Science Fiction Dictionary
A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z

 

MIT 3D Scanner - 1000x Improvement?

MIT has come up with a new polarization technique that can increase the resolution of any cheap, conventional 3D-imaging device by a factor of 1,000.


(3D scanner)
By combining the information from the Kinect depth
frame in (a) with polarized photographs, MIT researchers
reconstructed the 3-D surface shown in (c). Polarization
cues can allow coarse depth sensors like Kinect to achieve
laser scan quality (b).

The researchers’ experimental setup consisted of a Microsoft Kinect — which gauges depth using reflection time — with an ordinary polarizing photographic lens placed in front of its camera. In each experiment, the researchers took three photos of an object, rotating the polarizing filter each time, and their algorithms compared the light intensities of the resulting images.

On its own, at a distance of several meters, the Kinect can resolve physical features as small as a centimeter or so across. But with the addition of the polarization information, the researchers’ system could resolve features in the range of tens of micrometers, or one-thousandth the size.

For comparison, the researchers also imaged several of their test objects with a high-precision laser scanner, which requires that the object be inserted into the scanner bed. Polarized 3D still offered the higher resolution. A mechanically rotated polarization filter would probably be impractical in a cellphone camera, but grids of tiny polarization filters that can overlay individual pixels in a light sensor are commercially available. Capturing three pixels’ worth of light for each image pixel would reduce a cellphone camera’s resolution, but no more than the color filters that existing cameras already use.

The new paper also offers the tantalizing prospect that polarization systems could aid the development of self-driving cars. Today’s experimental self-driving cars are, in fact, highly reliable under normal illumination conditions, but their vision algorithms go haywire in rain, snow, or fog. That’s because water particles in the air scatter light in unpredictable ways, making it much harder to interpret.

In his excellent 1954 novella The Houses of Iszm, Jack Vance wrote about feeler-planes that enabled the creation of incredibly detailed 3D images in just a minute or two:

He stood rigid as feeler-planes brushed down his body. In a glass dome a three-dimensional simulacrum of himself six inches high took form.
(Read more about Jack Vance's 3D feeler-planes)

Feeler-planes were used by the Iszic to create tri-type records that were so detailed (high resolution), fingerprints were captured in three-dimensional models of the subject's hands.

Via MIT.

Scroll down for more stories in the same category. (Story submitted 11/26/2015)

Follow this kind of news @Technovelgy.

| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |

Would you like to contribute a story tip? It's easy:
Get the URL of the story, and the related sf author, and add it here.

Comment/Join discussion ( 0 )

Related News Stories - (" Engineering ")

Poisoning Big Tech's Data Well
Bring on the Civic Notification Distorter.

Sci-Fi Organic Technology
'This latter is a sharp -whoof- almost a thunderclap...' - Gary Shockley, 1984.

Nuclear Batteries May Pack Inner Punch
'... the most super-valuable substance in the solar system.' - Edmond Hamilton, 1940.

Listen Up, Coppertop - Wearable Device Turns You Into A Battery
'It's our way or the highway.'

 

Google
  Web TechNovelgy.com   

Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.

 

 

 

 

Science Fiction Timeline
1600-1899
1900-1939
1940's   1950's
1960's   1970's
1980's   1990's
2000's   2010's

Current News

Autonomous Russian Greenhouse For ISS Wheat
'We saw the gardens, flooded with artificial sunlight, planted with everything imaginable, that supplied the necessary food.'

NASA MOXIE Extracts Oxygen From Mars' Air
'Making oxygen is the trick...'

Implantable Covid-Detecting Microchip Developed By DARPA
'Employees... were implanted with advanced microprocessors...'

SpaceX Requests Starlink For Starship
'... sweating, heat-blistered engineers at every interplanetary radiograph station on three planets.'

SF Writers Predicted John Deere Autonomous Tractors
'The huge plow... seemed to shake itself - and began to move back southward.'

DARPA Funding AI Fighter Pilots
'Cultured brains on a slab.'

StoryFile To Help William Shatner Become Landru
"I am Landru. I am he! All that he was, I am."

Telehealth Drones To The Rescue
'A shadow passed over him, and he looked up.'

Capture Asteroids In A Bag
'... just as a small boy catches a swift ball in his cap.'

Sony Pocket Air Conditioner Is Phil Dick's Idea!
'... he went to the hall closet to get his pith helmet and his mandatory cooling-unit.'

Is It Possible To GROW Planes And Vehicles?
'These are your rudimentary seed packages...'

Guard Dog Robot Security Check
'We still use people at the main gates, but here it's an automated sentry.'

Sheepskin Parchment Helped Medieval Lawyers Prevent Fraud
'The single sheet he held, and even the words and signatures upon it, were all integral parts of a single giant molecule...'

Space 'Hurricane' Has Been Seen
'... it was the biggest of the four hundred odd storms raging in the Fifty Suns region.'

PR2 Fencing Robot Perfect For Kwisatz Haderach-in-training
'Now, we'll work on your timing. Let me see you catch that thing sinister.'

Sole Morphing Astronaut Boots - A New Pair Of Moon Boots?
'It’s an ideal device for kangarooing along in lunar gravity.'

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.