Light field technology that’s currently available, like the Lytro Illum or Raytrix’ industrial light field cameras, is largely based on microlens arrays which allow the flat imaging sensor to infer the direction of light rays in addition to their colour and intensity. While Raytrix has managed to ramp up spatial resolution to 25% of the actual sensor resolution by way of a customised, heterogeneous microlens array, effective resolution is still a limitation of today’s light field cameras.
Now, researchers at the Nanoelectronics and Nanophotonics Lab, University of Michigan, have announced working on a different approach that would allow capturing complete light fields at full sensor resolution. Rather than microlenses in front of a standard imaging sensor, the team around Zhaohui Zhong are developing a new sensor consisting of several transparent light detectors based on graphene, a material consisting of a single layer of carbon atoms. Continue reading →
Light field imaging has captured the mind of many technology enthusiasts and imaging pioneers, and there have been rumours of light field cameras in future iPhones or Android smartphones.
Now a new patent has surfaced that shows Apple is still interested in light field cameras. The twist is, the proposed “plenoptic” (a.k.a. light field) camera system is intended to aid robots in the manufacturing process. Continue reading →
Earlier this week, Lytro announced a new product which takes the company into a new direction: The Lytro Immerge is a futuristic-looking sphere with five rings of light field cameras and sensors to capture the entire light field volume of a scene. The resulting video will be compatible with major virtual reality platforms and headsets such as the Oculus Rift, and allow viewers to look around anywhere from the Immerge’s fixed position, providing an immersive, 360 degree live-action experience.
The authors of “Displays: Fundamentals and Applications”, Rolf R. Hainich and Oliver Bimber, have recently made their book available online. In chapter nine, they take a comprehensive look at various 3D display technologies including light field displays.
The 599 page long book, which sells for 83 US-Dollars in Hardcover form, can now be downloaded free of charge for non-commercial purposes as a 64 MB PDF at displaysbook.info (under “Materials”).
Our book “Displays: Fundamentals and Applications” is now available free of charge for non-commercial purposes.
You can download the ebook (pdf, 599 pages, 360MB) from http://displaysbook.info (Material). The hardcopy can still be ordered from CRC Press.
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A rather secretive startup from Hollywood, Florida, recently made headlines for raising a spectacular investment for their vision of the next generation of Virtual Reality. Big names like Google, Qualcomm Ventures, Andreessen Horowitz, and others have put together the sum of 540 million US-Dollars for a company called Magic Leap, but the public isn’t even sure what the company is working on.
The official press release reads: “Magic Leap is going beyond the current perception of mobile computing, augmented reality, and virtual reality. We are transcending all three, and will revolutionize the way people communicate, purchase, learn, share and play.”
…and Magic Leap’s website doesn’t provide many details either.
The company is reportedly working on Dynamic Digitized Lightfield Signals” (Digital Lightfield, in short), a “biomimetic” technology that “respects how we function naturally as humans”. What that means precisely, the company doesn’t explain. However, Technology Review has dug up some interesting patent applications by Magic Leap which may give us a glimpse into what convinced their investors: Continue reading →