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Comment by doctorpangloss | Hacker News Reader

Nobody is going to sit around and wait for your app or website to collect 5 minutes of data for calibration.

The browser doesn't let you collect all this sensor data.

Mobile Safari doesn't tell you the known camera calibration.

The Apple Vision Pro doesn't give you any data at all.

Nonetheless, 8thwall's XR8 takes seconds to calibrate absolute scale. It has to do device lookup for approximate calibrations for your iPhone model.

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Depends on the use case. A car that requires five minutes of driving to calibrate its cameras once after exiting the factory would be completely acceptable. A drone that has a pre flight calibration when one first takes it out of the box would be okay.

Without calibration do you know you are in spec?

If I bought a car and 5 min into driving it tells me that the camera system is defective you are not gonna have a happy customer.

How do you jump from OP "after exiting the factory" to your "bought a car and 5 min into driving" ? Those are two rather different things. Are you just looking for a pointless argument?

If testing takes too long to be sustainable outsourcing it to the customer seemed like the suggestion? Admit perhaps a bad example but point still stands.

Take the other example then: "pre flight calibration when one first takes it out of the box".

Realistically, the dealership is likely to drive the car for a few minutes, if only to put it in the right place on the dealership lot, fill it with gas, and get it washed before delivering it to the customer.

If there was an issue with the camera system it could be caught at that time.

When I got my Model 3 in 2019, the cameras had to calibrate before I could use AutoPilot. Took I think 10 miles of driving?

It even has an option in the user Service menu to recalibrate them.

Calibrate absolute scale to a margin where people can no longer tell most likely. Its a huge difference between that and you can do stereo at half a kilometer.

Do you know what does 8thwall use for SLAM? is it OrbSLAM or something else?

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