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Huawei P20 Pro smartphone 'can see in the dark'

Huawei's latest smartphone can take photos in near-dark conditions without using its flash or a tripod.
Huawei P20 Pro smartphone 'can see in the dark'

The P20 Pro takes exposures lasting up to six seconds to get enough light.

It then uses artificial intelligence to deliver sharp images and avoid the blurring and smearing normally associated with employing this technique handheld.

The Chinese company recently told the BBC it could soon become the world's bestselling smartphone brand.

At present, it is in third place behind Samsung and Apple, with US telecom networks' refusal to sell its handsets proving an obstacle.

Long exposure image
HUAWEI
Huawei boasted that its long-exposure feature gave it an edge over Apple's iPhone X
 

Like Samsung's Galaxy S9-series phones - which recently went on sale - Huawei's pitch to consumers for the P20 Pro is largely based on its new camera capabilities.

But while the South Korean company's S9+ made the leap to having two lenses on its rear, the P20 Pro is distinguished by being the first mainstream phone to feature three.

"Huawei doesn't have the brand Samsung or Apple have, so it's almost had to go the extra mile in terms of the product," said Ben Stanton, from the technology consultancy Canalys.

"And it's nice to see it taking the lead with some of the hardware it's producing.

"But the thing with camera technology is that unless you are looking at side-by-side comparisons [of photos] it can be very hard to tell which device is better.

"So, Huawei has its work cut out to sell some of the new features."

Huawei P20 Pro
HUAWEI
The P20 Pro features a "notch" in its screen to accommodate a 24-megapixel front camera
 

The P20 Pro will cost 899 euros including tax ($1,115; £788).

That is less than both the Galaxy S9+, which costs 949 euros, and the iPhone X, which starts at 1,149 euros.

Three lenses

The new flagship's three rear cameras each offer different capabilities.

The main sensor has an unusually high resolution of 40 megapixels.

But it uses "light fusion" software to combine data from groups of four adjacent same-coloured pixels to produce 10MP photos.

Hauwei launch event
HUAWEI
The P20 Pro and lower-range models were unveiled at a press event in Paris
 

The benefit is that images taken in low-light conditions should be less "noisy" as a consequence.

"If you had an area of a table and put 40 little buckets on top and it was raining, it would take a longer time to get an inch-worth of rain in the bottom of each than it would if you had 10 buckets four times the size," said marketing manager Peter Gauden.

"And that's essentially what we are doing. Using light fusion to combine four smaller pixels together to make a much larger pixel, and therefore enhance our capability of absorbing light into the sensor."

P20 Pro
HUAWEI
The P20 Pro is the first mainstream phone to feature three cameras on its rear
 

The facility can be switched off, however, if the owner wants 40MP snaps.

The two other cameras are:

  • a 20MP black-and-white sensor that can be used to take monochrome shots or to provide depth information to blur the background of images taken by the main sensor
  • an 8MP telephoto offering a hardware-stabilised 3x zoom lens, which can produce 5x shots when used in conjunction with a software-based digital zoom. This compares favourably to the 2x zoom of the Galaxy S9+ and iPhone X
Images of a leopard taken with P20 Pro phone
HUAWEI/KERCHAK
The P20 Pro is being marketed as a superior long-range photography choice to rival premium handsets
 

The P20 Pro uses object-recognition technology to automatically adjust its settings to suit each subject, and then catalogue the imagery, which it can do without having to send data to the internet.

In addition, the software makes composition suggestions when appropriate - such as when to adjust the phone to keep it level with the horizon, or to loosen or tighten a shot.

AI-enhanced photos

Like the Galaxy S9, the P20 Pro has a super-slow mode in which 960 frames per second can be filmed at 720p "high-definition" resolution.

Huawei P20 Pro
Image copyrightEPA
Image captionHuawei is seeking to convince consumers it can produce better photos than Samsung's new phones
 

But it also offers its unique long-exposure trick.

To achieve this, Huawei says, the device uses its ability to distinguish objects to find the optimum frame for each item contained in a shot.

It then takes information from other frames to improve the definition of each object, while ensuring that edges do not become blurred as a consequence.

Finally, all the digitally finessed items are merged together to create a single photo.

P20 Pro photo
The BBC took this image using the P20 Pro in near-dark conditions, using the long-exposure feature
 

As a result, a photo of the inside of a dim bar, for example, can end up looking brighter and more detailed than it appeared to the human eye.

But quirks can occur.

In one test by the BBC involving a person stood against a dim background, the frame selected of their face had them blinking despite the fact their eyes had been open for most of the six-second exposure.

Dialled-up threat

Huawei narrowed the gap with Apple last year, despite coming under pressure from other Chinese technology companies, including Oppo, Xiaomi and Vivo.

Manufacturer 2017 handset shipments Year-on-year change Market share
Samsung 317.7 million +2.0% 21.7%
Apple 215.8 million +0.2% 14.8%
Huawei (incl Honor) 154.2 million +10.7% 10.6%
Oppo 111.7 million +12.0% 7.6%
Xiaomi 92.7 million +75.0% 6.3%
Vivo 87.6 million +13.4% 6.0%
LG 55.8 million +1.2% 3.8%
Industry total 1.46 billion -0.5% 100%

However, efforts to crack the US market have been frustrated by AT&T and Verizon pulling out of talks to sell its devices.

Reports suggested local politicians had pressured the telecom operators to turn their backs on the company because of concerns it had ties to the Chinese government.

Richard Yu, chief executive of Huawei's consumer products division, told the BBC that the Americans feared his company was "too competitive [and] too strong".

P20 Pro
HUAWEI
The P20 Pro runs Android 8.1 and is powered by Huawei's proprietary Kirin 970 processor
 

One industry-watcher, who is impressed by the new phone, said that was not necessarily good news for its rivals.

"Huawei is going to throw everything that it's got at Europe now, because it needs to make up the sales volume expectation that it had in the US," said Ben Wood, from CCS Insight.

"Other smartphone-makers should be seriously concerned that the threat it poses has just been dialled up a whole order of magnitude as it's just released up resources and money to resolve some of its brand issues."

Source: BBC News:

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