Protecting with Buttprint Technology?

Buttprint Technology

Engineers in Japan have built a car that can tell one driver from another by the shape of their rear ends. See here a video report from Newsy:

Embedded Video Source by

Transcript by Newsy


Anti-theft systems use fingerprints, retinal scans, and voice and facial recognition to keep your valuables secure. But why stop there? There’s plenty more body parts to go round.

Nikkei Business Daily reports on a new technology under development in Japan.

“A group of engineers at the Advanced Institute of Industrial Technology has developed a system that can recognize individuals by analyzing how they apply pressure on a seat when sitting down.”

Analyzing seat pressure while sitting down, huh? A writer for Gizmodo paraphrases the news, and sets the tone for the rest of the story.

“Keys can be stolen, remote alarms can be hacked. But your butt-print is yours alone.”

That’s right, the new technology would limit the use of your car to pre-approved rears. It’s one more layer of security against auto theft. A writer for Motor Authority explains how it works.

“The technology is fairly simple. Using … 360 pressure sensors positioned under the seat, a computer works out whether it’s you sitting there, or someone else. If it’s not you, then it won’t let the car start. It’s even sophisticated enough to differentiate between sets of buttocks whatever clothing is being worn.”

The developers say they tested the device with six pairs of cheeks, and it was able to guess the right caboose 98% of the time. But that’s still a sizable margin of error. A writer for PCWorld lays out the most common concerns raised by tech bloggers.

“It’s fair to say that no person sits in their car the exact same way every time. And with the pressure sensors in mind, you’ll undoubtedly need to empty your back pockets before every drive. Or, suppose that you lose (or gain) enough weight to throw off the sensors, rendering you unable to drive your own vehicle — will you have to reset the system every time?”

The engineers hope to get their device in cars within three years. But will it get a warm reception? A writer for Dvice has mixed feelings.

“Normally a fan of anything that would keep my car from getting jacked, this new technology gives me pause. … Finding out that my butt has a unique ‘signature’ gives me a whole new set of neuroses…”

Transcript by Newsy.

(Image source:

Sources: Nikkei | Gizmodo | Motor Authority | PCWorld | Dvice

About the author


Norberto Moreau is co-owner of the group Allied Management Ltd (Hong Kong, London, Valencia). The group and his associates have activities in Yachting, Properties and IT.