Traditional Culture Encyclopedia - Photography and portraiture - What is the difference between digital wide dynamic and ultra-wide dynamic?

What is the difference between digital wide dynamic and ultra-wide dynamic?

1, with different decibels.

Digital wide dynamic camera has no clear decibel number.

The decibel number of the ultra-wide dynamic camera is 120dB.

2. Different degrees of image reduction

The recovery degree of digital wide dynamic image is not as high as that of ultra-wide dynamic image. When ultra-wide dynamic faces extreme lighting conditions, the image restoration degree is higher and the details are more realistic.

Wide motion is a technique used to let the camera see the image features in a very strong contrast. The principle of this technology is to expose twice at the same time, once fast and once slow, and then combine them so that the bright and dark objects on the screen can be seen clearly at the same time.

Extended data

Application of ultra-wide dynamics in face recognition;

Regarding the acquisition of images, the backlight problem that has always existed can not be ignored. Although we can simply take photos and photos by changing the position or turning to different angles in our daily life, the effect of security industry images must be accurate. Because every detail in the image may affect the final comparison result and speed.

We solved the problem of different temperature and humidity in geographical location. For lighting, it can also achieve the ultimate, fully meet the application of outdoor scenes, truly land on the scene, and become a weapon for engineering contractors to take orders.

Baidu encyclopedia-full dynamic

Baidu Encyclopedia-Super Wide Dynamic