Huawei's P30 Pro is naturally the first mobile phone with the best shooting ability. As the benchmark of mobile phone night scene shooting, the P series not only has such hard skills as' big bottom 'and' big aperture ', but also updates and adds the rare ryyb array, which makes the CMOS of mobile phone completely transformed. It can be said that with ryyb array, Huawei's P30 Pro can 'capture night like day'. What kind of 'new species' is ryyr? Let's start with the pixel layout of mobile phone sensors.
How to achieve 40% increase of light input
The traditional CMOS pixel arrangement is RGB array, which consists of four pixels: one red, one blue and two green. Because these three colors are the three primary colors of light, white can absorb all colors of light. We can see it by looking at the following three primary colors. CMOS sensor based on RGB array has been used in the industry for 40 years.
Ryyb array description
The specific principle of ryyb is to replace green with yellow, and yellow is the combination of green and red, and the brightness is the superposition of the two.
Yellow is the combination of green and red, and also the superposition of their brightness
Yellow = Red + green, ryyb = 25% red + 2 (25% red + 25% green) + 25% blue, the light input is 150% of RGB array theoretically.
Although the green channel has indeed been sacrificed, in fact, the light input of the red channel has increased. Therefore, Mr. Yu Chengdong's saying that the light input has increased by 40% is not false.
Color temperature adjustment: a three-year battle of algorithms
At the same time, in theory, because ryyb array has more yellow pixels, the photo is prone to yellow, and the lack of green pixels will also affect the saturation. Let's take a look at the sample of Huawei's P30 pro and see how the color deviation problem of ryyb array is solved.
The amount of light is on the one hand, with ryyb does not yellow is simply a miracle
In fact, we didn't find that the photos turned yellow or blue, which shows how much effort Huawei has made in algorithm and AI optimization to achieve this effect. However, we can see that there is a little white problem in the photos, which needs to be further corrected by the algorithm update later.
As a product of "trial crab", Huawei's P30 Pro can effectively control the color temperature.
Even when taking bright pictures, the saturation control of Huawei P30 Pro is very good, and there is no problem of over powder or over green. Whether it's bright color mode or black-and-white mode, Huawei P30 Pro can play well, and the saturation adjustment is very good.
Mr. He Gang, President of Huawei terminal mobile phone product line, said that in order to ensure the accuracy of ryyvb array in color matching, Huawei has spent three years. We don't know the story behind this' algorithm war ', but it's absolutely wonderful.
Write at the end
The ryyb array of Huawei P30 Pro further increases the sensitivity from the CMOS level. With ryyb array backing, Huawei P30 Pro achieves the highest ISO 409600 sensitivity. This leads to better night scene exposure performance - although 'big background + three shots + big aperture + AIS handheld super night scene' is quite barbaric.
From the analysis of the actual principle, ryyb array needs a strong technical team to develop the algorithm, and also needs the support of hardware level AI computing power. In this way, Huawei P30 pro with ryyb array can't be more normal. Huawei's P30 Pro has scored 112 points on the DxO mark and won the best shooting smartphone award in 2019 from the world Imaging Technology News Association TIPA. Behind this success, ryyb array has contributed a lot.