Extreme dark shooting experience of mobile phone: RYYB sensor with 40% increase in light input is the correct solution.

Grass sticks to the waist, you walk in the pot. This is the editor of Niu Zhan. His salary has been spent and he has no money. The editor has been editing for a long time and brought this article to everyone. There is no suspense, let's meet. Due to the limitation of CMOS size and lens aperture size, the camera module of mobile phone often has a small amount of light and the unit pixel area of sensor is not large, so dark light shooting has always been a serious injury to mobile phone. Even if the manufacturer can improve the brightness of the picture in the dark environment by improving the sensitivity of the sensor, the result is that the sensor will receive more noise, thus generating more noise, and the image quality will be greatly reduced while improving the brightness.

However, there is nothing we can do about the mobile phone shooting in dark light. Mobile phone manufacturers have made many improvement measures for dark light shooting from the aspects of software and hardware. For example, at the software level, there are various super night scene technologies. By taking a few short-exposure photos, the imaging effect at night is not inferior to that of professional cameras. But for photography in extremely dark light, this technology still seems to be insufficient. After all, it takes at least 45 seconds to generate a super night scene photo, and the processing capacity of 60 frames per second of photography is huge, which is unbearable for the mobile phone SOC.

At first, mobile phone manufacturers adopted the dual-camera scheme of black-and-white lens assisting the main camera to improve the picture performance in dark light.

On the hardware level, manufacturers start with the lens and the sensor itself. Since the size of the mobile phone determines that it is almost impossible to greatly increase the aperture and sensor size, optimizing the filter seems to be the simplest and most direct way to increase the amount of light. For example, on Huawei P9, there is a combination of black and white lens and main camera. The black-and-white lens directly loses the filter, and the light input is high, so it can record more light and shade and picture details, and then combine with the main camera to realize the balance of details, brightness and image quality in dark light.

RYYB array changed the green filter to yellow, and the light input increased by nearly 40%.

Nowadays, there are actually very few black and white shots. On the one hand, software algorithms such as Super Night Scene are already competent for night scene shooting, on the other hand, the main camera has a better choice for dark light shooting. The new RYYB sensor is different from RGGB Bayer array used in general sensor filters. Changing the original green filter to yellow means that both red and green light sources can enter. The extra red light source enters, and the amount of light entering increases by nearly 40%, which is more convenient for shooting in extreme dark conditions. We can see that after the inverse algorithm of RYYB sensor is mature, the function of black and white lens is also replaced by it, which allows manufacturers to place more wide-angle and telephoto lenses in the very tight mobile phone space.

As far as the paper data is concerned, the optical input of the sensor with RYYB filter is 140% of that of the sensor with RGGB filter of the same specification. But you can know the actual effect through a small test.

This time, the author compares the Glory V30 PRO with an Android flagship machine. The CMOS used by Glory V30 PRO is Sony IMX 600 with a single pixel of 2m. Using RYYB array, F11.6 large aperture. As a flagship of Android, the main camera CMOS is IMX 586, which is very common in flagship machine. The single pixel is 1.6m, and the traditional RGGB array is also f11.6. We took pictures in extremely dark light and compared the difference in image quality between the two.

Extremely dark photographic contrast

Extremely dark photographic contrast

By comparison, it can be found that IMX 586, as a contrast, is completely dark in the dark environment, and it is almost indistinguishable in the dark except that the distant light can record the picture. IMX 600 with RYYB array is comparable to night vision device in dark environment, and can still record the surrounding scenery. The improvement brought by 40% light is evident.

Compared with the traditional standard Bayer array, RYYB array can obviously improve the imaging ability of mobile phones in low light. If you want to improve your dark imaging ability,

Learn more about "extreme dark shooting experience of mobile phone: RYYB sensor with 40% increased light input is the correct solution", please pay attention to the column of deep space game information, and the deep space editor will continuously update more scientific and technological information for you.

Heart of the King 2 Click on the demo.