vision for navigation aims to detect obstacles, drivable paths or landmarks to support mobility. Robust labels, edge-case images (low light, occlusion) and operational metrics such as false negatives and latency are central to real-world behaviour.
A proposed application: a wearable or smartphone system that highlights obstacles and safe directions to a user, always keeping a human in the loop for safety-critical decisions. This is a suggested extension and is not implemented in the starter code.
Gather images or video frames from the device viewpoint with diverse lighting, weather and mobility scenarios, and label obstacle classes or free-space annotations.
Train a small classifier, detector or segmenter on held-out training data to establish a reproducible baseline for later comparison.
Report recall/precision per hazard class, false-negative rates, and inference latency on target hardware rather than only overall accuracy.
Design a UI that surfaces model confidence, example frames and an easy correction loop so human reviewers can override or correct predictions.
The supplied starter loads scikit-learn's digits dataset (handwritten numerals), splits it, fits a RandomForestClassifier, prints a classification report and displays a confusion matrix. It does not use navigation images, obstacle labels, detectors or segmentation models related to assistive navigation.
X_train, X_test, y_train, y_test = train_test_split(
digits.data,
digits.target,
test_size=0.25,
random_state=42,
stratify=digits.target,
)
model = RandomForestClassifier(n_estimators=300, random_state=42)
model.fit(X_train, y_train)
predictions = model.predict(X_test)
The code uses the digits dataset of handwritten numerals, which is unrelated to assistive navigation imagery or obstacle labels. Results on this toy dataset do not validate navigation performance, real-world robustness, latency or safety-critical failure modes.
A proposed extension: replace the digits dataset with labelled egocentric frames, train a small detector or segmentation model, and build a reviewable inference pipeline that flags low-confidence frames for human confirmation.
This is a potential application pathway, not a delivered product. The supplied starter does not implement this service or validate it with real users.
Networkers Home runs this topic inside its AI Engineer Course, with placement support and hands-on labs.