Chinese camera cuts through smog to record details almost 30 miles away
Researchers in China have created a camera that can record through the atmospheric pollutants of Shanghai to pick out objects just 60cm (2ft) high at a distance of 45 kilometers (28 miles). The ‘camera’ uses laser technology to fire light of a specific wavelength at a distant object and then uses a sensor to record the light when it returns so it can produce a picture that shows shapes with some distance information.
The project is being carried out by scientists at the University of Science and Technology of China in Shanghai, who have so far been able to record the form of a distant building with enough resolution to show the windows. The picture is technically a photograph, but not quite as we would expect to record with a normal visible light camera. The idea of the research is to produce an instrument that can ‘see’ further than is possible using visible light, and to be able to see in conditions visible light can’t get through.
|At top left you can see the actual set-up of the LiDAR camera mounted inside the telescope, while the diagram top right shows what's going on inside.|
The scientists mounted a LiDAR (Light Detection And Ranging) camera inside a Cassegrain mirrored telescope and fired a near-infared (1550nm) beam from the top of a building on Chongming Island in Shanghai towards the K11 skyscraper 45km away in the centre of the city. As the scientists knew the distance and the speed of the light they were using they were able to calculate when it would return and thus isolate the image forming light from any other stray light in the scene.
|An illustration showing how different methods of image extraction can be used to yield a more detailed image.|
The quality of the image recorded is hardly going to serve for holiday pictures, but outlines, shapes and forms can easily be seen even when the atmosphere was too thick for visible light. The technology will be useful for seeing when we can’t see – through clouds, atmospheric haze and smog and for security surveillance.
|This shows how the researchers are using distance information from the LiDAR to create depth maps of scenes that can hardly be seen with the naked eye|
The researchers say they can improve the resolution and the range of their invention, and that they will be able to create 3D images in the future. Already with the range defining abilities of the LiDAR system they can incorporate depth and distance information into their images.
You can read the research paper as a PDF online.
Metabones has updated the firmware of select Speed Booster and Smart Adapter units to bring frame rates up to 10 fps to Sony a7 III camera systems.
A month after the the U.S. Department of Homeland Security (USDHS) sent out an alert stating that drones manufactured in China presented a security risk, DJI has told a Senate subcommittee that the China-based company doesn't collect flight logs and images to send back to the Chinese government.
Fujifilm has issued an advisory after it discovered counterfeit rolls of film bearing the ‘Fujifilm’ brand have been discovered.
A known Samsung leaker claims Samsung engineers informed him the upcoming Note 10 smartphone will feature a ‘three-stage variable aperture.’
The Strobe attaches to any drone, weighs only ten grams and has power for more than two hours of strobe action.
Phase One's new Creative Control Package update for the IQ4 Infinity Platform brings a new Raw capture mode the averages together multiple frames to yield a higher-quality image.
Bye Bye Camera detects and removes all humans from your pictures but is not meant to be a photo tool.
Polish artist Michal Karcz shared a post explaining that 500px requested he no longer post his content on the platform, as his images are photo manipulations, not photography.
Leica's new M-E (Typ 240) replaces the M-E (Typ 220). It comes with updated features and a smaller price, making it a little less painful on the wallet to hop on the Leica bandwagon.
The Wingo Pro is essentially a polycarbonate wing on a 2-meter string that allows you to control the camera's flight and keeps the subject right at the center.
Samsung's Isocell Bright GW1 sensor has been designed to rival the 48MP Quad-Bayer offerings from Sony.
Archivist Dr. Johnathan Burgess has teamed up with fellow archivist Jason Scott to publish nearly 2,400 images captured by an unknown individual at Ground Zero following the 9/11 attacks on the World Trade Centers in New York City.
Alien Skin Exposure X4 4.5 improves performance, adds the ability to preview images on memory cards before import, assigns metadata while shooting tethered, adds LUT support and editable light effects, and more.
Looking for a new lens for your camera? Our lens buying guides have recommendations for all kinds of situations, so if you have a Canon/Nikon DSLR or Fujifilm/Sony mirrorless camera, have a look.
It's an official rule for drivers at the Combine Demolition Derby in the tiny town of Lind, Washington, to be aggressive or be disqualified. Not a single driver exhibited any such lack of aggression during a day of flying dirt, flying beer cans, twisted metal and screaming cheers.
Dale Sharpe, an Australian storm-chaser, landscape photographer and Nikon Ambassador has passed away after a tragic roadside accident while in the United States.
Summer is here, which means it's time for Chris and Jordan's roundup of new waterproof cameras for 2019: the Olympus Tough TG-6, the Ricoh WG-6, and the Panasonic TS7. Find out which one is right for your next vacation.
The latest version of Hasselblad's CFV digital back and the new super-slim 907X camera body make a beautiful combination – take a closer look.
Cinema5D is black with part two of its documentary series that shares an exclusive behind-the-scenes look at the work Fujifilm has put into developing, engineering and launching its 100-megapixel GFX 100 mirrorless camera system.
The company says it looking into providing ‘new imaging experiences’ with technologies such as artificial intelligence.
The new models are designed to hold DSLRs or larger cameras and long tele lenses.
According to a report from German business newspaper Handelsblatt, Leica is cutting up to 100 jobs from its headquarters and adding up to 40 ’digital experts’ as part of a restructuring plan to help push its smartphone and computational photography technology forward.
Panasonic's full frame S Pro 50mm F1.4 has quickly become a staff favorite thanks to the stunningly sharp results it produces. Have a look for yourself.
We had the chance to get a feel for the new Hasselblad X1D II 50C along with the X system's first zoom lens: the 35-75mm F3.5-4.5. Take a closer look at what's been updated on the X1D.
Accessory maker Techart has announced the TZE-01, the first autofocus adapter for using Sony E-mount lenses with Nikon's Z series cameras.
Sandmarc's new accessory lens helps to create a cinematic look when shooting on the iPhone.
The ZenFone 6 flip camera withstands an awful lot of abuse by Zack from the Youtube channel JerryRigEverything.
Jordan reviews the Deity Connect wireless microphone. Find out why this is the mic system he's wanted for a decade, and why he thinks it's a compelling choice for so many people who shoot video.
Rumors have been circulating about a possible Spark 2 drone release from DJI this summer. DroneDJ recently confirmed that the release is now on hold indefinitely.