Apple’s latest light field patent describes the use of a camera array for immersive augmented reality (AR), live display walls, head mounted displays, video conferencing, and similar applications based on a user’s point of view. The patent application, simply titled “Light field capture”, talks about AR video conferencing where the user’s background can be replaced with other information (e.g. their own view of a scene, or live sports).
The invention also includes concepts including pixel culling (i.e. following the user’s movements and cropping to the interesting parts of the entire camera view), conversion of 3D data to 2D views for the left and right eyes of the second party,
Interestingly, the authors also mention the possibility for a hybrid display/camera-array that would integrate both devices into a single, light-field sensing screen.
For more information, check out Patently Apple and Patent US9681096 – Light field capture on Google Patents.
Current light field sensors typically consist of an imaging sensor and a separate microlens array, both of which are assembled into an optical system. While this allows the use of common CCD- or CMOS sensors, it may also introduce some issues where extreme precision is needed for optimal imaging conditions, e.g. with microlenses of micrometer-range focal lengths. A mismatch of these separately fabricated elements can affect image quality.
A new patent application by Jong Eun Kim at SK hynix (Korea) aims to solve these potential issues: The patent application details a novel light field imaging device where the microlens array is formed on top of the imaging sensor. Continue reading
Lytro recently upped their Immerge VR Camera to the next generation, with a larger and planar camera array for easier VR video production. Their most highly promoted feature is recording content at 6 degrees of freedom, meaning that you can’t just rotate your view around, but actually move your head around in space (within limits).
At the recent Tribeca Film Festival, the company presented a first VR video experience titled “Hallelujah”, featuring a performance of Leonard Cohen’s popular song, and recorded with the Lytro second-gen Immerge. Lytro’s “Making Of” video not only hints at what VR viewers will see in the video, but also gives some insight into the Immerge production controls and interfaces: Continue reading
At this week’s National Association of Broadcasters (NAB) show in Las Vegas, a startup named Light Field Lab has announced they’re developing the next big thing in display technology: glasses-free holographic TVs.
Founded by former Lytro specialists Jon Karafin (former Head of Light Field Video at Lytro), Brendan Bevensee (former Lead Engineer at Lytro) and Ed Ibe (former Lead Hardware Engineer at Lytro), the company is working on the “next generation of light field display technologies”. Continue reading
Back in August 2016, Lytro unveiled its first Virtual Reality experience, “Moon” (see below), to show off the capabilities of Immerge, the company’s groundbreaking, high-end production camera that records light fields for virtual reality. While it was reportedly an impressive experience for the VR viewer, it also had its limitations (especially with moving objects in the recorded scene).
Now, Ben Lang from RoadToVR talks about a recent visit to Lytro, where he saw the new and improved Immerge prototype. Continue reading