China has developed a camera that can capture images 45km away, through fog and dust
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China has developed a camera that can capture images 45km away, through fog and dust


Physicist Zheng-Ping Li and colleagues at the Chinese University of Science and Technology in Shanghai have developed a new optical system based on LIDAR technology capable of capturing people in hazy conditions. city ​​from a great distance.

Specifically, Zheng-Ping Li and colleagues have combined ultra-sensitive photon sensors and unique image processing algorithms to weave the data together to achieve super high resolution images. This makes their new device able to shoot from a distance of 45 km even when obscured by haze.

This new optical technique works on a LIDAR principle – irradiate the object with a laser, then through the photon light reflected from the object itself to capture the image. This prevents it from being affected by photons from other light sources.


Humans can capture objects at great distances thanks to the new algorithm. Photo: Technology Review.

This entire innovative optical system is only about the size of a shoebox and can be applied in many different fields in the future, such as distance positioning or object detection.

The super-sensitive camera system is currently located on the 20th floor of a building on Chongming Island (Shanghai) and pointed the lens at the Pudong Civil Aviation building 45 km away.

According to Zheng-Ping and his colleagues, the system, if refined, will be able to take pictures up to 100km away.

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