Knowledge Centre

Google Lookout: App reads grocery labels for blind people

Written By - Mathew Woolley - August 13,2020

Google Lookout: App reads grocery labels for blind people

An illustration shows a phone screen with a jar of mustard, left, and a document, right, with a speech bubble coming off the mustard jar to illustrate the app's ability to identify it. The speech bubble reads: "Mustard with pickles, 14oz"

Google's AI can now identify food in the supermarket, in a move designed to help the visually impaired.

It is part of Google's Lookout app, which aims to help those with low or no vision identify things around them.

A new update has added the ability for a computer voice to say aloud what food it thinks a person is holding based on its visual appearance.

One UK blindness charit welcomed the move, saying it could help boost blind people's independence.

Google says the feature will "be able to distinguish between a can of corn and a can of green beans".

Eye-catching, not easy

Many apps, such as calorie trackers, have long used product barcodes to identify what you're eating. Google says Lookout is also using image recognition to identify the product from its packaging.

The app, for Android phones, has some two million "popular products" in a database it stores on the phone - and this catalogue changes depending on where the user is in the world, a post on Google's AI blog said.

In a kitchen cupboard test by a BBC reporter, the app had no difficulty in recognising a popular brand of American hot sauce, or another similar product from Thailand. It could also correctly read spices, jars and tins from British supermarkets - as well as imported Australian favourite Vegemite.

But it fared less well on fresh produce or containers with irregular shapes, such as onions, potatoes, tubes of tomato paste and bags of flour.

If it had trouble, the app's voice asked the user to twist the package to another angle - but still failed on several items.

The UK's Royal National Institute of Blind People (RNIB) gave a cautious welcome to the new feature.

"Food labels can be challenging for anyone with a visual impairment, as they are often designed to be eye-catching rather than easy to read," said Robin Spinks from the charity.

"Ideally, we would like to see accessibility built into the design process for labels so that they are easier to navigate for partially sighted people."


But along with other similar apps - such as 'Be my eyes' and 'NaviLens', which are also available on iPhones - it "can help boost independence for people with sight loss by identifying products quickly and easily".