Cressy from the temple of Wafei
量子位 | 公众号 QbitAI
A video shot by a blogger made the capture function of Huawei P70 unexpectedly popular......
Look, there's a high-speed machine here, isn't it already dazzling for you?
However, the P70 mobile phone can capture high-definition large images in seconds, and compare it with the results of video frame extraction.
At the scene taken by the blogger, this photo has already amazed the surrounding audience, causing a wave of amazement.
There was even more admiration on Weibo, including the praise of the well-known science and technology blogger Baoyu and the professor of the Department of Computer Science of Tsinghua University, Ma Shaoping.
The principle behind it has also sparked speculation, and some people directly @ the CTO of Huawei terminals asked for an explanation, and the CTO personally posted an article introducing the new technology behind it.
AI algorithms play a big role
The Pura 70 is equipped with a motion engine called "XD Motion", the core principle of which is dual shutter speed, double exposure, and AI algorithms to restore photos in high definition.
When shooting objects moving at high speeds, there are two cameras with different exposure durations working at the same time, each performing different tasks.
Cameras with short exposure times are responsible for capturing details of the main object, while long-exposure cameras are tasked with recording relatively fixed background information.
For the advantages of this method of operation, photography blogger Mu Xi gave this analysis, which was officially certified by the CTO:
Long exposures improve the signal-to-noise ratio but create motion blur, while short exposures accurately freeze objects but are noisy.
Therefore, the advantages of the two are complemented by calculation, which not only improves the signal-to-noise ratio, but also ensures the clarity of the picture.
As for how to merge the two cameras after they have done their respective jobs, it's time for AI to come into the picture.
The system will match the local features of the double-exposed images through AI motion vector calculation, and restore the blurry images through calculation to obtain high-definition photos.
For example, the photo you saw at the beginning actually went through this process of processing from blurry to clear.
According to reports, with the blessing of the algorithm, while ensuring the capture rate, the Pura 70 can greatly restore the details, and can capture moving objects with a speed of up to 300km/h.
This speed means that speeding cars, fast-running pets, and even high-speed trains in operation can capture high-resolution photos.
After reading it, some netizens joked that the big mouth was hiding in the phone again.
However, to be serious, although it is integrated with AI algorithms, it can indeed adapt to the needs of many scenarios.
All devices will eventually move towards AI
Capturing images at high speed with algorithms is just the tip of the iceberg of AI's many applications on mobile phones.
Speaking of Huawei P70 alone, it integrates many AI functions such as intelligent retouching and multi-modal large models, and the AI mobile phones launched by other manufacturers are too numerous to mention.
Not only are major mobile phone manufacturers like Huawei, Xiaomi, and OV, but chip suppliers like Qualcomm are also adjusting their products according to the computing power characteristics of AI.
In short, in the era of rapid development of AI, it is an inevitable trend for all terminal devices, including mobile phones, to become intelligent.
However, the specific implementation method may be that each vendor in the ecosystem has its own unique path.
However, it is certain that manufacturers, including Huawei, who recognize this trend, have rolled up on a new track.
Reference Links:
https://weibo.com/1945906841/Oar8yDASU
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