Cape Argus

Scary spy cams at a roadside near you…

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FRIDAY AUGUST 11 2017

THE NEXT generation of spy cameras are set to catch speeding drivers and hit them with fines – without even needing to check their numberplat­es first. These roadside cameras could catch unruly drivers just by looking at scratches on their car or irregulari­ties in the paintwork.

The “repression network” uses artificial intelligen­ce to differenti­ate between cars by spotting tiny difference­s between them. Researcher­s say their software is so sophistica­ted, it could some day also be used for “face and persona retrieval”.

The system uses artificial intelligen­ce to learn from what it sees, according to researcher­s from Peking University. This will help the police, as it means they can catch people who have changed their numberplat­es.

“Licence plates are often easily occluded, removed or even faked, which makes licence plates less relevant to each single vehicle,” researcher­s wrote in their paper. For example, characters like ‘8’ and ‘B’ and ‘O’ and ‘0’ can easily be confused.

“The growing explosion in the use of surveillan­ce cameras in public security highlights the importance of vehicle search from large-scale image databases,” they said.

“Precise vehicle search aiming at finding out all instances for a given query vehicle image is a challengin­g task as different vehicles will look very similar if they share visual attributes.”

To get around this, researcher­s have proposed a “repression network”, a multitask learning framework that looks for distinctiv­e features on a car – such as scratches or the type of paintwork.

The main difference with this system is in how it uses the huge amount of data it gets from the cameras. Researcher­s have created a “repression layer” to manage the data generated, allowing it to only focus on both broad and salient details.

“The basic idea of building such a model is that we want the deep network to generate two independen­t sub-features from two different levels – coarse attributes and details,” the researcher­s write.

This means “that each sub-feature can embed more discrimina­tive informatio­n for that level and can be better used to perform precise retrieval tasks”. It is likely the cameras will be even more effective at slapping fines on people caught driving too fast.

Worryingly, the technology could mean government­s and big corporatio­ns could track the movements of people. The software is still in its early stages of developmen­t and there are currently no plans to roll it out. – Daily Mail

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