Webcam Depth Camera: 20 FPS AI Depth Sensing on Arduino VENTUNO Q
Depth cameras cost real money, which is why most student robots still steer by a single ultrasonic sensor. Samuel Alexander's Depth Multitool shows another route: a plain USB webcam plus a neural netw
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Ahmet Özel
AI Engineer. Computer Vision, RAG and LLM agents.
Keeping floating-point precision because INT8 flattened the near field is a more useful result than assuming quantization is always the right optimization. For the Sonar mode, I would be careful about turning the average depth of each half into a distance-like cue: relative monocular depth does not establish a stable metric scale by itself.
A nearby narrow obstacle can also disappear into that average when the background occupies most pixels. Testing a lower-depth percentile within the walking corridor, alongside explicit frame-age and invalid-output checks, would expose that failure mode. The heatmap can look convincing while the audible cue misses the object that matters most.